David S. Miller ab5c780913 sparc64: Do irq_{enter,exit}() around generic_smp_call_function*(). ...

Otherwise rcu_irq_{enter,exit}() do not happen and we get dumps like:

====================
[  188.275021] ===============================
[  188.309351] [ INFO: suspicious RCU usage. ]
[  188.343737] 3.18.0-rc3-00068-g20f3963-dirty #54 Not tainted
[  188.394786] -------------------------------
[  188.429170] include/linux/rcupdate.h:883 rcu_read_lock() used
illegally while idle!
[  188.505235]
other info that might help us debug this:

[  188.554230]
RCU used illegally from idle CPU!
rcu_scheduler_active = 1, debug_locks = 0
[  188.637587] RCU used illegally from extended quiescent state!
[  188.690684] 3 locks held by swapper/7/0:
[  188.721932]  #0:  (&x->wait#11){......}, at: [<0000000000495de8>] complete+0x8/0x60
[  188.797994]  #1:  (&p->pi_lock){-.-.-.}, at: [<000000000048510c>] try_to_wake_up+0xc/0x400
[  188.881343]  #2:  (rcu_read_lock){......}, at: [<000000000048a910>] select_task_rq_fair+0x90/0xb40
[  188.973043]stack backtrace:
[  188.993879] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 3.18.0-rc3-00068-g20f3963-dirty #54
[  189.076187] Call Trace:
[  189.089719]  [0000000000499360] lockdep_rcu_suspicious+0xe0/0x100
[  189.147035]  [000000000048a99c] select_task_rq_fair+0x11c/0xb40
[  189.202253]  [00000000004852d8] try_to_wake_up+0x1d8/0x400
[  189.252258]  [000000000048554c] default_wake_function+0xc/0x20
[  189.306435]  [0000000000495554] __wake_up_common+0x34/0x80
[  189.356448]  [00000000004955b4] __wake_up_locked+0x14/0x40
[  189.406456]  [0000000000495e08] complete+0x28/0x60
[  189.448142]  [0000000000636e28] blk_end_sync_rq+0x8/0x20
[  189.496057]  [0000000000639898] __blk_mq_end_request+0x18/0x60
[  189.550249]  [00000000006ee014] scsi_end_request+0x94/0x180
[  189.601286]  [00000000006ee334] scsi_io_completion+0x1d4/0x600
[  189.655463]  [00000000006e51c4] scsi_finish_command+0xc4/0xe0
[  189.708598]  [00000000006ed958] scsi_softirq_done+0x118/0x140
[  189.761735]  [00000000006398ec] __blk_mq_complete_request_remote+0xc/0x20
[  189.827383]  [00000000004c75d0] generic_smp_call_function_single_interrupt+0x150/0x1c0
[  189.906581]  [000000000043e514] smp_call_function_single_client+0x14/0x40
====================

Based almost entirely upon a patch by Paul E. McKenney.

Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>

2014-11-07 09:50:48 -08:00

..

.gitignore

…

apc.c

sparc idle: rename pm_idle to sparc_idle

2013-02-17 23:36:56 -05:00

asm-offsets.c

[PATCH] sparc32: vm_area_struct access for old Sun SPARCs.

2013-07-10 13:56:10 -07:00

audit.c

sparc64: fix sparse warnings in compat_audit.c

2014-05-18 19:01:34 -07:00

auxio_32.c

sparc32: fix sparse warning in auxio_32.c

2014-05-18 19:01:27 -07:00

auxio_64.c

sparc: remove __devinit, __devexit annotations

2013-01-12 15:28:45 -08:00

btext.c

sparc64: fix sparse warning in btext.c

2014-05-18 19:01:30 -07:00

central.c

sparc: remove __devinit, __devexit annotations

2013-01-12 15:28:45 -08:00

cherrs.S

…

chmc.c

sparc: remove __devinit, __devexit annotations

2013-01-12 15:28:45 -08:00

compat_audit.c

sparc64: fix sparse warnings in compat_audit.c

2014-05-18 19:01:34 -07:00

cpu.c

sparc64: correctly recognise M6 and M7 cpu type

2014-09-09 15:24:10 -07:00

cpumap.c

sparc64: support M6 and M7 for building CPU distribution map

2014-09-09 15:24:10 -07:00

cpumap.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

devices.c

sparc32: drop tadpole specific code

2014-05-18 19:01:29 -07:00

dma.c

sparc: remove several unnecessary module.h include instances

2011-10-31 19:30:54 -04:00

ds.c

sparc64: Move request_irq() from ldc_bind() to ldc_alloc()

2014-09-16 18:31:31 -07:00

dtlb_miss.S

…

dtlb_prot.S

sparc64: Fix corrupted thread fault code.

