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We've seen recent AWS EKS (Kubernetes) user reports like the following:
After upgrading EKS nodes from v20230203 to v20230217 on our 1.24 EKS
clusters after a few days a number of the nodes have containers stuck
in ContainerCreating state or liveness/readiness probes reporting the
following error:
Readiness probe errored: rpc error: code = Unknown desc = failed to
exec in container: failed to start exec "4a11039f730203ffc003b7[...]":
OCI runtime exec failed: exec failed: unable to start container process:
unable to init seccomp: error loading seccomp filter into kernel:
error loading seccomp filter: errno 524: unknown
However, we had not been seeing this issue on previous AMIs and it only
started to occur on v20230217 (following the upgrade from kernel 5.4 to
5.10) with no other changes to the underlying cluster or workloads.
We tried the suggestions from that issue (sysctl net.core.bpf_jit_limit=452534528)
which helped to immediately allow containers to be created and probes to
execute but after approximately a day the issue returned and the value
returned by cat /proc/vmallocinfo | grep bpf_jit | awk '{s+=$2} END {print s}'
was steadily increasing.
I tested bpf tree to observe bpf_jit_charge_modmem, bpf_jit_uncharge_modmem
their sizes passed in as well as bpf_jit_current under tcpdump BPF filter,
seccomp BPF and native (e)BPF programs, and the behavior all looks sane
and expected, that is nothing "leaking" from an upstream perspective.
The bpf_jit_limit knob was originally added in order to avoid a situation
where unprivileged applications loading BPF programs (e.g. seccomp BPF
policies) consuming all the module memory space via BPF JIT such that loading
of kernel modules would be prevented. The default limit was defined back in
2018 and while good enough back then, we are generally seeing far more BPF
consumers today.
Adjust the limit for the BPF JIT pool from originally 1/4 to now 1/2 of the
module memory space to better reflect today's needs and avoid more users
running into potentially hard to debug issues.
Fixes: fdadd04931 ("bpf: fix bpf_jit_limit knob for PAGE_SIZE >= 64K")
Reported-by: Stephen Haynes <sh@synk.net>
Reported-by: Lefteris Alexakis <lefteris.alexakis@kpn.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://github.com/awslabs/amazon-eks-ami/issues/1179
Link: https://github.com/awslabs/amazon-eks-ami/issues/1219
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230320143725.8394-1-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Merge tag 'keys-fixes-20230321' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull keyrings fixes from David Howells:
- Fix request_key() so that it doesn't cache a looked up key on the
current thread if that thread is a kernel thread.
The cache is cleared during notify_resume - but that doesn't happen
in kernel threads. This is causing cifs DNS keys to be
un-invalidateable.
- Fix a wrapper check in verify_pefile() to not round up the length.
- Change asymmetric_keys code to log errors to make it easier for users
to work out why failures occurred.
* tag 'keys-fixes-20230321' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
asymmetric_keys: log on fatal failures in PE/pkcs7
verify_pefile: relax wrapper length check
keys: Do not cache key in task struct if key is requested from kernel thread
Initialize to zero structures to build a valid
Tx Packet used for the filter programming.
Fixes: a9219b332f ("i40e: VLAN field for flow director")
Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
When a system with E810 with existing VFs gets rebooted the following
hang may be observed.
