b11edebbc9
871801 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Honglei Wang
|
b11edebbc9 |
mm: memcg: get number of pages on the LRU list in memcgroup base on lru_zone_size
Commit |
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John Hubbard
|
0cd22afdce |
mm/gup: fix a misnamed "write" argument, and a related bug
In several routines, the "flags" argument is incorrectly named "write".
Change it to "flags".
Also, in one place, the misnaming led to an actual bug:
"flags & FOLL_WRITE" is required, rather than just "flags".
(That problem was flagged by krobot, in v1 of this patch.)
Also, change the flags argument from int, to unsigned int.
You can see that this was a simple oversight, because the
calling code passes "flags" to the fifth argument:
gup_pgd_range():
...
if (!gup_huge_pd(__hugepd(pgd_val(pgd)), addr,
PGDIR_SHIFT, next, flags, pages, nr))
...which, until this patch, the callees referred to as "write".
Also, change two lines to avoid checkpatch line length
complaints, and another line to fix another oversight
that checkpatch called out: missing "int" on pdshift.
Link: http://lkml.kernel.org/r/20191014184639.1512873-3-jhubbard@nvidia.com
Fixes:
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John Hubbard
|
6f24c8d30d |
mm/gup_benchmark: add a missing "w" to getopt string
Even though gup_benchmark.c has code to handle the -w command-line option, the "w" is not part of the getopt string. It looks as if it has been missing the whole time. On my machine, this leads naturally to the following predictable result: $ sudo ./gup_benchmark -w ./gup_benchmark: invalid option -- 'w' ...which is fixed with this commit. Link: http://lkml.kernel.org/r/20191014184639.1512873-2-jhubbard@nvidia.com Signed-off-by: John Hubbard <jhubbard@nvidia.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Keith Busch <keith.busch@intel.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Christoph Hellwig <hch@infradead.org> Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: kbuild test robot <lkp@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Chengguang Xu
|
ce750f43f5 |
ocfs2: fix error handling in ocfs2_setattr()
Should set transfer_to[USRQUOTA/GRPQUOTA] to NULL on error case before jumping to do dqput(). Link: http://lkml.kernel.org/r/20191010082349.1134-1-cgxu519@mykernel.net Signed-off-by: Chengguang Xu <cgxu519@mykernel.net> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
|
b749ecfaf6 |
mm: memcg/slab: fix panic in __free_slab() caused by premature memcg pointer release
Karsten reported the following panic in __free_slab() happening on a s390x
machine:
Unable to handle kernel pointer dereference in virtual kernel address space
Failing address: 0000000000000000 TEID: 0000000000000483
Fault in home space mode while using kernel ASCE.
AS:00000000017d4007 R3:000000007fbd0007 S:000000007fbff000 P:000000000000003d
Oops: 0004 ilc:3 Ý#1¨ PREEMPT SMP
Modules linked in: tcp_diag inet_diag xt_tcpudp ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_at nf_nat
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0-05872-g6133e3e4bada-dirty #14
Hardware name: IBM 2964 NC9 702 (z/VM 6.4.0)
Krnl PSW : 0704d00180000000 00000000003cadb6 (__free_slab+0x686/0x6b0)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:1 PM:0 RI:0 EA:3
Krnl GPRS: 00000000f3a32928 0000000000000000 000000007fbf5d00 000000000117c4b8
0000000000000000 000000009e3291c1 0000000000000000 0000000000000000
0000000000000003 0000000000000008 000000002b478b00 000003d080a97600
0000000000000003 0000000000000008 000000002b478b00 000003d080a97600
000000000117ba00 000003e000057db0 00000000003cabcc 000003e000057c78
Krnl Code: 00000000003cada6: e310a1400004 lg %r1,320(%r10)
00000000003cadac: c0e50046c286 brasl %r14,ca32b8
#00000000003cadb2: a7f4fe36 brc 15,3caa1e
>00000000003cadb6: e32060800024 stg %r2,128(%r6)
00000000003cadbc: a7f4fd9e brc 15,3ca8f8
00000000003cadc0: c0e50046790c brasl %r14,c99fd8
00000000003cadc6: a7f4fe2c brc 15,3caa
00000000003cadc6: a7f4fe2c brc 15,3caa1e
00000000003cadca: ecb1ffff00d9 aghik %r11,%r1,-1
Call Trace:
(<00000000003cabcc> __free_slab+0x49c/0x6b0)
<00000000001f5886> rcu_core+0x5a6/0x7e0
<0000000000ca2dea> __do_softirq+0xf2/0x5c0
<0000000000152644> irq_exit+0x104/0x130
<000000000010d222> do_IRQ+0x9a/0xf0
<0000000000ca2344> ext_int_handler+0x130/0x134
<0000000000103648> enabled_wait+0x58/0x128
(<0000000000103634> enabled_wait+0x44/0x128)
<0000000000103b00> arch_cpu_idle+0x40/0x58
<0000000000ca0544> default_idle_call+0x3c/0x68
<000000000018eaa4> do_idle+0xec/0x1c0
<000000000018ee0e> cpu_startup_entry+0x36/0x40
<000000000122df34> arch_call_rest_init+0x5c/0x88
<0000000000000000> 0x0
INFO: lockdep is turned off.
Last Breaking-Event-Address:
<00000000003ca8f4> __free_slab+0x1c4/0x6b0
Kernel panic - not syncing: Fatal exception in interrupt
The kernel panics on an attempt to dereference the NULL memcg pointer.
When shutdown_cache() is called from the kmem_cache_destroy() context, a
memcg kmem_cache might have empty slab pages in a partial list, which are
still charged to the memory cgroup.
These pages are released by free_partial() at the beginning of
shutdown_cache(): either directly or by scheduling a RCU-delayed work
(if the kmem_cache has the SLAB_TYPESAFE_BY_RCU flag). The latter case
is when the reported panic can happen: memcg_unlink_cache() is called
immediately after shrinking partial lists, without waiting for scheduled
RCU works. It sets the kmem_cache->memcg_params.memcg pointer to NULL,
and the following attempt to dereference it by __free_slab() from the
RCU work context causes the panic.
To fix the issue, let's postpone the release of the memcg pointer to
destroy_memcg_params(). It's called from a separate work context by
slab_caches_to_rcu_destroy_workfn(), which contains a full RCU barrier.
This guarantees that all scheduled page release RCU works will complete
before the memcg pointer will be zeroed.
Big thanks for Karsten for the perfect report containing all necessary
information, his help with the analysis of the problem and testing of the
fix.
Link: http://lkml.kernel.org/r/20191010160549.1584316-1-guro@fb.com
Fixes:
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Aneesh Kumar K.V
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77e080e768 |
mm/memunmap: don't access uninitialized memmap in memunmap_pages()
Patch series "mm/memory_hotplug: Shrink zones before removing memory",
v6.
This series fixes the access of uninitialized memmaps when shrinking
zones/nodes and when removing memory. Also, it contains all fixes for
crashes that can be triggered when removing certain namespace using
memunmap_pages() - ZONE_DEVICE, reported by Aneesh.
We stop trying to shrink ZONE_DEVICE, as it's buggy, fixing it would be
more involved (we don't have SECTION_IS_ONLINE as an indicator), and
shrinking is only of limited use (set_zone_contiguous() cannot detect
the ZONE_DEVICE as contiguous).
We continue shrinking !ZONE_DEVICE zones, however, I reduced the amount
of code to a minimum. Shrinking is especially necessary to keep
zone->contiguous set where possible, especially, on memory unplug of
DIMMs at zone boundaries.
--------------------------------------------------------------------------
Zones are now properly shrunk when offlining memory blocks or when
onlining failed. This allows to properly shrink zones on memory unplug
even if the separate memory blocks of a DIMM were onlined to different
zones or re-onlined to a different zone after offlining.
Example:
:/# cat /proc/zoneinfo
Node 1, zone Movable
spanned 0
present 0
managed 0
:/# echo "online_movable" > /sys/devices/system/memory/memory41/state
:/# echo "online_movable" > /sys/devices/system/memory/memory43/state
:/# cat /proc/zoneinfo
Node 1, zone Movable
spanned 98304
present 65536
managed 65536
:/# echo 0 > /sys/devices/system/memory/memory43/online
:/# cat /proc/zoneinfo
Node 1, zone Movable
spanned 32768
present 32768
managed 32768
:/# echo 0 > /sys/devices/system/memory/memory41/online
:/# cat /proc/zoneinfo
Node 1, zone Movable
spanned 0
present 0
managed 0
This patch (of 10):
With an altmap, the memmap falling into the reserved altmap space are not
initialized and, therefore, contain a garbage NID and a garbage zone.
Make sure to read the NID/zone from a memmap that was initialized.