2014-10-18 23:03:09 -04:00

ebus.c

sparc: delete non-required instances of include <linux/init.h>

2014-01-28 23:38:23 -08:00

entry.h

sparc64: Fix register corruption in top-most kernel stack frame during boot.

2014-10-24 09:52:49 -07:00

entry.S

sparc32: Fix exit flag passed from traced sys_sigreturn

2013-07-31 19:10:04 -07:00

etrap_32.S

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-27 23:52:49 -07:00

etrap_64.S

sparc64: clear syscall_noerror on the entry to syscall, not on the exit

2012-10-14 19:26:52 -04:00

fpu_traps.S

…

ftrace.c

ftrace: Do not pass data to ftrace_dyn_arch_init

2014-03-07 10:06:14 -05:00

getsetcc.S

…

head_32.S

sparc32: drop swapper_pg_dir

2012-07-26 16:46:15 -07:00

head_64.S

sparc64: Fix register corruption in top-most kernel stack frame during boot.

2014-10-24 09:52:49 -07:00

helpers.S

…

hvapi.c

sparc64: T5 PMU

2014-09-16 18:26:40 -07:00

hvcalls.S

sparc64: T5 PMU

2014-09-16 18:26:40 -07:00

hvtramp.S

sparc64: Fix register corruption in top-most kernel stack frame during boot.

2014-10-24 09:52:49 -07:00

idprom.c

sparc: Clear out unused asm/machines.h values.

2012-05-11 20:45:18 -07:00

iommu_common.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

iommu.c

sparc64: fix sparse warning in pci.c

2014-05-18 19:01:31 -07:00

ioport.c

sparc32: dma_alloc_coherent must honour gfp flags

2014-09-10 14:03:28 -07:00

irq_32.c

sparc32: fix sparse warnings in irq_32.c

2014-04-29 01:12:25 -04:00

irq_64.c

sparc64: sparse irq

2014-10-05 16:53:40 -07:00

irq.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

itlb_miss.S

…

ivec.S

…

jump_label.c

sparc: Fix even more fallout from system.h split.

2012-03-29 22:40:52 -07:00

kernel.h

sparc64: fix sparse warning in kgdb_64.c

2014-05-18 19:01:34 -07:00

kgdb_32.c

sparc: explicitly include sched.h to get task_thread_info declaration

2013-02-06 11:04:10 -08:00

kgdb_64.c

sparc64: fix sparse warning in kgdb_64.c

2014-05-18 19:01:34 -07:00

kprobes.c

sparc: Replace __get_cpu_var uses

2014-08-26 13:45:55 -04:00

kstack.h

…

ktlb.S

sparc64: Adjust vmalloc region size based upon available virtual address bits.

2014-10-05 16:53:40 -07:00

ldc.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

2014-10-11 20:36:34 -04:00

led.c

…

leon_kernel.c

sparc: leon: Fix race condition between leon_cycles_offset and timer_interrupt

2014-09-09 16:39:10 -07:00

leon_pci_grpci1.c

sparc32: replace flip_dword() with swab32()

2014-05-02 01:30:21 -04:00

leon_pci_grpci2.c

sparc32: replace flip_dword() with swab32()