Pid 1 is hung in iavf_remove(), part of a network driver:
PID: 1 TASK: ffff965400e5a340 CPU: 24 COMMAND: "systemd-shutdow"
#0 [ffffaad04005fa50] __schedule at ffffffff8b3239cb
#1 [ffffaad04005fae8] schedule at ffffffff8b323e2d
#2 [ffffaad04005fb00] schedule_hrtimeout_range_clock at ffffffff8b32cebc
#3 [ffffaad04005fb80] usleep_range_state at ffffffff8b32c930
#4 [ffffaad04005fbb0] iavf_remove at ffffffffc12b9b4c [iavf]
#5 [ffffaad04005fbf0] pci_device_remove at ffffffff8add7513
#6 [ffffaad04005fc10] device_release_driver_internal at ffffffff8af08baa
#7 [ffffaad04005fc40] pci_stop_bus_device at ffffffff8adcc5fc
#8 [ffffaad04005fc60] pci_stop_and_remove_bus_device at ffffffff8adcc81e
#9 [ffffaad04005fc70] pci_iov_remove_virtfn at ffffffff8adf9429
#10 [ffffaad04005fca8] sriov_disable at ffffffff8adf98e4
#11 [ffffaad04005fcc8] ice_free_vfs at ffffffffc04bb2c8 [ice]
#12 [ffffaad04005fd10] ice_remove at ffffffffc04778fe [ice]
#13 [ffffaad04005fd38] ice_shutdown at ffffffffc0477946 [ice]
#14 [ffffaad04005fd50] pci_device_shutdown at ffffffff8add58f1
#15 [ffffaad04005fd70] device_shutdown at ffffffff8af05386
#16 [ffffaad04005fd98] kernel_restart at ffffffff8a92a870
#17 [ffffaad04005fda8] __do_sys_reboot at ffffffff8a92abd6
#18 [ffffaad04005fee0] do_syscall_64 at ffffffff8b317159
#19 [ffffaad04005ff08] __context_tracking_enter at ffffffff8b31b6fc
#20 [ffffaad04005ff18] syscall_exit_to_user_mode at ffffffff8b31b50d
#21 [ffffaad04005ff28] do_syscall_64 at ffffffff8b317169
#22 [ffffaad04005ff50] entry_SYSCALL_64_after_hwframe at ffffffff8b40009b
RIP: 00007f1baa5c13d7 RSP: 00007fffbcc55a98 RFLAGS: 00000202
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1baa5c13d7
RDX: 0000000001234567 RSI: 0000000028121969 RDI: 00000000fee1dead
RBP: 00007fffbcc55ca0 R8: 0000000000000000 R9: 00007fffbcc54e90
R10: 00007fffbcc55050 R11: 0000000000000202 R12: 0000000000000005
R13: 0000000000000000 R14: 00007fffbcc55af0 R15: 0000000000000000
ORIG_RAX: 00000000000000a9 CS: 0033 SS: 002b
During reboot all drivers PM shutdown callbacks are invoked.
In iavf_shutdown() the adapter state is changed to __IAVF_REMOVE.
In ice_shutdown() the call chain above is executed, which at some point
calls iavf_remove(). However iavf_remove() expects the VF to be in one
of the states __IAVF_RUNNING, __IAVF_DOWN or __IAVF_INIT_FAILED. If
that's not the case it sleeps forever.
So if iavf_shutdown() gets invoked before iavf_remove() the system will
hang indefinitely because the adapter is already in state __IAVF_REMOVE.
Fix this by returning from iavf_remove() if the state is __IAVF_REMOVE,
as we already went through iavf_shutdown().
Fixes: 974578017f ("iavf: Add waiting so the port is initialized in remove")
Fixes: a8417330f8 ("iavf: Fix race condition between iavf_shutdown and iavf_remove")
Reported-by: Marius Cornea <mcornea@redhat.com>
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Filters shouldn't be removed in VSI rebuild path. Removing them on PF
VSI results in no rule for PF MAC after changing for example queues
amount.
Remove all filters only in the VSI remove flow. As unload should also
cause the filter to be removed introduce, a new function ice_stop_eth().
It will unroll ice_start_eth(), so remove filters and close VSI.
Fixes: 6624e780a5 ("ice: split ice_vsi_setup into smaller functions")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Setting trust on VF should return EINVAL when there is no VF. Move
checking for switchdev mode after checking if VF exists.
Fixes: c54d209c78 ("ice: Wait for VF to be reset/ready before configuration")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Signed-off-by: Kalyan Kodamagula <kalyan.kodamagula@intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
These particular errors can be encountered while trying to kexec when
secureboot lockdown is in place. Without this change, even with a
signed debug build, one still needs to reboot the machine to add the
appropriate dyndbg parameters (since lockdown blocks debugfs).
Accordingly, upgrade all pr_debug() before fatal error into pr_warn().
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jarkko Sakkinen <jarkko@kernel.org>
cc: Eric Biederman <ebiederm@xmission.com>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: keyrings@vger.kernel.org
cc: linux-crypto@vger.kernel.org
cc: kexec@lists.infradead.org
Link: https://lore.kernel.org/r/20230220171254.592347-3-rharwood@redhat.com/ # v2
The key which gets cached in task structure from a kernel thread does not
get invalidated even after expiry. Due to which, a new key request from
kernel thread will be served with the cached key if it's present in task
struct irrespective of the key validity. The change is to not cache key in
task_struct when key requested from kernel thread so that kernel thread
gets a valid key on every key request.