This fixes a kernel crash that is observed when destroying a namespace:
kernel BUG at include/linux/mm.h:1107!
cpu 0x1: Vector: 700 (Program Check) at [c000000274087890]
pc: c0000000004b9728: memunmap_pages+0x238/0x340
lr: c0000000004b9724: memunmap_pages+0x234/0x340
...
pid = 3669, comm = ndctl
kernel BUG at include/linux/mm.h:1107!
devm_action_release+0x30/0x50
release_nodes+0x268/0x2d0
device_release_driver_internal+0x174/0x240
unbind_store+0x13c/0x190
drv_attr_store+0x44/0x60
sysfs_kf_write+0x70/0xa0
kernfs_fop_write+0x1ac/0x290
__vfs_write+0x3c/0x70
vfs_write+0xe4/0x200
ksys_write+0x7c/0x140
system_call+0x5c/0x68
The "page_zone(pfn_to_page(pfn)" was introduced by
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David Hildenbrand
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00d6c019b5 |
mm/memory_hotplug: don't access uninitialized memmaps in shrink_pgdat_span()
We might use the nid of memmaps that were never initialized. For example, if the memmap was poisoned, we will crash the kernel in pfn_to_nid() right now. Let's use the calculated boundaries of the separate zones instead. This now also avoids having to iterate over a whole bunch of subsections again, after shrinking one zone. Before commit |
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Qian Cai
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a26ee565b6 |
mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo
Uninitialized memmaps contain garbage and in the worst case trigger kernel BUGs, especially with CONFIG_PAGE_POISONING. They should not get touched. For example, when not onlining a memory block that is spanned by a zone and reading /proc/pagetypeinfo with CONFIG_DEBUG_VM_PGFLAGS and CONFIG_PAGE_POISONING, we can trigger a kernel BUG: :/# echo 1 > /sys/devices/system/memory/memory40/online :/# echo 1 > /sys/devices/system/memory/memory42/online :/# cat /proc/pagetypeinfo > test.file page:fffff2c585200000 is uninitialized and poisoned raw: ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff raw: ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff page dumped because: VM_BUG_ON_PAGE(PagePoisoned(p)) There is not page extension available. ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:1107! invalid opcode: 0000 [#1] SMP NOPTI Please note that this change does not affect ZONE_DEVICE, because pagetypeinfo_showmixedcount_print() is called from mm/vmstat.c:pagetypeinfo_showmixedcount() only for populated zones, and ZONE_DEVICE is never populated (zone->present_pages always 0). [david@redhat.com: move check to outer loop, add comment, rephrase description] Link: http://lkml.kernel.org/r/20191011140638.8160-1-david@redhat.com Fixes: |
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Joel Colledge
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ca210ba32e |
scripts/gdb: fix lx-dmesg when CONFIG_PRINTK_CALLER is set
When CONFIG_PRINTK_CALLER is set, struct printk_log contains an additional member caller_id. This affects the offset of the log text. Account for this by using the type information from gdb to determine all the offsets instead of using hardcoded values. This fixes following error: (gdb) lx-dmesg Python Exception <class 'ValueError'> embedded null character: Error occurred in Python command: embedded null character The read_u* utility functions now take an offset argument to make them easier to use. Link: http://lkml.kernel.org/r/20191011142500.2339-1-joel.colledge@linbit.com Signed-off-by: Joel Colledge <joel.colledge@linbit.com> Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Kieran Bingham <kbingham@kernel.org> Cc: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Hildenbrand
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96c804a6ae |
mm/memory-failure.c: don't access uninitialized memmaps in memory_failure()
We should check for pfn_to_online_page() to not access uninitialized memmaps. Reshuffle the code so we don't have to duplicate the error message. Link: http://lkml.kernel.org/r/20191009142435.3975-3-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Fixes: |
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David Hildenbrand
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aad5f69bc1 |
fs/proc/page.c: don't access uninitialized memmaps in fs/proc/page.c
There are three places where we access uninitialized memmaps, namely: - /proc/kpagecount - /proc/kpageflags - /proc/kpagecgroup We have initialized memmaps either when the section is online or when the page was initialized to the ZONE_DEVICE. Uninitialized memmaps contain garbage and in the worst case trigger kernel BUGs, especially with CONFIG_PAGE_POISONING. For example, not onlining a DIMM during boot and calling /proc/kpagecount with CONFIG_PAGE_POISONING: :/# cat /proc/kpagecount > tmp.test BUG: unable to handle page fault for address: fffffffffffffffe #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 114616067 P4D 114616067 PUD 114618067 PMD 0 Oops: 0000 [#1] SMP NOPTI CPU: 0 PID: 469 Comm: cat Not tainted 5.4.0-rc1-next-20191004+ #11 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.4 RIP: 0010:kpagecount_read+0xce/0x1e0 Code: e8 09 83 e0 3f 48 0f a3 02 73 2d 4c 89 e7 48 c1 e7 06 48 03 3d ab 51 01 01 74 1d 48 8b 57 08 480 RSP: 0018:ffffa14e409b7e78 EFLAGS: 00010202 RAX: fffffffffffffffe RBX: 0000000000020000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 00007f76b5595000 RDI: fffff35645000000 RBP: 00007f76b5595000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000140000 R13: 0000000000020000 R14: 00007f76b5595000 R15: ffffa14e409b7f08 FS: 00007f76b577d580(0000) GS:ffff8f41bd400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffe CR3: 0000000078960000 CR4: 00000000000006f0 Call Trace: proc_reg_read+0x3c/0x60 vfs_read+0xc5/0x180 ksys_read+0x68/0xe0 do_syscall_64+0x5c/0xa0 entry_SYSCALL_64_after_hwframe+0x49/0xbe For now, let's drop support for ZONE_DEVICE from the three pseudo files in order to fix this. To distinguish offline memory (with garbage memmap) from ZONE_DEVICE memory with properly initialized memmaps, we would have to check get_dev_pagemap() and pfn_zone_device_reserved() right now. The usage of both (especially, special casing devmem) is frowned upon and needs to be reworked. The fundamental issue we have is: if (pfn_to_online_page(pfn)) { /* memmap initialized */ } else if (pfn_valid(pfn)) { /* * ??? * a) offline memory. memmap garbage. * b) devmem: memmap initialized to ZONE_DEVICE. * c) devmem: reserved for driver. memmap garbage. * (d) devmem: memmap currently initializing - garbage) */ } We'll leave the pfn_zone_device_reserved() check in stable_page_flags() in place as that function is also used from memory failure. We now no longer dump information about pages that are not in use anymore - offline. Link: http://lkml.kernel.org/r/20191009142435.3975-2-david@redhat.com Fixes: |
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David Hildenbrand
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641fe2e938 |
drivers/base/memory.c: don't access uninitialized memmaps in soft_offline_page_store()
Uninitialized memmaps contain garbage and in the worst case trigger kernel BUGs, especially with CONFIG_PAGE_POISONING. They should not get touched. Right now, when trying to soft-offline a PFN that resides on a memory block that was never onlined, one gets a misleading error with CONFIG_PAGE_POISONING: :/# echo 5637144576 > /sys/devices/system/memory/soft_offline_page [ 23.097167] soft offline: 0x150000 page already poisoned But the actual result depends on the garbage in the memmap. soft_offline_page() can only work with online pages, it returns -EIO in case of ZONE_DEVICE. Make sure to only forward pages that are online (iow, managed by the buddy) and, therefore, have an initialized memmap. Add a check against pfn_to_online_page() and similarly return -EIO. Link: http://lkml.kernel.org/r/20191010141200.8985-1-david@redhat.com Fixes: |
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Linus Torvalds
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b9959c7a34 |
filldir[64]: remove WARN_ON_ONCE() for bad directory entries
This was always meant to be a temporary thing, just for testing and to
see if it actually ever triggered.
The only thing that reported it was syzbot doing disk image fuzzing, and
then that warning is expected. So let's just remove it before -rc4,
because the extra sanity testing should probably go to -stable, but we
don't want the warning to do so.
