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
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.c	sparc64: fix sparse warning in pci.c	2014-05-18 19:01:31 -07:00
iommu_common.h	sparc: drop use of extern for prototypes in arch/sparc/*	2014-05-18 19:01:29 -07:00
ioport.c	sparc32: dma_alloc_coherent must honour gfp flags	2014-09-10 14:03:28 -07:00
irq.h	sparc: drop use of extern for prototypes in arch/sparc/*	2014-05-18 19:01:29 -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
itlb_miss.S
ivec.S
jump_label.c
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.c	sparc32: introduce asm-generic/io.h	2014-05-02 01:30:21 -04:00
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_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
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.c	sparc64: Properly claim resources as each PCI bus is probed.	2014-08-13 21:17:49 -07:00
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
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.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_sun4v_asm.S
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.h	sparc: drop use of extern for prototypes in arch/sparc/*	2014-05-18 19:01:29 -07:00
prom_32.c
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
psycho_common.c
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
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.h
sigutil_32.c
sigutil_64.c
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
stacktrace.c
starfire.c
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.h	sparc64: fix sparse warnings in sys_sparc32.c	2014-05-18 19:01:31 -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
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
una_asm_64.S
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