The problem has been seen with the cifs module doing DNS lookups from a
kernel thread and the results getting pinned by being attached to that
kernel thread's cache - and thus not something that can be easily got rid
of. The cache would ordinarily be cleared by notify-resume, but kernel
threads don't do that.
This isn't seen with AFS because AFS is doing request_key() within the
kernel half of a user thread - which will do notify-resume.
Fixes: 7743c48e54 ("keys: Cache result of request_key*() temporarily in task_struct")
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
cc: Shyam Prasad N <nspmangalore@gmail.com>
cc: Steve French <smfrench@gmail.com>
cc: keyrings@vger.kernel.org
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/CAGypqWw951d=zYRbdgNR4snUDvJhWL=q3=WOyh7HhSJupjz2vA@mail.gmail.com/
Since commit 6c40624930 ("bootconfig: Increase max nodes of bootconfig
from 1024 to 8192 for DCC support") increased the max number of bootconfig
node to 8192, the bootconfig testcase of the max number of nodes fails.
To fix this issue, we can not simply increase the number in the test script
because the test bootconfig file becomes too big (>32KB). To fix that, we
can use a combination of three alphabets (26^3 = 17576). But with that,
we can not express the 8193 (just one exceed from the limitation) because
it also exceeds the max size of bootconfig. So, the first 26 nodes will just
use one alphabet.
With this fix, test-bootconfig.sh passes all tests.
Link: https://lore.kernel.org/all/167888844790.791176.670805252426835131.stgit@devnote2/
Reported-by: Heinz Wiesinger <pprkut@slackware.com>
Link: https://lore.kernel.org/all/2463802.XAFRqVoOGU@amaterasu.liwjatan.org
Fixes: 6c40624930 ("bootconfig: Increase max nodes of bootconfig from 1024 to 8192 for DCC support")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Smatch reports:
drivers/hwmon/xgene-hwmon.c:757 xgene_hwmon_probe() warn:
'ctx->pcc_comm_addr' from ioremap() not released on line: 757.
This is because in drivers/hwmon/xgene-hwmon.c:701 xgene_hwmon_probe(),
ioremap and memremap is not released, which may cause a leak.
To fix this, ioremap and memremap is modified to devm_ioremap and
devm_memremap.
Signed-off-by: Tianyi Jing <jingfelix@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Link: https://lore.kernel.org/r/20230318143851.2191625-1-jingfelix@hust.edu.cn
[groeck: Fixed formatting and subject]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
It is not sufficient to check of_node in current device.
In some cases, this would cause the sensor registration to fail.
This patch looks for device's ancestors to find a valid of_node if any.
Fixes: d560168b5d ("hwmon: (core) New hwmon registration API")
Signed-off-by: Phinex Hung <phinex@realtek.com>
Link: https://lore.kernel.org/r/20230321060224.3819-1-phinex@realtek.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Avoid needlessly rebuilding the compressed image by adding the file
'vmlinuz' to the 'targets' Kbuild make variable.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Like the Windows Lenovo Yoga Book X91F/L the Android Lenovo Yoga Book
X90F/L has a portrait 1200x1920 screen used in landscape mode,
add a quirk for this.
When the quirk for the X91F/L was initially added it was written to
also apply to the X90F/L but this does not work because the Android
version of the Yoga Book uses completely different DMI strings.
Also adjust the X91F/L quirk to reflect that it only applies to
the X91F/L models.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230301095218.28457-1-hdegoede@redhat.com
Add the free_percpu for the allocated "vf->hw.lmt_info" in order to avoid
memory leak, same as the "pf->hw.lmt_info" in
`drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c`.
Fixes: 5c0512072f ("octeontx2-pf: cn10k: Use runtime allocated LMTLINE region")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Acked-by: Geethasowjanya Akula <gakula@marvell.com>
Link: https://lore.kernel.org/r/20230317064337.18198-1-jiasheng@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since io_uring does nonblocking connect requests, if we do two repeated
ones without having a listener, the second will get -ECONNABORTED rather
than the expected -ECONNREFUSED. Treat -ECONNABORTED like a normal retry
condition if we're nonblocking, if we haven't already seen it.