Reported-by: syzbot+3031f712c7ad5dd4d926@syzkaller.appspotmail.com
Fixes:
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Linus Torvalds
|
6b95cf9b8b |
A future-proofing decoding fix from Jeff intended for stable and
a patch for a mostly benign race from Dongsheng. -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAl2qAEkTHGlkcnlvbW92 QGdtYWlsLmNvbQAKCRBKf944AhHzi4mZB/9HMfEfZ8JC9keyVaJpAyvV8ufTR4qs 4b8NNc0MDM01z1Z23G0o89b5M0WEDcGslh25plCifxyNIMa+L/lYKl8CTr7CLVQS qCEtNgJ7ibfM26v7rfHOlk6Nnd07/OmjcioaHu/R3bqEQmXpcWQg+aX9C6mPh/2f yzZTKZdKhTZfUyQQctuhNo9G+wD8K86DYT1XRbubPNQ3VtXKPuNH9rLhvLCZzbVA 6FHW05A4mwSv80MsLgN6qLSKxv/+LjV/voHepH4HygqUKw2+1lwi9BC/4k7sprQs 1jFONZ0p1sv/LdWwJYUyCpwj6d3NliXM0uvYxfyzKveWWCxb3l3gaWUS =7scd -----END PGP SIGNATURE----- Merge tag 'ceph-for-5.4-rc4' of git://github.com/ceph/ceph-client Pull ceph fixes from Ilya Dryomov: "A future-proofing decoding fix from Jeff intended for stable and a patch for a mostly benign race from Dongsheng" * tag 'ceph-for-5.4-rc4' of git://github.com/ceph/ceph-client: rbd: cancel lock_dwork if the wait is interrupted ceph: just skip unrecognized info in ceph_reply_info_extra |
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Linus Torvalds
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fb8527e5c1 |
- Fix DM snapshot deadlock that can occur due to COW throttling
preventing locks from being released. - Fix DM cache's GFP_NOWAIT allocation failure error paths by switching to GFP_NOIO. - Make __hash_find() static in the DM clone target. -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAl2pyB0THHNuaXR6ZXJA cmVkaGF0LmNvbQAKCRDFI/EKLZ0DWgevB/9+YCl73OAJfvT2d74ZO+2qNU8LiWVF /kGlClB7Z7lIyoe7ikwR5wQzmflxqOjBss6/ISOQ7lgizpzNL3xj4LCJnmaoDfDg pjzBevFI7U/Dknx+J6+RHGDRfIFMBHF119+QY1ayjsYpaqVPZQcZI74ZbPJzJoky lrlBbXuW1jClIvsvzN1wfYX3jua7kpGGYlWiEqezWLuv8tfz/6A28chCkjx9/SlN VaIXb2dZuODXpT/0m9HRjAnk04ceqV6fXRhpQp217WR/foK8/EUWznKmWP9d1nLN hkuqIOVQA0AfUvJFMVf9PrZz4TdIICV9fz6+tOogRqYMBEe3sU1chmIB =93dq -----END PGP SIGNATURE----- Merge tag 'for-5.4/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - Fix DM snapshot deadlock that can occur due to COW throttling preventing locks from being released. - Fix DM cache's GFP_NOWAIT allocation failure error paths by switching to GFP_NOIO. - Make __hash_find() static in the DM clone target. * tag 'for-5.4/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm cache: fix bugs when a GFP_NOWAIT allocation fails dm snapshot: rework COW throttling to fix deadlock dm snapshot: introduce account_start_copy() and account_end_copy() dm clone: Make __hash_find static |
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Linus Torvalds
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90105ae1ee |
IOMMU Fixes for Linux v5.4-rc3:
Including: - Fixes for page-table issues on Mali GPUs - Missing free in an error path for ARM-SMMU - PASID decoding in the AMD IOMMU Event log code - Another update for the locking fixes in the AMD IOMMU driver - Reduce the calls to platform_get_irq() in the IPMMU-VMSA and Rockchip IOMMUs to get rid of the warning message added to this function recently -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEr9jSbILcajRFYWYyK/BELZcBGuMFAl2p08MACgkQK/BELZcB GuMlzA/7Bs9TTOr6Cn0idE3FY9T998ZezYi1vLInlyfe+5dD0NZThn1QCDUguTjA KLaWkNkQUPsPr36EWEgrh85mCeUMjf/WB/ua7zUHKdox4om5bQwtb4o8dnDfsrzr V2geah7mwuzTtksTsNhC8oHqHHT2bMw/Uw0ykMOHyOOrwFQ/fwe2Aj+LTqlOASex eUbqeDbE8XkHcflKGjA8r+2fpyaZPUIGj6fSEkxLcgj5S2uDFQJ1Og82TogkQb57 ox4pex+ZcdJbMJd4kP4iv/AQosuYX83S+nOrICZkdfbXN/YQOqDfhesy3uhHw/du +MoFn/lxUA6DX0/hNewuXXH/+uO6JwMOPOZqa+rkxDEDSUQ1NsNALoqUIW3l+CJe GWkjObEllWEDb1ddSa6C/x3qKKzleN5XOkZuKFHRuN0gtkgZnceqtHKU3ZGXIBWg RP+UjCE6DBujoiWIi2ywE88ccEz0lh/3Aad4TiBlE4zkfphXyF2wfzW9oQntqThQ tRPZlJqdc5d1Vx2D743t3Ueq/vvLspbREa8kIDW9MTJESKenK4O+PVca6Q/zy1lI d8dJ7uFqO+PyUW19IXoRqFHh2MRDGugcWPkzgagWuyeWqFeCuOMhRQDiwImBCpJo BepX1ksmhjACASIq6M7yjV7K/6InXvkakNXTo77hugQIrClvAs8= =Pawk -----END PGP SIGNATURE----- Merge tag 'iommu-fixes-v5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: - Fixes for page-table issues on Mali GPUs - Missing free in an error path for ARM-SMMU - PASID decoding in the AMD IOMMU Event log code - Another update for the locking fixes in the AMD IOMMU driver - Reduce the calls to platform_get_irq() in the IPMMU-VMSA and Rockchip IOMMUs to get rid of the warning message added to this function recently * tag 'iommu-fixes-v5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Check PM_LEVEL_SIZE() condition in locked section iommu/amd: Fix incorrect PASID decoding from event log iommu/ipmmu-vmsa: Only call platform_get_irq() when interrupt is mandatory iommu/rockchip: Don't use platform_get_irq to implicitly count irqs iommu/io-pgtable-arm: Support all Mali configurations iommu/io-pgtable-arm: Correct Mali attributes iommu/arm-smmu: Free context bitmap in the err path of arm_smmu_init_domain_context |
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Linus Torvalds
|
8eb4b3b0dd |
copy-struct-from-user-v5.4-rc4
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Merge tag 'copy-struct-from-user-v5.4-rc4' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux
Pull usercopy test fixlets from Christian Brauner:
"This contains two improvements for the copy_struct_from_user() tests:
- a coding style change to get rid of the ugly "if ((ret |= test()))"
pointed out when pulling the original patchset.
- avoid a soft lockups when running the usercopy tests on machines
with large page sizes by scanning only a 1024 byte region"
* tag 'copy-struct-from-user-v5.4-rc4' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux:
usercopy: Avoid soft lockups in test_check_nonzero_user()
lib: test_user_copy: style cleanup
|
||
|
Linus Torvalds
|
7571438a48 |
MMC host:
- sdhci-iproc: Prevent some spurious interrupts - renesas_sdhi/sh_mmcif: Avoid false warnings about IRQs not found MEMSTICK host: - jmb38x_ms: Fix an error handling path at ->probe() -----BEGIN PGP SIGNATURE----- iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAl2pjm8XHHVsZi5oYW5z c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCnGzA//c0XS5gJ5rTEtt8fV2dhe3Gui KG3EvflJQoiSe9haDDRAj4V88IqWxK0sr1PB57pBJQgrhffIvqebZjQzDsIAIz1x KXkxsJkezXra8LLCAIVgR5t5YQKE+lcyBkWzLvVP/0hFXqIcFVamOG5K5J12cuWX 3tQIt05QKHnfUIeGZd779MuA2cgn90PCeln5LulDmfgd6K7nkk8EfBwOHloex2Pb 2BVrIgewc+0u/bULWQQ+8w+pR5o2/FAnY30e0H9IJitZN2bC0+OZ9MoBdiQAMib5 OCnd9CgqbiX0aWaH6b4VWC7NHQVj+qSnFZ3Fv3uU8oKKlx9FsWPZ1sjGcXRVr4BM LHRdkF5WuXLPG1tg7xn+8EDo5wShGEWTw4UnoNDWC3QAGWdq2cKSYnUsvdBIbU1E kWC3cmw9ABQf4ZwGDtcQ9W6AAdZFG4Fuzb1fFDI+wRcBPQI6WHlo4Q/Nhp/5QKkI u4ghooYW430wxErE6S8VVdCHNPdUNyR1Ncj5HOvSho/fvdIdbq6urfvbTuqf7ef3 IaMh++XuwumDhgvTolGnMgiEzbEZh0TFbUXH3WkqsqYDKvDQGE20r5xRQFHvWkzE eMiVwEAeil5oVWamoN81o51Y3xK+COVuhC05USWJP/Csr+I/3cT3eKUiS6fk2+FX r7ZT8j5LHH8y51zVQH4= =jcwI -----END PGP SIGNATURE----- Merge tag 'mmc-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "MMC host: - sdhci-iproc: Prevent some spurious interrupts - renesas_sdhi/sh_mmcif: Avoid false warnings about IRQs not found MEMSTICK host: - jmb38x_ms: Fix an error handling path at ->probe()" * tag 'mmc-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()' mmc: sdhci-iproc: fix spurious interrupts on Multiblock reads with bcm2711 mmc: sh_mmcif: Use platform_get_irq_optional() for optional interrupt mmc: renesas_sdhi: Do not use platform_get_irq() to count interrupts |
||
|
Linus Torvalds
|
5f93393a15 |
sound fixes for 5.4-rc4
Just a few small fixes for the usual suspect, HD- and USB-audio: enablement of runtime PM for Nvidia due to the recent PCI changes, a fix for potential hangs with recent HD-audio platforms, and the rest device-specific quirks. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAl2pI44OHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE+40g/9GzM/iU9fqWcz6zVY44z7YIhsvsfe+En+3gsF uTyKcd60V0lKVmFEEp+pysIj7VbmF3arYsQTrlkwO3hCx1/S90V6FxSJ9a1/U3XN 2PVPTBgHig8QEaR7tgefiRhdb7beJtgeu+1wHC0HJCRplPQI3k7D4fqDnCcsqzvA p/dCBB6z0nMaeqhWN4mEg+YnFW20mRQg840xcCggGI61gKET8h/56RQqQkKIUZPg Ocpt02wwnghsyanKeSbguAKI3ZMOaslLXPXhp2KDlBUCkw7CHRftt9L49P0c0ZlN dLHlfLnYCG/oqDg/MXxqyw3l97hTRSKVDlh6mfnlmP4onJkwg3RJT3Yqq7LW2lEr cr5y/JNFjkiEAicspmZEsbA4JxYqNnwp8yDPLtxZw+vFEAfygyS5M/5P7wV7gG5J fhEhAWVSycbSusjIzngmgFadzmbxqTrmoiTG1fM9oyYja5OhwhERNch//Uid33PC 2kZSy+MVuDmovhZxbPNAAD7sDg1f/qewRs67efm6nzAouTv3PBu0bwNPwWJe8oIy pFI633CC1CCjmGsHmVAQEGBx0wSLlUC4yoDZirE+ypzcf4vkKjJnTLRgCWl2MJw1 hjwMKGKK7um5OWrl+yZW5x8KxlcMj4JQyDHZ3fqH9SdDoNTuVYjWgOD6cmPzSlvE 2n0NYoE= =qL+y -----END PGP SIGNATURE----- Merge tag 'sound-5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Just a few small fixes for the usual suspect, HD- and USB-audio: enablement of runtime PM for Nvidia due to the recent PCI changes, a fix for potential hangs with recent HD-audio platforms, and the rest device-specific quirks" * tag 'sound-5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - Force runtime PM on Nvidia HDMI codecs ALSA: hda/realtek - Enable headset mic on Asus MJ401TA ALSA: usb-audio: Disable quirks for BOSS Katana amplifiers ALSA: hdac: clear link output stream mapping ALSA: hda/realtek: Reduce the Headphone static noise on XPS 9350/9360 |