2014-05-02 01:30:21 -04:00

leon_pci.c

sparc32: introduce asm-generic/io.h

2014-05-02 01:30:21 -04:00

leon_pmc.c

sparc32: fix sparse warnings in leon_pmc.c

2014-04-29 01:12:27 -04:00

leon_smp.c

sparc: Replace __get_cpu_var uses

2014-08-26 13:45:55 -04:00

Makefile

sparc32: drop tadpole specific code

2014-05-18 19:01:29 -07:00

mdesc.c

sparc: Add support for seek and shorter read to /dev/mdesc

2014-07-21 21:37:06 -07:00

misctrap.S

…

module.c

mm/arch: use NUMA_NO_NODE

2013-11-13 12:09:05 +09:00

nmi.c

sparc: Replace __get_cpu_var uses

2014-08-26 13:45:55 -04:00

of_device_32.c

sparc32: rename sparc_irq_config to sparc_config

2012-04-15 10:28:49 -07:00

of_device_64.c

devicetree: add helper inline for retrieving a node's full name

2012-07-06 07:16:34 -05:00

of_device_common.c

sparc: fix sparse warnings in of_device_common.c

2014-04-29 01:12:27 -04:00

of_device_common.h

…

pci_common.c

sparc: delete non-required instances of include <linux/init.h>

2014-01-28 23:38:23 -08:00

pci_fire.c

sparc: remove __devinit, __devexit annotations

2013-01-12 15:28:45 -08:00

pci_impl.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

pci_msi.c

sparc: convert old cpumask API into new one

2011-05-16 13:38:07 -07:00

pci_psycho.c

sparc: remove __devinit, __devexit annotations

2013-01-12 15:28:45 -08:00

pci_sabre.c

sparc: remove __devinit, __devexit annotations

2013-01-12 15:28:45 -08:00

pci_schizo.c

sparc64: Fix crashes in schizo_pcierr_intr_other().

2014-11-01 00:33:58 -04:00

pci_sun4v_asm.S

…

pci_sun4v.c

sparc: Replace __get_cpu_var uses

2014-08-26 13:45:55 -04:00

pci_sun4v.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

pci.c

sparc64: Properly claim resources as each PCI bus is probed.

2014-08-13 21:17:49 -07:00

pcic.c

sparc32: fix sparse warnings in pcic.c

2014-05-18 19:01:27 -07:00

pcr.c

sparc64: T5 PMU

2014-09-16 18:26:40 -07:00

perf_event.c

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

pmc.c

sparc idle: rename pm_idle to sparc_idle

2013-02-17 23:36:56 -05:00

power.c

sparc: remove __devinit, __devexit annotations

2013-01-12 15:28:45 -08:00

process_32.c

sparc32: fix sparse warning in auxio_32.c

2014-05-18 19:01:27 -07:00

process_64.c

sparc64: Fix pcr_ops initialization and usage bugs.

2014-08-11 20:45:12 -07:00

prom_32.c

sparc: remove several unnecessary module.h include instances

2011-10-31 19:30:54 -04:00

prom_64.c

sparc64: fix sparse warning in prom_64.c

2014-05-18 19:01:31 -07:00

prom_common.c

of: Fix locking vs. interrupts

2013-06-13 22:12:14 +01:00

prom_irqtrans.c

sparc: Remove unnecessary semicolons

2011-06-07 16:06:34 -07:00

prom.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

psycho_common.c

sparc: Remove unnecessary semicolons

2011-06-07 16:06:34 -07:00

psycho_common.h

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-18 19:01:29 -07:00

ptrace_32.c

sparc32: fix sparse warning in ptrace_32.c

2014-04-29 01:12:26 -04:00

ptrace_64.c

ARCH: AUDIT: audit_syscall_entry() should not require the arch

2014-09-23 16:21:26 -04:00

reboot.c

Disintegrate asm/system.h for Sparc

2012-03-28 18:30:03 +01:00

rtrap_32.S

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-27 23:52:49 -07:00

rtrap_64.S

Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-19 10:40:00 -08:00

sbus.c

sparc: kernel/sbus.c: fix memory leakage

2013-01-21 14:33:00 -08:00

setup_32.c

sparc32: fix sparse warnings in setup_32.c

2014-04-29 01:12:25 -04:00

setup_64.c

sparc64: Fix register corruption in top-most kernel stack frame during boot.

2014-10-24 09:52:49 -07:00

signal32.c

sparc64: clean up compat_sigset_t.seta handling

2014-05-18 19:01:32 -07:00

signal_32.c

sparc32: fix sparse warnings in signal_32.c

2014-04-29 01:12:25 -04:00

signal_64.c

sparc64: fix sparse "Should it be static?" warnings in signal32.c

2014-05-18 19:01:32 -07:00

sigutil_32.c

Disintegrate asm/system.h for Sparc

2012-03-28 18:30:03 +01:00

sigutil_64.c

Disintegrate asm/system.h for Sparc

2012-03-28 18:30:03 +01:00

sigutil.h

sparc: Allow handling signals when stack is corrupted.

2011-08-20 17:14:54 -07:00

smp_32.c

sparc: fix decimal printf format specifiers prefixed with 0x

2014-08-06 14:41:10 -07:00

smp_64.c

sparc64: Do irq_{enter,exit}() around generic_smp_call_function*().

2014-11-07 09:50:48 -08:00

sparc_ksyms_32.c

sparc: delete non-required instances of include <linux/init.h>

2014-01-28 23:38:23 -08:00

sparc_ksyms_64.c

sparc: delete non-required instances of include <linux/init.h>

2014-01-28 23:38:23 -08:00

spiterrs.S

…

sstate.c

sparc: Set reboot-cmd using reboot data hypervisor call if available.