Cc: stable@vger.kernel.org
Fixes: 3fb1bd6881 ("io_uring/net: handle -EINPROGRESS correct for IORING_OP_CONNECT")
Link: https://github.com/axboe/liburing/issues/828
Reported-by: Hui, Chunyang <sanqian.hcy@antgroup.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring_cmd_done() currently assumes that the uring_lock is held
when invoked, and while it generally is, this is not guaranteed.
Pass in the issue_flags associated with it, so that we have
IO_URING_F_UNLOCKED available to be able to lock the CQ ring
appropriately when completing events.
Cc: stable@vger.kernel.org
Fixes: ee692a21e9 ("fs,io_uring: add infrastructure for uring-cmd")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Fix two significant performance issues with fsverity.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux
Pull fsverity fixes from Eric Biggers:
"Fix two significant performance issues with fsverity"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY
fsverity: Remove WQ_UNBOUND from fsverity read workqueue
Fix a bug where when a filesystem was being unmounted, the fscrypt
keyring was destroyed before inodes have been released by the Landlock
LSM. This bug was found by syzbot.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux
Pull fscrypt fix from Eric Biggers:
"Fix a bug where when a filesystem was being unmounted, the fscrypt
keyring was destroyed before inodes have been released by the Landlock
LSM.
This bug was found by syzbot"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
fscrypt: check for NULL keyring in fscrypt_put_master_key_activeref()
fscrypt: improve fscrypt_destroy_keyring() documentation
fscrypt: destroy keyring after security_sb_delete()
Since the expected write location in a sequential file is always at the
end of the file (append write), when an invalid write append location is
detected in zonefs_file_dio_append(), print the invalid written location
instead of the expected write location.
Fixes: a608da3bd7 ("zonefs: Detect append writes at invalid locations")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
In zonefs_file_dio_append(), initialize the variable size to 0 to
prevent compilation and static code analizers warning such as:
New smatch warnings:
fs/zonefs/file.c:441 zonefs_file_dio_append() error: uninitialized
symbol 'size'.
The warning is a false positive as size is never actually used
uninitialized.
No functional change.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/202303191227.GL8Dprbi-lkp@intel.com/
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
The error handling for platform_get_irq() failing no longer works after
a recent change, clang now points this out with a warning:
drivers/gpu/host1x/dev.c:520:6: error: variable 'syncpt_irq' is uninitialized when used here [-Werror,-Wuninitialized]
if (syncpt_irq < 0)
^~~~~~~~~~
Fix this by removing the variable and checking the correct error status.
Fixes: 625d4ffb43 ("gpu: host1x: Rewrite syncpoint interrupt handling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The Acer Aspire 3830TG predates Windows 8, so it defaults to using
acpi_video# for backlight control, but this is non functional on
this model.
Add a DMI quirk to use the native backlight interface which does
work properly.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Geoff Levand says:
====================
net/ps3_gelic_net: DMA related fixes
v9: Make rx_skb_size local to gelic_descr_prepare_rx.
v8: Add more cpu_to_be32 calls.
v7: Remove all cleanups, sync to spider net.
v6: Reworked and cleaned up patches.
v5: Some additional patch cleanups.
v4: More patch cleanups.
v3: Cleaned up patches as requested.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The current Gelic Etherenet driver was checking the return value of its
dma_map_single call, and not using the dma_mapping_error() routine.
Fixes runtime problems like these:
DMA-API: ps3_gelic_driver sb_05: device driver failed to check map error
WARNING: CPU: 0 PID: 0 at kernel/dma/debug.c:1027 .check_unmap+0x888/0x8dc
Fixes: 02c1889166 ("ps3: gigabit ethernet driver for PS3, take3")
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Gelic Ethernet device needs to have the RX sk_buffs aligned to
GELIC_NET_RXBUF_ALIGN, and also the length of the RX sk_buffs must
be a multiple of GELIC_NET_RXBUF_ALIGN.
The current Gelic Ethernet driver was not allocating sk_buffs large
enough to allow for this alignment.