||
|
Linus Torvalds
|
adca4ce32f |
ACPI fixes for 5.4-rc4
Fix possible use-after-free in the ACPI CPPC support code (John Garry) and prevent the ACPI HMAT parsing code from using possibly incorrect data coming from the platform firmware (Daniel Black). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl2pgMoSHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxoagP/iV98NGjJ9T7qrXYRavUN5PTKg7EesdD NpWsPp6QVM9w6inZd7LbuYNR1neqCR7dtfHopEMy443TSk/TlNDUi33qolTYuC7p rdYORKA4uYmR2ndh5x9ayE5lw+Qk5EzPhYQxXlKAoV9KFGDFl0OclQNlbIjjt+sr MmXzUeF3fu0sDITR9QHqBLggy4WU8Kae40cOakjHPriua9YBWQBa/CfZ1il9LcL4 1GkGltQ6QRHmvTHhGDqEvzBv8IVpGvhpCAy19DrQFxTkz13haig+rO5vTy+iSk49 eU9Wq9ycEH8EJy8+LeX17C0fzspQ39gfW7iqGMmX+fTgkMUxWjw20erVzgOKtN6P L/jydnarvBlubNEZmcC/9AWj3XwbfJf70DbzWcfZRSCBOo+2yLqK9XOtDWVQlC/Q YEfN6cZOUgTwSY5rJJXNqtJ34R5ih/07vI8oNu05VaxVZ40h6oKpvwgqcRffOjGU 1rP0SmyY3QHgs5M8omgXSkvgtTX1f6RbDrZut4Kph4jPSWcHPzHnanvjFTJQ1PJK 9QT3dRwyxPqFn7LLtSytdw/UmrzWx4QMoE6FlC5T2S/jrMNKmwtScY3W85yrgBe4 ouGPErNr6O66hY5hEv/YG2ftLxvhca2AM1Wliw0wAbtB4k6siyRflnslVhuyCK4P M+EtmQkO5T7w =X05s -----END PGP SIGNATURE----- Merge tag 'acpi-5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "Fix possible use-after-free in the ACPI CPPC support code (John Garry) and prevent the ACPI HMAT parsing code from using possibly incorrect data coming from the platform firmware (Daniel Black)" * tag 'acpi-5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: CPPC: Set pcc_data[pcc_ss_id] to NULL in acpi_cppc_processor_exit() ACPI: HMAT: ACPI_HMAT_MEMORY_PD_VALID is deprecated since ACPI-6.3 |
||
|
Linus Torvalds
|
e59b76ff67 |
Power management fixes for 5.4-rc4
- Fix possible NULL pointer dereference in the ACPI processor
scaling initialization code introduced by a recent cpufreq
update (Rafael Wysocki).
- Fix possible deadlock due to suspending cpufreq too late during
system shutdown (Rafael Wysocki).
- Make the PCI device system resume code path be more consistent
with its PM-runtime counterpart to fix an issue with missing
delay on transitions from D3cold to D0 during system resume from
suspend-to-idle on some systems (Rafael Wysocki).
- Drop Dell XPS13 9360 from the LPS0 Idle _DSM blacklist to make it
use suspend-to-idle by default (Mario Limonciello).
- Fix build warning in the core system suspend support code (Ben
Dooks).
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Merge tag 'pm-5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These include a fix for a recent regression in the ACPI CPU
performance scaling code, a PCI device power management fix,
a system shutdown fix related to cpufreq, a removal of an ACPI
suspend-to-idle blacklist entry and a build warning fix.
Specifics:
- Fix possible NULL pointer dereference in the ACPI processor scaling
initialization code introduced by a recent cpufreq update (Rafael
Wysocki).
- Fix possible deadlock due to suspending cpufreq too late during
system shutdown (Rafael Wysocki).
- Make the PCI device system resume code path be more consistent with
its PM-runtime counterpart to fix an issue with missing delay on
transitions from D3cold to D0 during system resume from
suspend-to-idle on some systems (Rafael Wysocki).
- Drop Dell XPS13 9360 from the LPS0 Idle _DSM blacklist to make it
use suspend-to-idle by default (Mario Limonciello).
- Fix build warning in the core system suspend support code (Ben
Dooks)"
* tag 'pm-5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: processor: Avoid NULL pointer dereferences at init time
PCI: PM: Fix pci_power_up()
PM: sleep: include <linux/pm_runtime.h> for pm_wq
cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown
ACPI: PM: Drop Dell XPS13 9360 from LPS0 Idle _DSM blacklist
|
||
|
Linus Torvalds
|
c3419fd6d3 |
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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||
Joerg Roedel
|
46ac18c347 |
iommu/amd: Check PM_LEVEL_SIZE() condition in locked section
The increase_address_space() function has to check the PM_LEVEL_SIZE()
condition again under the domain->lock to avoid a false trigger of the
WARN_ON_ONCE() and to avoid that the address space is increase more
often than necessary.
Reported-by: Qian Cai <cai@lca.pw>
Fixes:
|
||
Rafael J. Wysocki
|
ffba17bb33 |
Merge branch 'acpi-tables'
* acpi-tables: ACPI: HMAT: ACPI_HMAT_MEMORY_PD_VALID is deprecated since ACPI-6.3 |
||
John Garry
|
56a0b978d4 |
ACPI: CPPC: Set pcc_data[pcc_ss_id] to NULL in acpi_cppc_processor_exit()
When enabling KASAN and DEBUG_TEST_DRIVER_REMOVE, I find this KASAN
warning:
[ 20.872057] BUG: KASAN: use-after-free in pcc_data_alloc+0x40/0xb8
[ 20.878226] Read of size 4 at addr ffff00236cdeb684 by task swapper/0/1
[ 20.884826]
[ 20.886309] CPU: 19 PID: 1 Comm: swapper/0 Not tainted 5.4.0-rc1-00009-ge7f7df3db5bf-dirty #289
[ 20.894994] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI RC0 - V1.16.01 03/15/2019
[ 20.903505] Call trace:
[ 20.905942] dump_backtrace+0x0/0x200
[ 20.909593] show_stack+0x14/0x20
[ 20.912899] dump_stack+0xd4/0x130
[ 20.916291] print_address_description.isra.9+0x6c/0x3b8
[ 20.921592] __kasan_report+0x12c/0x23c
[ 20.925417] kasan_report+0xc/0x18
[ 20.928808] __asan_load4+0x94/0xb8
[ 20.932286] pcc_data_alloc+0x40/0xb8
[ 20.935938] acpi_cppc_processor_probe+0x4e8/0xb08
[ 20.940717] __acpi_processor_start+0x48/0xb0
[ 20.945062] acpi_processor_start+0x40/0x60
[ 20.949235] really_probe+0x118/0x548
[ 20.952887] driver_probe_device+0x7c/0x148
[ 20.957059] device_driver_attach+0x94/0xa0
[ 20.961231] __driver_attach+0xa4/0x110
[ 20.965055] bus_for_each_dev+0xe8/0x158
[ 20.968966] driver_attach+0x30/0x40
[ 20.972531] bus_add_driver+0x234/0x2f0
[ 20.976356] driver_register+0xbc/0x1d0
[ 20.980182] acpi_processor_driver_init+0x40/0xe4
[ 20.984875] do_one_initcall+0xb4/0x254
[ 20.988700] kernel_init_freeable+0x24c/0x2f8
[ 20.993047] kernel_init+0x10/0x118
[ 20.996524] ret_from_fork+0x10/0x18
[ 21.000087]
[ 21.001567] Allocated by task 1:
[ 21.004785] save_stack+0x28/0xc8
[ 21.008089] __kasan_kmalloc.isra.9+0xbc/0xd8
[ 21.012435] kasan_kmalloc+0xc/0x18
[ 21.015913] pcc_data_alloc+0x94/0xb8
[ 21.019564] acpi_cppc_processor_probe+0x4e8/0xb08
[ 21.024343] __acpi_processor_start+0x48/0xb0
[ 21.028689] acpi_processor_start+0x40/0x60
[ 21.032860] really_probe+0x118/0x548
[ 21.036512] driver_probe_device+0x7c/0x148
[ 21.040684] device_driver_attach+0x94/0xa0
[ 21.044855] __driver_attach+0xa4/0x110
[ 21.048680] bus_for_each_dev+0xe8/0x158
[ 21.052591] driver_attach+0x30/0x40
[ 21.056155] bus_add_driver+0x234/0x2f0
[ 21.059980] driver_register+0xbc/0x1d0
[ 21.063805] acpi_processor_driver_init+0x40/0xe4
[ 21.068497] do_one_initcall+0xb4/0x254
[ 21.072322] kernel_init_freeable+0x24c/0x2f8
[ 21.076667] kernel_init+0x10/0x118
[ 21.080144] ret_from_fork+0x10/0x18
[ 21.083707]
[ 21.085186] Freed by task 1:
[ 21.088056] save_stack+0x28/0xc8
[ 21.091360] __kasan_slab_free+0x118/0x180
[ 21.095445] kasan_slab_free+0x10/0x18
[ 21.099183] kfree+0x80/0x268
[ 21.102139] acpi_cppc_processor_exit+0x1a8/0x1b8
[ 21.106832] acpi_processor_stop+0x70/0x80
[ 21.110917] really_probe+0x174/0x548
[ 21.114568] driver_probe_device+0x7c/0x148
[ 21.118740] device_driver_attach+0x94/0xa0
[ 21.122912] __driver_attach+0xa4/0x110
[ 21.126736] bus_for_each_dev+0xe8/0x158
[ 21.130648] driver_attach+0x30/0x40
[ 21.134212] bus_add_driver+0x234/0x2f0
[ 21.0x10/0x18
[ 21.161764]
[ 21.163244] The buggy address belongs to the object at ffff00236cdeb600
[ 21.163244] which belongs to the cache kmalloc-256 of size 256
[ 21.175750] The buggy address is located 132 bytes inside of
[ 21.175750] 256-byte region [ffff00236cdeb600, ffff00236cdeb700)
[ 21.187473] The buggy address belongs to the page:
[ 21.192254] page:fffffe008d937a00 refcount:1 mapcount:0 mapping:ffff002370c0fa00 index:0x0 compound_mapcount: 0
[ 21.202331] flags: 0x1ffff00000010200(slab|head)
[ 21.206940] raw: 1ffff00000010200 dead000000000100 dead000000000122 ffff002370c0fa00
[ 21.214671] raw: 0000000000000000 00000000802a002a 00000001ffffffff 0000000000000000
[ 21.222400] page dumped because: kasan: bad access detected
[ 21.227959]
[ 21.229438] Memory state around the buggy address:
[ 21.234218] ffff00236cdeb580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 21.241427] ffff00236cdeb600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 21.248637] >ffff00236cdeb680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 21.255845] ^
[ 21.259062] ffff00236cdeb700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 21.266272] ffff00236cdeb780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 21.273480] ==================================================================
It seems that global pcc_data[pcc_ss_id] can be freed in
acpi_cppc_processor_exit(), but we may later reference this value, so
NULLify it when freed.