2011-08-02 21:28:52 -07:00

stacktrace.c

sparc: move symbol exporters to use export.h not module.h

2011-10-31 19:30:53 -04:00

starfire.c

sparc: explicitly cast negative phandle checks to s32

2011-01-03 20:02:06 -07:00

sun4d_irq.c

sparc32: fix sparse warnings in sun4d_irq.c

2014-04-29 01:12:25 -04:00

sun4d_smp.c

sparc: Replace __get_cpu_var uses

2014-08-26 13:45:55 -04:00

sun4m_irq.c

sun4M: add include of slab.h for kzalloc

2014-02-12 16:10:45 -05:00

sun4m_smp.c

sparc: delete __cpuinit/__CPUINIT usage from all users

2013-07-14 19:36:52 -04:00

sun4v_ivec.S

…

sun4v_tlb_miss.S

sparc64: sun4v TLB error power off events

2014-09-16 17:46:44 -07:00

sys32.S

sparc: Hook up renameat2 syscall.

2014-07-21 22:27:56 -07:00

sys_sparc32.c

sparc64: fix sparse warnings in sys_sparc32.c

2014-05-18 19:01:31 -07:00

sys_sparc_32.c

sparc32: fix sparse warnings in sys_sparc_32.c

2014-05-18 19:01:28 -07:00

sys_sparc_64.c

sparc64: fix sparse warnings in sys_sparc_64.c + unaligned_64.c

2014-05-18 19:01:30 -07:00

syscalls.S

sparc64: don't treat 64-bit syscall return codes as 32-bit

2014-03-17 15:54:52 -04:00

sysfs.c

sparc64: fix format string mismatch in arch/sparc/kernel/sysfs.c

2014-05-21 12:54:42 -07:00

systbls_32.S

sparc: Hook up bpf system call.

2014-10-28 11:30:43 -07:00

systbls_64.S

sparc: Hook up bpf system call.

2014-10-28 11:30:43 -07:00

systbls.h

sparc64: fix sparse warnings in sys_sparc32.c

2014-05-18 19:01:31 -07:00

time_32.c

sparc32: fix sparse warnings in time_32.c

2014-05-18 19:01:27 -07:00

time_64.c

sparc: Replace __get_cpu_var uses

2014-08-26 13:45:55 -04:00

trampoline_32.S

sparc: delete non-required instances of include <linux/init.h>

2014-01-28 23:38:23 -08:00

trampoline_64.S

sparc64: Fix register corruption in top-most kernel stack frame during boot.

2014-10-24 09:52:49 -07:00

traps_32.c

sparc: fix sparse warning in math_{32,64}

2014-05-18 19:01:28 -07:00

traps_64.c

sparc64: sun4v TLB error power off events

2014-09-16 17:46:44 -07:00

tsb.S

sparc64: Fix corrupted thread fault code.

2014-10-18 23:03:09 -04:00

ttable_32.S

sparc32: move trap table to a separate file

2012-05-19 23:27:25 -07:00

ttable_64.S

sparc64: renamed ttable.S to ttable_64.S

2012-05-19 23:26:41 -07:00

una_asm_32.S

sparc32: unaligned memory access (MNA) trap handler bug

2011-02-01 12:39:59 -08:00

una_asm_64.S

sparc: Fix .size directive for do_int_load

2011-03-16 18:19:15 -07:00

unaligned_32.c

sparc: use %s for unaligned panic

2014-07-21 21:37:06 -07:00

unaligned_64.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next

2014-06-19 07:50:07 -10:00

utrap.S

…

vio.c

sparc64: Add vio_set_intr() to enable/disable Rx interrupts

2014-09-30 14:40:45 -07:00

viohs.c

sparc: VIO protocol version 1.6

2014-09-30 14:17:08 -07:00

visemul.c

sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.

2012-10-26 15:18:37 -07:00

vmlinux.lds.S

sparc64: Kill unnecessary tables and increase MAX_BANKS.

2014-10-05 16:53:40 -07:00

windows.c

sparc32: fix sparse warnings in windows.c

2014-04-29 01:12:25 -04:00

winfixup.S

sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.

2012-10-26 15:18:37 -07:00

wof.S

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-27 23:52:49 -07:00

wuf.S

sparc32: introduce support for run-time patching for all shared assembler code

2012-05-27 23:52:49 -07:00