Also, correct the maximum and minimum MTU sizes, and add a new
preprocessor macro for the maximum frame size, GELIC_NET_MAX_FRAME.
Fixes various randomly occurring runtime network errors.
Fixes: 02c1889166 ("ps3: gigabit ethernet driver for PS3, take3")
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
clang with W=1 reports
drivers/net/usb/plusb.c:65:1: error:
unused function 'pl_clear_QuickLink_features' [-Werror,-Wunused-function]
pl_clear_QuickLink_features(struct usbnet *dev, int val)
^
This static function is not used, so remove it.
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Packet length retrieved from descriptor may be larger than
the actual socket buffer length. In such case the cloned
skb passed up the network stack will leak kernel memory contents.
Additionally prevent integer underflow when size is less than
ETH_FCS_LEN.
Fixes: 55d7de9de6 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In emac_probe, &adpt->work_thread is bound with
emac_work_thread. Then it will be started by timeout
handler emac_tx_timeout or a IRQ handler emac_isr.
If we remove the driver which will call emac_remove
to make cleanup, there may be a unfinished work.
The possible sequence is as follows:
Fix it by finishing the work before cleanup in the emac_remove
and disable timeout response.
CPU0 CPU1
|emac_work_thread
emac_remove |
free_netdev |
kfree(netdev); |
|emac_reinit_locked
|emac_mac_down
|//use netdev
Fixes: b9b17debc6 ("net: emac: emac gigabit ethernet controller driver")
Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We collect the software statistics counters for RX bytes (reported to
/proc/net/dev and to ethtool -S $dev | grep 'rx_bytes: ") at a time when
skb->len has already been adjusted by the eth_type_trans() ->
skb_pull_inline(skb, ETH_HLEN) call to exclude the L2 header.
This means that when connecting 2 DSA interfaces back to back and
sending 1 packet with length 100, the sending interface will report
tx_bytes as incrementing by 100, and the receiving interface will report
rx_bytes as incrementing by 86.
Since accounting for that in scripts is quirky and is something that
would be DSA-specific behavior (requiring users to know that they are
running on a DSA interface in the first place), the proposal is that we
treat it as a bug and fix it.
This design bug has always existed in DSA, according to my analysis:
commit 91da11f870 ("net: Distributed Switch Architecture protocol
support") also updates skb->dev->stats.rx_bytes += skb->len after the
eth_type_trans() call. Technically, prior to Florian's commit
a86d8becc3 ("net: dsa: Factor bottom tag receive functions"), each and
every vendor-specific tagging protocol driver open-coded the same bug,
until the buggy code was consolidated into something resembling what can
be seen now. So each and every driver should have its own Fixes: tag,
because of their different histories until the convergence point.
I'm not going to do that, for the sake of simplicity, but just blame the
oldest appearance of buggy code.
There are 2 ways to fix the problem. One is the obvious way, and the
other is how I ended up doing it. Obvious would have been to move
dev_sw_netstats_rx_add() one line above eth_type_trans(), and below
skb_push(skb, ETH_HLEN). But DSA processing is not as simple as that.
We count the bytes after removing everything DSA-related from the
packet, to emulate what the packet's length was, on the wire, when the
user port received it.
When eth_type_trans() executes, dsa_untag_bridge_pvid() has not run yet,
so in case the switch driver requests this behavior - commit
412a1526d0 ("net: dsa: untag the bridge pvid from rx skbs") has the
details - the obvious variant of the fix wouldn't have worked, because
the positioning there would have also counted the not-yet-stripped VLAN
header length, something which is absent from the packet as seen on the
wire (there it may be untagged, whereas software will see it as
PVID-tagged).
Fixes: f613ed665b ("net: dsa: Add support for 64-bit statistics")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we change the M/N values seamlessly during a fastset we should
also update the vblank timestamping stuff to make sure the vblank
timestamp corrections/guesstimations come out exact.
Note that only crtc_clock and framedur_ns can actually end up
changing here during fastsets. Everything else we touch can
only change during full modesets.
Technically we should try to do this exactly at the start of
vblank, but that would require some kind of double buffering
scheme. Let's skip that for now and just update things right
after the commit has been submitted to the hardware. This
means the information will be properly up to date when the
vblank irq handler goes to work. Only if someone ends up
querying some vblanky stuff in between the commit and start
of vblank may we see a slight discrepancy.