Also remove the useless setting of data "pcc_channel_acquired", which
we're about to free.
Fixes:
|
||
|
Rafael J. Wysocki
|
b23eb5c74e |
Merge branches 'pm-cpufreq' and 'pm-sleep'
* pm-cpufreq: ACPI: processor: Avoid NULL pointer dereferences at init time cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown * pm-sleep: PM: sleep: include <linux/pm_runtime.h> for pm_wq ACPI: PM: Drop Dell XPS13 9360 from LPS0 Idle _DSM blacklist |
||
|
Linus Torvalds
|
0e2adab6cf |
arm64 fixes for -rc4
- Work around Cavium/Marvell ThunderX2 erratum #219 - Fix regression in mlock() ABI caused by sign-extension of TTBR1 addresses - More fixes to the spurious kernel fault detection logic - Fix pathological preemption race when enabling some CPU features at boot - Drop broken kcore macros in favour of generic implementations - Fix userspace view of ID_AA64ZFR0_EL1 when SVE is disabled - Avoid NULL dereference on allocation failure during hibernation -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl2o1IsQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNEzXCACi8bK3PWUJ9R6DcUeDNFuSMT0d2C/8CRNj mKnYkHx/GSChLBe3ZsNYbH5wnh70ItKzUUyMwMlwKevpr0kvLn0AN+WuSpP77Thk qFuaO5EC10V039SXoAjOPs4Jxwoi6NaShDJYkLmr2kwp0g7dEol+8C80V1fQVqgx oSmFcrYlqki1qhz8e1qCY4K8fAt6VdMt8OcouXs58ETFqsUFBFy/xx9Vsa0AQKkN ZU8lzGIYNVLtA1G7wei7IuoKgYQ0t7XMynsve9P9i+RXmLrIbeyLpeZyn+3GW0jO r3Epj0lYqKe8IZ+eTUDu3KvKHHdICHIDBDxP2c66hfgkw0prn/vU =9E3e -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "The main thing here is a long-awaited workaround for a CPU erratum on ThunderX2 which we have developed in conjunction with engineers from Cavium/Marvell. At the moment, the workaround is unconditionally enabled for affected CPUs at runtime but we may add a command-line option to disable it in future if performance numbers show up indicating a significant cost for real workloads. Summary: - Work around Cavium/Marvell ThunderX2 erratum #219 - Fix regression in mlock() ABI caused by sign-extension of TTBR1 addresses - More fixes to the spurious kernel fault detection logic - Fix pathological preemption race when enabling some CPU features at boot - Drop broken kcore macros in favour of generic implementations - Fix userspace view of ID_AA64ZFR0_EL1 when SVE is disabled - Avoid NULL dereference on allocation failure during hibernation" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: tags: Preserve tags for addresses translated via TTBR1 arm64: mm: fix inverted PAR_EL1.F check arm64: sysreg: fix incorrect definition of SYS_PAR_EL1_F arm64: entry.S: Do not preempt from IRQ before all cpufeatures are enabled arm64: hibernate: check pgd table allocation arm64: cpufeature: Treat ID_AA64ZFR0_EL1 as RAZ when SVE is not enabled arm64: Fix kcore macros after 52-bit virtual addressing fallout arm64: Allow CAVIUM_TX2_ERRATUM_219 to be selected arm64: Avoid Cavium TX2 erratum 219 when switching TTBR arm64: Enable workaround for Cavium TX2 erratum 219 when running SMT arm64: KVM: Trap VM ops when ARM64_WORKAROUND_CAVIUM_TX2_219_TVM is set |
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|
Linus Torvalds
|
ad32fd7426 |
Xtensa fixes for v5.4:
- fix {get,put}_user() for 64bit values;
- fix warning about static EXPORT_SYMBOL from modpost;
- fix PCI IO ports mapping for the virt board;
- fix pasto in change_bit for exclusive access option.
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Merge tag 'xtensa-20191017' of git://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa fixes from Max Filippov:
- fix {get,put}_user() for 64bit values
- fix warning about static EXPORT_SYMBOL from modpost
- fix PCI IO ports mapping for the virt board
- fix pasto in change_bit for exclusive access option
* tag 'xtensa-20191017' of git://github.com/jcmvbkbc/linux-xtensa:
xtensa: fix change_bit in exclusive access option
xtensa: virt: fix PCI IO ports mapping
xtensa: drop EXPORT_SYMBOL for outs*/ins*
xtensa: fix type conversion in __get_user_[no]check
xtensa: clean up assembly arguments in uaccess macros
xtensa: fix {get,put}_user() for 64bit values
|
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Linus Torvalds
|
6e8ba0098e |
Changes since last update:
- Fix a timestamp signedness problem in the new bulkstat ioctl. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl2l7R8ACgkQ+H93GTRK tOtFnw/9GyBxDqODfne2puAb3nISogzVDVRxzo2Ip4fH+djQ8XF0nZgaVmdK45xm lD0VNCMT7tb7YA9rIKb+G8WdZDfq5XUs2QOR8RCqg2rCy5Kxww8B0e83ziJ/hz8C ebmfuBpNoV3Ul8I4vPN2Qb2nN2wHo8LqMi3GgK3nmv92xuL7Fignh3AxForHSFRz VUQF+canS5IQo2KkbKsP92X1r+nwTG/8GL3WNicm4BgeFHcZbMKJn32OSpZHUSGb RPEpWD1TAROhjOejFpEqEXmU8x8o0BtErgo3dBgGQTntrq9gOPgOuoot3cyweHZK JEtxglnIIbJs0B0sru9ZuN7RkoXZYJjDaTOU8uLst8dwVaoX2kw8siWjQimadKI4 aI323yHpTTjuzZa2PQRU682fNyVNwcDfQnOss28xQG1wG9Pjxo39AZqhpgR1GtX4 kgYBVr6oJ/5HrZ5KFghBnjE1+jx4F4axAhgKqmbsg712mZcr1EM4TlFfd/yX6+Sd ihHlgSeIiZk+2fthnUwRvPuGSYIimtUAXY5wgRzXnqmCFxy3rPafLo41pPkCcYV4 wCHdh6YR1H0/wJ9K2iUMxKKrSdu4PcdaprlD7aX7j3u727gybqOqIhaK6GdlxQg8 zyUZIGQEyR6uTpbtC4xNttZ3OcR5w5u7JjIn6TR3xIws4TkVMwU= =WVUx -----END PGP SIGNATURE----- Merge tag 'xfs-5.4-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull xfs fix from Darrick Wong: "The single fix converts the seconds field in the recently added XFS bulkstat structure to a signed 64-bit quantity. The structure layout doesn't change and so far there are no users of the ioctl to break because we only publish xfs ioctl interfaces through the XFS userspace development libraries, and we're still working on a 5.3 release" * tag 'xfs-5.4-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: change the seconds fields in xfs_bulkstat to signed |
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|
Linus Torvalds
|
839e0f04b5 |
drm fixes for 5.4-rc4
dma-resv: - shared fences for lima/panfrost ttm: - prefault regression fix - lifetime fix panfrost: - stopped job timeout fix - missing register values amdgpu: - smu7 powerplay fix - bail earlier for cik/si detection - navi SDMA fix radeon: - revert a ppc64 shutdown fix that broke x86 i915: - VBT information handling fix - Circular locking fix - preemption vs resubmission virtual requests fix -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJdqNQjAAoJEAx081l5xIa+BcYQAJxVEq26z21jtfaLKPurlRKk ENVFjqpSZJP3WZJN45H1I8DWKzfXpY6g/k8GN070KVoVhAiafLmgK5VC2L4b4SJz MSI4ghvIqoIcw0f1MGXLdtQS2xf4ieSwhUk0AAqFmSAWsgDJBc9t8UhPcx41KTO1 ClRx5ReNcCokBzvf9M5/PSH+EgFpHShjmrCTpaC2IaH58qaRrXIutp6GZy7jhOPG Oe0ntTIukGDsOJS12yU9K7a4iMx8WpATjps54yKR72i99ifDRcnnWe3WnqD68UhZ ZHrhjNF/0wUy9GhVqgd2ei16yLQEF0ODHyhIi6+ECx5h1djYvdML03JIUOGENMN2 WnwEGcT8IP/SK59reqRcPSjc4N4Qni3dB+UKvTnYDrLx1un9mb76CBHWmSL0rpqS 7+gXgPyfhBeVvyymYMn7p3h9DQXUQRmruS3Sia+c4oekgegetm5Ll5drjpeTVPVq 80O2ScjjMgsplaKJOrffolBj3GGTPFf/ZQsZiyzADEgyNoAOgZFgOWSLGvfDfjpp wgrMgarHzrcRlQLTSb920yN/SqJRTMcblbK7H92xyDwPwS0qFX6qACpKwUzAAH0H xD9RqIZwT910XeyKL8CXNCP+oAvTupdAb7KtoyVqK/rXRxBWcha5pGTguSeXXDcT RZqeDtn+6hMCe0EN/Ymg =HZDK -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2019-10-18' of git://anongit.freedesktop.org/drm/drm Pull drm fixes from Dave Airlie: "This is this weeks fixes for drm. The dma-resv one is probably the more important one a fair few people have reported it, besides that it's a couple of panfrost, a few i915 and a few amdgpu fixes. One radeon patch to fix some ppc64 related issues caused an x86 regression so is getting reverted for now. Summary: dma-resv: - shared fences for lima/panfrost ttm: - prefault regression fix - lifetime fix panfrost: - stopped job timeout fix - missing register values amdgpu: - smu7 powerplay fix - bail earlier for cik/si detection - navi SDMA fix radeon: - revert a ppc64 shutdown fix that broke x86 i915: - VBT information handling fix - Circular locking fix - preemption vs resubmission virtual requests fix" * tag 'drm-fixes-2019-10-18' of git://anongit.freedesktop.org/drm/drm: drm/i915: Fixup preempt-to-busy vs resubmission of a virtual request drm/i915/userptr: Never allow userptr into the mappable GGTT drm/i915: Favor last VBT child device with conflicting AUX ch/DDC pin drm/i915/execlists: Refactor -EIO markup of hung requests drm/panfrost: Handle resetting on timeout better drm/panfrost: Add missing GPU feature registers drm/ttm: fix handling in ttm_bo_add_mem_to_lru drm/ttm: Restore ttm prefaulting drm/ttm: fix busy reference in ttm_mem_evict_first drm/amdgpu/sdma5: fix mask value of POLL_REGMEM packet for pipe sync drm/amdgpu: Bail earlier when amdgpu.cik_/si_support is not set to 1 Revert "drm/radeon: Fix EEH during kexec" drm/msm/dsi: Implement reset correctly dma-buf/resv: fix exclusive fence get drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50 drm/tiny: Kconfig: Remove always-y THERMAL dep. from TINYDRM_REPAPER drm/amdgpu/powerplay: fix typo in mvdd table setup |
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Will Deacon
|
777d062e5b |
Merge branch 'errata/tx2-219' into for-next/fixes
Workaround for Cavium/Marvell ThunderX2 erratum #219. * errata/tx2-219: arm64: Allow CAVIUM_TX2_ERRATUM_219 to be selected arm64: Avoid Cavium TX2 erratum 219 when switching TTBR arm64: Enable workaround for Cavium TX2 erratum 219 when running SMT arm64: KVM: Trap VM ops when ARM64_WORKAROUND_CAVIUM_TX2_219_TVM is set |
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Dave Airlie
|
5c1e34b515 |
-dma-resv: Change shared_count to post-increment to fix lima crash (Qiang)
-ttm: A couple fixes related to lifetime and restore prefault behavior (Christian & Thomas) -panfrost: Fill in missing feature reg values and fix stoppedjob timeouts (Steven) Cc: Qiang Yu <yuq825@gmail.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Christian König <christian.koenig@amd.com> Cc: Steven Price <steven.price@arm.com> -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEHF6rntfJ3enn8gh8cywAJXLcr3kFAl2oz+4ACgkQcywAJXLc r3msRAf+OoZdW8VQiDAFlussSOTix7cj5zf2rl41vz/JxgW1BpqBw1QZJfmNERE0 CfO4iRohu/KH7WOby/MJdfoE5uGnwfrOlyBSmZ21vep982Vakj32MSnDF1+SUHxr +X6afxnLvcMh9Mue3doYTXP40Pu4evzd3lIWmVbNyf17hfWS/zl5ciOCR/AZwNxB j4VwV2qoTXCidOaQHXZaEBm96bYNh9HQOXTnNQTDQHg5XpEiVFHHZzt7gQJlZ5ce DJ//To5At0lFLlxDxUnrChtLcL0CFRRuN7k6DQDfRTAc+QF+qGtYtk5wVmWttl44 5vcb7PiSqvmhpsj8AGAnwbykjg8lHQ== =Di3+ -----END PGP SIGNATURE----- Merge tag 'drm-misc-fixes-2019-10-17' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes -dma-resv: Change shared_count to post-increment to fix lima crash (Qiang) -ttm: A couple fixes related to lifetime and restore prefault behavior (Christian & Thomas) -panfrost: Fill in missing feature reg values and fix stoppedjob timeouts (Steven) Cc: Qiang Yu <yuq825@gmail.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Christian König <christian.koenig@amd.com> Cc: Steven Price <steven.price@arm.com> Signed-off-by: Dave Airlie <airlied@redhat.com> From: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20191017203419.GA142909@art_vandelay |
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Dave Airlie
|
7557d27838 |
Merge tag 'drm-fixes-5.4-2019-10-16' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
drm-fixes-5.4-2019-10-16: amdgpu: - Powerplay fix for SMU7 parts - Bail earlier when cik/si support is not set to 1 - Fix an SDMA issue on navi radeon: - revert a PPC fix which broken x86 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191017022443.3853-1-alexander.deucher@amd.com |
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Dave Airlie
|
33ba90eecf |
- Display fix on handling VBT information.
- Important circular locking fix - Fix for preemption vs resubmission on virtual requests - and a prep patch to make this last one to apply cleanly -----BEGIN PGP SIGNATURE----- iQEcBAABAgAGBQJdqHKRAAoJEPpiX2QO6xPKNDAH/01M3WCkeHubU+0bHVH5DE74 0sq4HbVnVAHhReU8wYAMl0v1IndubVrdnxIfieaVDdODZXZCx8bYHuby2rD4bdve gH8ICA90RWU3ubIfjCvxLtoDn7EyPgIMk+GlLhfW+bjGqNtWFt9Ai4Bbm8nqfkAL bUBbPFHJVOuZsmNW/XoSHn1zS8hv1r4dlOANt6JGlawbKSAsw+VtlauySKHO0srA OcvHj9xnZeKsV/1qxZ53sgl3RkjtTWar2KS80JYxtCd8Ru4zEuwFsUC5XCK5mvSE 5xIGjsE5ILSyT6JevVOqc0R9SJylX5mexvClImDeIIIaYtmx33hhWNhg+yR3pDE= =Uosd -----END PGP SIGNATURE----- Merge tag 'drm-intel-fixes-2019-10-17' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - Display fix on handling VBT information. - Important circular locking fix - Fix for preemption vs resubmission on virtual requests - and a prep patch to make this last one to apply cleanly Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191017135444.GA12255@intel.com |
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Linus Torvalds
|
84629d4370 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov: "The main change is that we are reverting blanket enablement of SMBus mode for devices with Elan touchpads that report BIOS release date as 2018+ because there are older boxes with updated BIOSes that still do not work well in SMbus mode. We will have to establish whitelist for SMBus mode it looks like" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Revert "Input: elantech - enable SMBus on new (2018+) systems" Input: synaptics-rmi4 - avoid processing unknown IRQs Input: soc_button_array - partial revert of support for newer surface devices Input: goodix - add support for 9-bytes reports Input: da9063 - fix capability and drop KEY_SLEEP |
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Alexandre Belloni
|
283ea34593 |
coccinelle: api/devm_platform_ioremap_resource: remove useless script
While it is useful for new drivers to use devm_platform_ioremap_resource, this script is currently used to spam maintainers, often updating very old drivers. The net benefit is the removal of 2 lines of code in the driver but the review load for the maintainers is huge. As of now, more that 560 patches have been sent, some of them obviously broken, as in: https://lore.kernel.org/lkml/9bbcce19c777583815c92ce3c2ff2586@www.loen.fr/ Remove the script to reduce the spam. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Lukas Wunner
|
94989e318b |
ALSA: hda - Force runtime PM on Nvidia HDMI codecs
Przemysław Kopa reports that since commit |
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Linus Torvalds
|
fe7d2c23d7 |
platform-drivers-x86 for v5.4-3