Also this same problem really exists for the DRRS downclocking
stuff. But as that is supposed to be more or less transparent
to the user, and it only drops to low gear after a long delay
(1 sec currently) we probably don't have to worry about it.
Any time something is actively submitting updates DRRS will
remain in high gear and so the timestamping constants will
match the hardware state.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Fixes: e6f29923c0 ("drm/i915: Allow M/N change during fastset on bdw+")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230310235828.17439-1-ville.syrjala@linux.intel.com
(cherry picked from commit 8cb1f95cca)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Use hex format so that it is easier to decode.
Fixes: fe5979665f ("drm/i915/debugfs: Add perf_limit_reasons in debugfs")
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230315022906.2467408-1-vinay.belgaumkar@intel.com
(cherry picked from commit 5e008ba67c)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Probe pseudo errors should be injected only in places where real errors
can be encountered, otherwise unwinding code can be broken.
Placing intel_uc_init_late before i915_inject_probe_error violated
this rule, resulting in following bug:
__intel_gt_disable:655 GEM_BUG_ON(intel_gt_pm_is_awake(gt))
Fixes: 481d458cae ("drm/i915/guc: Add golden context to GuC ADS")
Acked-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230314151920.1065847-1-andrzej.hajda@intel.com
(cherry picked from commit c4252a1113)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
debug_active_activate() expected ref->count to be zero
which is not true anymore as __i915_active_activate() calls
debug_active_activate() after incrementing the count.
v2: No need to check for "ref->count == 1" as __i915_active_activate()
already make sure of that(Janusz).
References: https://gitlab.freedesktop.org/drm/intel/-/issues/6733
Fixes: 04240e30ed ("drm/i915: Skip taking acquire mutex for no ref->active callback")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Cc: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230313114613.9874-1-nirmoy.das@intel.com
(cherry picked from commit bfad380c54)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Error captures are tagged with an 'ecode'. This is a pseduo-unique magic
number that is meant to distinguish similar seeming bugs with
different underlying signatures. It is a combination of two ring state
registers. Unfortunately, the register state being used is only valid
in execlist mode. In GuC mode, the register state exists in a separate
list of arbitrary register address/value pairs rather than the named
entry structure. So, search through that list to find the two exciting
registers and copy them over to the structure's named members.
v2: if else if instead of if if (Alan)
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Fixes: a6f0f9cf33 ("drm/i915/guc: Plumb GuC-capture into gpu_coredump")
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Aravind Iddamsetty <aravind.iddamsetty@intel.com>
Cc: Michael Cheng <michael.cheng@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Bruce Chang <yu.bruce.chang@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230311063714.570389-2-John.C.Harrison@Intel.com
(cherry picked from commit 9724ecdbb9)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
The Wa_14017073508 require to send Media Busy/Idle mailbox while
accessing Media tile. As of now it is getting handled while __gt_unpark,
__gt_park. But there are various corner cases where forcewakes are taken
without __gt_unpark i.e. without sending Busy Mailbox especially during
register reads. Forcewakes are taken without busy mailbox leads to
GPU HANG. So bringing mailbox calls under forcewake calls are no feasible
option as forcewake calls are atomic and mailbox calls are blocking.
The issue already fixed in B step so disabling MC6 on A step and
reverting previous commit which handles Wa_14017073508
Fixes: 8f70f1ec58 ("drm/i915/mtl: Add Wa_14017073508 for SAMedia")
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Badal Nilawar <badal.nilawar@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230310061339.2495416-2-badal.nilawar@intel.com
(cherry picked from commit 038a24835a)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
intel_crtc_prepare_cleared_state() is unintentionally losing
the "inherited" flag. This will happen if intel_initial_commit()
is forced to go through the full modeset calculations for
whatever reason.
Afterwards the first real commit from userspace will not get
forced to the full modeset path, and thus eg. audio state may
not get recomputed properly. So if the monitor was already
enabled during boot audio will not work until userspace itself
does an explicit full modeset.
Cc: stable@vger.kernel.org
Tested-by: Lee Shawn C <shawn.c.lee@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230223152048.20878-1-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
(cherry picked from commit 2553bacaf9)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
The commit 2357f2b271 ("drm/i915/mtl: Initial display workarounds")
extended the workaround Wa_16015201720 to MTL. However the registers
that the original WA implemented moved for MTL.