Users of Intel P-Unit IPC driver might be surprised by harmless warning. Thus, switch to API which doesn't issue a warning at all. I²C multi-instantiate driver continues to add slave devices even when IRQ resource is not found. For devices in the market IRQ resource is mandatory, so, fail the ->probe() of the parent driver to avoid slaves being probed. Avoid compiler warning due to unused variable in Classmate laptop driver. The following is an automated git shortlog grouped by driver: classmate-laptop: - remove unused variable i2c-multi-instantiate: - Fail the probe if no IRQ provided intel_punit_ipc: - Avoid error message when retrieving IRQ -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEqaflIX74DDDzMJJtb7wzTHR8rCgFAl2oJjgACgkQb7wzTHR8 rCiqIhAAwS3WO6HJultOU75VE4IvHGyaXItnq7wm/tiJm5kEWUgVLid9+p/nwax2 nLQjY1OlP50p7rdZWoIOLB9oZfJmOjzOSr7chxQjKVN1Nvwq1y7cBhNgZX/3d1fk THZcA8RbXMnVpmUNbuAK7IW5H6mh82J4jD7JT9kI75JQCs9+42uoTJBYbRnE2H6j 3V6WSV8y5r0mIxumnd7JyEgpSkDF31OG5r1jJvOG9oHxszPxEOmLzOFw2sBQLcLz oVJwAOI3ChSA1bOKFveAiDUtZo1Ndvy1c0c1ce0SWrdCecDudKmp8mdvExl/R9OW OJOTmTfDuTvdO2TJ9LEJxwOvdox1LNQNQk2hlSktExePR9xptIfOcV7PWqcl33sR qfIF3P0XR80Nwy5DVhZYZCoIa2TYrkP4sYBck9mvorB68D4tGxDeohFmupSp/2T8 InK6OGym7u3VMeAdOyJoOais7uvjWqNgRBZcV9zi5BZmOdMwflNOFrLx7JWQmk4B Sw6Av7z0RvKamOaPJJr+wzIfqs+Hc3WTO1haU3kk8BMHnf5jdPQ9v1misF1ZdoKh 0/jnPSYYT0zAS60k5dXW+LNt77KY+bN5Jai2WnTUnI85jqeeWiiS5cusuIMcvG9M n0Qxd20KBB2hgo662/fWe+U/KhmqdDVPmOuOfp/xBBYWJt/lWT0= =dfns -----END PGP SIGNATURE----- Merge tag 'platform-drivers-x86-v5.4-3' of git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform driver fixes from Andy Shevchenko: - Users of Intel P-Unit IPC driver might be surprised by harmless warning. Thus, switch to API which doesn't issue a warning at all. - I²C multi-instantiate driver continues to add slave devices even when IRQ resource is not found. For devices in the market IRQ resource is mandatory, so, fail the ->probe() of the parent driver to avoid slaves being probed. - Avoid compiler warning due to unused variable in Classmate laptop driver. * tag 'platform-drivers-x86-v5.4-3' of git://git.infradead.org/linux-platform-drivers-x86: platform/x86: i2c-multi-instantiate: Fail the probe if no IRQ provided platform/x86: intel_punit_ipc: Avoid error message when retrieving IRQ platform/x86: classmate-laptop: remove unused variable |
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Mikulas Patocka
|
13bd677a47 |
dm cache: fix bugs when a GFP_NOWAIT allocation fails
GFP_NOWAIT allocation can fail anytime - it doesn't wait for memory being available and it fails if the mempool is exhausted and there is not enough memory. If we go down this path: map_bio -> mg_start -> alloc_migration -> mempool_alloc(GFP_NOWAIT) we can see that map_bio() doesn't check the return value of mg_start(), and the bio is leaked. If we go down this path: map_bio -> mg_start -> mg_lock_writes -> alloc_prison_cell -> dm_bio_prison_alloc_cell_v2 -> mempool_alloc(GFP_NOWAIT) -> mg_lock_writes -> mg_complete the bio is ended with an error - it is unacceptable because it could cause filesystem corruption if the machine ran out of memory temporarily. Change GFP_NOWAIT to GFP_NOIO, so that the mempool code will properly wait until memory becomes available. mempool_alloc with GFP_NOIO can't fail, so remove the code paths that deal with allocation failure. Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> |
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Linus Torvalds
|
7801158f83 |
GPIO fixes for the v5.4 series
The fixes pertain to a problem with initializing the Intel GPIO irqchips when adding gpiochips, Andy fixed it up elegantly by adding a hardware initialization callback to the struct gpio_irq_chip so let's use this. Tested and verified on the target hardware. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl2oFDQACgkQQRCzN7AZ XXMqcxAAoFftmi61CZL5EH9oZNMD5ebg8ovBizNbP5KmQ6oAxv7RkX7TJpdAysAF FpzmKIeR/hSiZ6t046xS2M1zBUHya9sb/X7Nlt7n/ZDbEC/aCvbRKaxADEdR7flQ qzB2u/ZZ25yknTuCxu17Yvo1Bg1T1qEXr+36UJhw8tWDAt60UUi893o6qbnixpJ5 qaQc2IBrSsTStxnT4Tfom1nJ86gvCRgN1lKTCua0rlKVOtSO2MXf7ZlKz0eJBGpa CNML7esE+/+4Qe6QM5KY6Rw9V0jO916N7xPoX2lVnF+HWjCc7uNmB7cWHMk55iuZ NmkLfrkEgRwWjWTRXinlqIWTeFNWfrIsDjRbS+dCxZKxRZutPnUgNq8nrA51tD8P qVdc29gk5myGKYCjc9onbDeJT6dgbf4ck/lYmumxp/EVlHIWFL5gCi1OwV0Nn80C 5KFyLvRf2dyKynaZSebTbdqnds4LHK3c49psnmye2eMKv5e7jCPeSzKgsYeCqT/i SAa0gFhIGUd5e8BxiLwYf6rjCjoa6jXDz6fkCmSGDPU6iycp+wh2V4fSuXn6zBD/ wAm67n2QwcKsLWxvSTnCpcbSUt0eykPXHunswAflV+HDMOgmTz40+9F9Ymvcu+B/ H34k89WBDKWPjePDMrFw2su2EeZFo2o6HFJV8JuJzXn7xGHEpA8= =tDS5 -----END PGP SIGNATURE----- Merge tag 'gpio-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "The fixes pertain to a problem with initializing the Intel GPIO irqchips when adding gpiochips. Andy fixed it up elegantly by adding a hardware initialization callback to the struct gpio_irq_chip so let's use this. Tested and verified on the target hardware" * tag 'gpio-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: lynxpoint: set default handler to be handle_bad_irq() gpio: merrifield: Move hardware initialization to callback gpio: lynxpoint: Move hardware initialization to callback gpio: intel-mid: Move hardware initialization to callback gpiolib: Initialize the hardware with a callback gpio: merrifield: Restore use of irq_base |
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Daniel Drake
|
8c8967a7dc |
ALSA: hda/realtek - Enable headset mic on Asus MJ401TA
On Asus MJ401TA (with Realtek ALC256), the headset mic is connected to pin 0x19, with default configuration value 0x411111f0 (indicating no physical connection). Enable this by quirking the pin. Mic jack detection was also tested and found to be working. This enables use of the headset mic on this product. Signed-off-by: Daniel Drake <drake@endlessm.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191017081501.17135-1-drake@endlessm.com Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Szabolcs Szőke
|
7571b6a17f |
ALSA: usb-audio: Disable quirks for BOSS Katana amplifiers
BOSS Katana amplifiers cannot be used for recording or playback if quirks are applied BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=195223 Signed-off-by: Szabolcs Szőke <szszoke.code@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191011171937.8013-1-szszoke.code@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Chris Wilson
|
0a544a2a72 |
drm/i915: Fixup preempt-to-busy vs resubmission of a virtual request
As preempt-to-busy leaves the request on the HW as the resubmission is processed, that request may complete in the background and even cause a second virtual request to enter queue. This second virtual request breaks our "single request in the virtual pipeline" assumptions. Furthermore, as the virtual request may be completed and retired, we lose the reference the virtual engine assumes is held. Normally, just removing the request from the scheduler queue removes it from the engine, but the virtual engine keeps track of its singleton request via its ve->request. This pointer needs protecting with a reference. v2: Drop unnecessary motion of rq->engine = owner Fixes: |
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Chris Wilson
|
4f2a572eda |
drm/i915/userptr: Never allow userptr into the mappable GGTT
Daniel Vetter uncovered a nasty cycle in using the mmu-notifiers to
invalidate userptr objects which also happen to be pulled into GGTT
mmaps. That is when we unbind the userptr object (on mmu invalidation),
we revoke all CPU mmaps, which may then recurse into mmu invalidation.
We looked for ways of breaking the cycle, but the revocation on
invalidation is required and cannot be avoided. The only solution we
could see was to not allow such GGTT bindings of userptr objects in the
first place. In practice, no one really wants to use a GGTT mmapping of
a CPU pointer...
Just before Daniel's explosive lockdep patches land in v5.4-rc1, we got
a genuine blip from CI:
<4>[ 246.793958] ======================================================
<4>[ 246.793972] WARNING: possible circular locking dependency detected
<4>[ 246.793989] 5.3.0-gbd6c56f50d15-drmtip_372+ #1 Tainted: G U
<4>[ 246.794003] ------------------------------------------------------
<4>[ 246.794017] kswapd0/145 is trying to acquire lock:
<4>[ 246.794030] 000000003f565be6 (&dev->struct_mutex/1){+.+.}, at: userptr_mn_invalidate_range_start+0x18f/0x220 [i915]
<4>[ 246.794250]
but task is already holding lock:
<4>[ 246.794263] 000000001799cef9 (&anon_vma->rwsem){++++}, at: page_lock_anon_vma_read+0xe6/0x2a0
<4>[ 246.794291]
which lock already depends on the new lock.
<4>[ 246.794307]
the existing dependency chain (in reverse order) is:
<4>[ 246.794322]
-> #3 (&anon_vma->rwsem){++++}:
<4>[ 246.794344] down_write+0x33/0x70
<4>[ 246.794357] __vma_adjust+0x3d9/0x7b0
<4>[ 246.794370] __split_vma+0x16a/0x180
<4>[ 246.794385] mprotect_fixup+0x2a5/0x320
<4>[ 246.794399] do_mprotect_pkey+0x208/0x2e0
<4>[ 246.794413] __x64_sys_mprotect+0x16/0x20
<4>[ 246.794429] do_syscall_64+0x55/0x1c0
<4>[ 246.794443] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 246.794456]
-> #2 (&mapping->i_mmap_rwsem){++++}:
<4>[ 246.794478] down_write+0x33/0x70
<4>[ 246.794493] unmap_mapping_pages+0x48/0x130
<4>[ 246.794519] i915_vma_revoke_mmap+0x81/0x1b0 [i915]
<4>[ 246.794519] i915_vma_unbind+0x11d/0x4a0 [i915]
<4>[ 246.794519] i915_vma_destroy+0x31/0x300 [i915]
<4>[ 246.794519] __i915_gem_free_objects+0xb8/0x4b0 [i915]
<4>[ 246.794519] drm_file_free.part.0+0x1e6/0x290
<4>[ 246.794519] drm_release+0xa6/0xe0
<4>[ 246.794519] __fput+0xc2/0x250
<4>[ 246.794519] task_work_run+0x82/0xb0
<4>[ 246.794519] do_exit+0x35b/0xdb0
<4>[ 246.794519] do_group_exit+0x34/0xb0
<4>[ 246.794519] __x64_sys_exit_group+0xf/0x10
<4>[ 246.794519] do_syscall_64+0x55/0x1c0
<4>[ 246.794519] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 246.794519]
-> #1 (&vm->mutex){+.+.}:
<4>[ 246.794519] i915_gem_shrinker_taints_mutex+0x6d/0xe0 [i915]
<4>[ 246.794519] i915_address_space_init+0x9f/0x160 [i915]
<4>[ 246.794519] i915_ggtt_init_hw+0x55/0x170 [i915]
<4>[ 246.794519] i915_driver_probe+0xc9f/0x1620 [i915]
<4>[ 246.794519] i915_pci_probe+0x43/0x1b0 [i915]
<4>[ 246.794519] pci_device_probe+0x9e/0x120
<4>[ 246.794519] really_probe+0xea/0x3d0
<4>[ 246.794519] driver_probe_device+0x10b/0x120
<4>[ 246.794519] device_driver_attach+0x4a/0x50
<4>[ 246.794519] __driver_attach+0x97/0x130
<4>[ 246.794519] bus_for_each_dev+0x74/0xc0
<4>[ 246.794519] bus_add_driver+0x13f/0x210
<4>[ 246.794519] driver_register+0x56/0xe0
<4>[ 246.794519] do_one_initcall+0x58/0x300
<4>[ 246.794519] do_init_module+0x56/0x1f6
<4>[ 246.794519] load_module+0x25bd/0x2a40
<4>[ 246.794519] __se_sys_finit_module+0xd3/0xf0
<4>[ 246.794519] do_syscall_64+0x55/0x1c0
<4>[ 246.794519] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[ 246.794519]
-> #0 (&dev->struct_mutex/1){+.+.}:
<4>[ 246.794519] __lock_acquire+0x15d8/0x1e90
<4>[ 246.794519] lock_acquire+0xa6/0x1c0
<4>[ 246.794519] __mutex_lock+0x9d/0x9b0
<4>[ 246.794519] userptr_mn_invalidate_range_start+0x18f/0x220 [i915]
<4>[ 246.794519] __mmu_notifier_invalidate_range_start+0x85/0x110
<4>[ 246.794519] try_to_unmap_one+0x76b/0x860
<4>[ 246.794519] rmap_walk_anon+0x104/0x280
<4>[ 246.794519] try_to_unmap+0xc0/0xf0
<4>[ 246.794519] shrink_page_list+0x561/0xc10
<4>[ 246.794519] shrink_inactive_list+0x220/0x440
<4>[ 246.794519] shrink_node_memcg+0x36e/0x740
<4>[ 246.794519] shrink_node+0xcb/0x490
<4>[ 246.794519] balance_pgdat+0x241/0x580
<4>[ 246.794519] kswapd+0x16c/0x530
<4>[ 246.794519] kthread+0x119/0x130
<4>[ 246.794519] ret_from_fork+0x24/0x50
<4>[ 246.794519]
other info that might help us debug this:
<4>[ 246.794519] Chain exists of:
&dev->struct_mutex/1 --> &mapping->i_mmap_rwsem --> &anon_vma->rwsem
<4>[ 246.794519] Possible unsafe locking scenario:
<4>[ 246.794519] CPU0 CPU1
<4>[ 246.794519] ---- ----
<4>[ 246.794519] lock(&anon_vma->rwsem);
<4>[ 246.794519] lock(&mapping->i_mmap_rwsem);
<4>[ 246.794519] lock(&anon_vma->rwsem);
<4>[ 246.794519] lock(&dev->struct_mutex/1);
<4>[ 246.794519]
*** DEADLOCK ***
v2: Say no to mmap_ioctl
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111744
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111870
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190928082546.3473-1-chris@chris-wilson.co.uk
(cherry picked from commit
|
||
Ville Syrjälä
|
0336ab5808 |
drm/i915: Favor last VBT child device with conflicting AUX ch/DDC pin
The first come first served apporoach to handling the VBT child device AUX ch conflicts has backfired. We have machines in the wild where the VBT specifies both port A eDP and port E DP (in that order) with port E being the real one. So let's try to flip the preference around and let the last child device win once again. Cc: stable@vger.kernel.org Cc: Jani Nikula <jani.nikula@intel.com> Tested-by: Masami Ichikawa <masami256@gmail.com> Tested-by: Torsten <freedesktop201910@liggy.de> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111966 Fixes: |
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Chris Wilson
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128260a41e |
drm/i915/execlists: Refactor -EIO markup of hung requests
Pull setting -EIO on the hung requests into its own utility function.
Having allowed ourselves to short-circuit submission of completed
requests, we can now do the mark_eio() prior to submission and avoid
some redundant operations.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190923110056.15176-4-chris@chris-wilson.co.uk
(cherry picked from commit
|
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Will Deacon
|
597399d0cb |
arm64: tags: Preserve tags for addresses translated via TTBR1
Sign-extending TTBR1 addresses when converting to an untagged address breaks the documented POSIX semantics for mlock() in some obscure error cases where we end up returning -EINVAL instead of -ENOMEM as a direct result of rewriting the upper address bits. Rework the untagged_addr() macro to preserve the upper address bits for TTBR1 addresses and only clear the tag bits for user addresses. This matches the behaviour of the 'clear_address_tag' assembly macro, so rename that and align the implementations at the same time so that they use the same instruction sequences for the tag manipulation. Link: https://lore.kernel.org/stable/20191014162651.GF19200@arrakis.emea.arm.com/ Reported-by: Jan Stancek <jstancek@redhat.com> Tested-by: Jan Stancek <jstancek@redhat.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Will Deacon <will@kernel.org> |
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Mark Rutland
|
3813733595 |
arm64: mm: fix inverted PAR_EL1.F check
When detecting a spurious EL1 translation fault, we have the CPU retry
the translation using an AT S1E1R instruction, and inspect PAR_EL1 to
determine if the fault was spurious.
When PAR_EL1.F == 0, the AT instruction successfully translated the
address without a fault, which implies the original fault was spurious.
However, in this case we return false and treat the original fault as if
it was not spurious.
Invert the return value so that we treat such a case as spurious.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Fixes:
|
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Yang Yingliang
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29a0f5ad87 |
arm64: sysreg: fix incorrect definition of SYS_PAR_EL1_F
The 'F' field of the PAR_EL1 register lives in bit 0, not bit 1.
Fix the broken definition in 'sysreg.h'.
Fixes:
|
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Julien Thierry
|
19c95f261c |
arm64: entry.S: Do not preempt from IRQ before all cpufeatures are enabled
Preempting from IRQ-return means that the task has its PSTATE saved
on the stack, which will get restored when the task is resumed and does
the actual IRQ return.
However, enabling some CPU features requires modifying the PSTATE. This
means that, if a task was scheduled out during an IRQ-return before all
CPU features are enabled, the task might restore a PSTATE that does not
include the feature enablement changes once scheduled back in.
* Task 1:
PAN == 0 ---| |---------------
| |<- return from IRQ, PSTATE.PAN = 0
| <- IRQ |
+--------+ <- preempt() +--
^
|
reschedule Task 1, PSTATE.PAN == 1
* Init:
--------------------+------------------------
^
|
enable_cpu_features
set PSTATE.PAN on all CPUs
Worse than this, since PSTATE is untouched when task switching is done,
a task missing the new bits in PSTATE might affect another task, if both
do direct calls to schedule() (outside of IRQ/exception contexts).
Fix this by preventing preemption on IRQ-return until features are
enabled on all CPUs.
This way the only PSTATE values that are saved on the stack are from
synchronous exceptions. These are expected to be fatal this early, the
exception is BRK for WARN_ON(), but as this uses do_debug_exception()
which keeps IRQs masked, it shouldn't call schedule().
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
[james: Replaced a really cool hack, with an even simpler static key in C.
expanded commit message with Julien's cover-letter ascii art]
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
|