Implement the workaround with the correct register.
v3: Skip clock gating for pipe C, D DMC's and fix the title
Fixes: 2357f2b271 ("drm/i915/mtl: Initial display workarounds")
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230301201053.928709-2-radhakrishna.sripada@intel.com
(cherry picked from commit 0188be507b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
- Fix setting affinity of hwlat threads in containers
Using sched_set_affinity() has unwanted side effects when being
called within a container. Use set_cpus_allowed_ptr() instead.
- Fix per cpu thread management of the hwlat tracer
* Do not start per_cpu threads if one is already running for the CPU.
* When starting per_cpu threads, do not clear the kthread variable
as it may already be set to running per cpu threads
- Fix return value for test_gen_kprobe_cmd()
On error the return value was overwritten by being set to
the result of the call from kprobe_event_delete(), which would
likely succeed, and thus have the function return success.
- Fix splice() reads from the trace file that was broken by
36e2c7421f ("fs: don't allow splice read/write without explicit ops")
- Remove obsolete and confusing comment in ring_buffer.c
The original design of the ring buffer used struct page flags
for tricks to optimize, which was shortly removed due to them
being tricks. But a comment for those tricks remained.
- Set local functions and variables to static
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Merge tag 'trace-v6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix setting affinity of hwlat threads in containers
Using sched_set_affinity() has unwanted side effects when being
called within a container. Use set_cpus_allowed_ptr() instead
- Fix per cpu thread management of the hwlat tracer:
- Do not start per_cpu threads if one is already running for the CPU
- When starting per_cpu threads, do not clear the kthread variable
as it may already be set to running per cpu threads
- Fix return value for test_gen_kprobe_cmd()
On error the return value was overwritten by being set to the result
of the call from kprobe_event_delete(), which would likely succeed,
and thus have the function return success
- Fix splice() reads from the trace file that was broken by commit
36e2c7421f ("fs: don't allow splice read/write without explicit
ops")
- Remove obsolete and confusing comment in ring_buffer.c
The original design of the ring buffer used struct page flags for
tricks to optimize, which was shortly removed due to them being
tricks. But a comment for those tricks remained
- Set local functions and variables to static
* tag 'trace-v6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/hwlat: Replace sched_setaffinity with set_cpus_allowed_ptr
ring-buffer: remove obsolete comment for free_buffer_page()
tracing: Make splice_read available again
ftrace: Set direct_ops storage-class-specifier to static
trace/hwlat: Do not start per-cpu thread if it is already running
trace/hwlat: Do not wipe the contents of per-cpu thread data
tracing/osnoise: set several trace_osnoise.c variables storage-class-specifier to static
tracing: Fix wrong return in kprobe_event_gen_test.c
There is a problem with the behavior of hwlat in a container,
resulting in incorrect output. A warning message is generated:
"cpumask changed while in round-robin mode, switching to mode none",
and the tracing_cpumask is ignored. This issue arises because
the kernel thread, hwlatd, is not a part of the container, and
the function sched_setaffinity is unable to locate it using its PID.
Additionally, the task_struct of hwlatd is already known.
Ultimately, the function set_cpus_allowed_ptr achieves
the same outcome as sched_setaffinity, but employs task_struct
instead of PID.
Test case:
# cd /sys/kernel/tracing
# echo 0 > tracing_on
# echo round-robin > hwlat_detector/mode
# echo hwlat > current_tracer
# unshare --fork --pid bash -c 'echo 1 > tracing_on'
# dmesg -c
Actual behavior:
[573502.809060] hwlat_detector: cpumask changed while in round-robin mode, switching to mode none
Link: https://lore.kernel.org/linux-trace-kernel/20230316144535.1004952-1-costa.shul@redhat.com
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 0330f7aa8e ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs")
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The comment refers to mm/slob.c which is being removed. It comes from
commit ed56829cb3 ("ring_buffer: reset buffer page when freeing") and
according to Steven the borrowed code was a page mapcount and mapping
reset, which was later removed by commit e4c2ce82ca ("ring_buffer:
allocate buffer page pointer"). Thus the comment is not accurate anyway,
remove it.
Link: https://lore.kernel.org/linux-trace-kernel/20230315142446.27040-1-vbabka@suse.cz
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Reported-by: Mike Rapoport <mike.rapoport@gmail.com>
Suggested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Fixes: e4c2ce82ca ("ring_buffer: allocate buffer page pointer")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Since the commit 36e2c7421f ("fs: don't allow splice read/write
without explicit ops") is applied to the kernel, splice() and
sendfile() calls on the trace file (/sys/kernel/debug/tracing
/trace) return EINVAL.
This patch restores these system calls by initializing splice_read
in file_operations of the trace file. This patch only enables such
functionalities for the read case.
Link: https://lore.kernel.org/linux-trace-kernel/20230314013707.28814-1-sfoon.kim@samsung.com
Cc: stable@vger.kernel.org
Fixes: 36e2c7421f ("fs: don't allow splice read/write without explicit ops")
Signed-off-by: Sung-hun Kim <sfoon.kim@samsung.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Here are some small tty and serial driver fixes for 6.3-rc3 to resolve
some reported issues.
They include:
- 8250 driver Kconfig issue pointed out by you that showed up in -rc1
- qcom-geni serial driver fixes
- various 8250 driver fixes for reported problems
- fsl_lpuart driver fixes
- serdev fix for regression in -rc1
- vt.c bugfix
All have been in linux-next for over a week with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for 6.3-rc3 to resolve
some reported issues.
They include:
- 8250 driver Kconfig issue pointed out by you that showed up in -rc1
- qcom-geni serial driver fixes
- various 8250 driver fixes for reported problems
- fsl_lpuart driver fixes
- serdev fix for regression in -rc1
- vt.c bugfix
All have been in linux-next for over a week with no reported problems"
* tag 'tty-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: vt: protect KD_FONT_OP_GET_TALL from unbound access
serial: qcom-geni: drop bogus uart_write_wakeup()
serial: qcom-geni: fix mapping of empty DMA buffer
serial: qcom-geni: fix DMA mapping leak on shutdown
serial: qcom-geni: fix console shutdown hang
serdev: Set fwnode for serdev devices
tty: serial: fsl_lpuart: fix race on RX DMA shutdown
serial: 8250_pci1xxxx: Disable SERIAL_8250_PCI1XXXX config by default
serial: 8250_fsl: fix handle_irq locking
serial: 8250_em: Fix UART port type
serial: 8250: ASPEED_VUART: select REGMAP instead of depending on it
tty: serial: fsl_lpuart: skip waiting for transmission complete when UARTCTRL_SBK is asserted
Revert "tty: serial: fsl_lpuart: adjust SERIAL_FSL_LPUART_CONSOLE config dependency"
Here are a few small char/misc/other driver subsystem patches to resolve
reported problems for 6.3-rc3.
Included in here are:
- Interconnect driver fixes for reported problems
- Memory driver fixes for reported problems.
- nvmem core fix
- firmware driver fix for reported problem.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a few small char/misc/other driver subsystem patches to
resolve reported problems for 6.3-rc3.
Included in here are:
- Interconnect driver fixes for reported problems
- Memory driver fixes for reported problems
- nvmem core fix
- firmware driver fix for reported problem
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (23 commits)
memory: tegra30-emc: fix interconnect registration race
memory: tegra20-emc: fix interconnect registration race
memory: tegra124-emc: fix interconnect registration race
memory: tegra: fix interconnect registration race
interconnect: exynos: drop redundant link destroy
interconnect: exynos: fix registration race
interconnect: exynos: fix node leak in probe PM QoS error path
interconnect: qcom: msm8974: fix registration race
interconnect: qcom: rpmh: fix registration race
interconnect: qcom: rpmh: fix probe child-node error handling
interconnect: qcom: rpm: fix registration race
nvmem: core: return -ENOENT if nvmem cell is not found
firmware: xilinx: don't make a sleepable memory allocation from an atomic context
interconnect: qcom: rpm: fix probe child-node error handling
interconnect: qcom: osm-l3: fix registration race
interconnect: imx: fix registration race
interconnect: fix provider registration API
interconnect: fix icc_provider_del() error handling
interconnect: fix mem leak when freeing nodes
interconnect: qcom: qcm2290: Fix MASTER_SNOC_BIMC_NRT
...
