linux/arch/arm
Russell King 28c670cb9b [ARM] oprofile: avoid lockdep warnings on mpcore oprofile init
Fix lockdep warnings, caused by 'set_affinity' being called without
the correct locks taken and local interrupts disabled:

=================================
[ INFO: inconsistent lock state ]
2.6.22-rc2 #1
---------------------------------
inconsistent {in-hardirq-W} -> {hardirq-on-W} usage.
swapper/1 [HC0[0]:SC0[0]:HE1:SE1] takes:
(irq_controller_lock){++..}, at: [<c002be50>] gic_set_cpu+0x60/0xa0
{in-hardirq-W} state was registered at:
 [<c005d9a8>] lock_acquire+0x58/0x6c
 [<c0233068>] _spin_lock+0x40/0x50
 [<c002c020>] gic_mask_irq+0x2c/0x6c
 [<c0069c64>] handle_level_irq+0x11c/0x14c
 [<c0020060>] asm_do_IRQ+0x60/0x84
 [<c0020d2c>] __irq_svc+0x4c/0xc0
 [<c000ed84>] __alloc_bootmem_nopanic+0x74/0x88
 [<c000edb0>] __alloc_bootmem+0x18/0x3c
 [<c000fa00>] alloc_large_system_hash+0x16c/0x200
 [<c00108dc>] inode_init_early+0x5c/0xa4
 [<c00106dc>] vfs_caches_init_early+0x24/0xa0
 [<c0008e54>] start_kernel+0x220/0x2fc
 [<00008078>] 0x8078
irq event stamp: 88438
hardirqs last  enabled at (88438): [<c0020dc0>] preempt_return+0x20/0x2c
hardirqs last disabled at (88436): [<c00417bc>] __do_softirq+0xb0/0x138
softirqs last  enabled at (88437): [<c0041810>] __do_softirq+0x104/0x138
softirqs last disabled at (88428): [<c0041d9c>] irq_exit+0x68/0x7c

other info that might help us debug this:
no locks held by swapper/1.

stack backtrace:
[<c0025ecc>] (dump_stack+0x0/0x14) from [<c005b1e4>] (print_usage_bug+0x138/0x168)
[<c005b0ac>] (print_usage_bug+0x0/0x168) from [<c005be80>] (mark_lock+0x484/0x6a0)
[<c005b9fc>] (mark_lock+0x0/0x6a0) from [<c005cc48>] (__lock_acquire+0x3c0/0x10c8)
[<c005c888>] (__lock_acquire+0x0/0x10c8) from [<c005d9a8>] (lock_acquire+0x58/0x6c)
[<c005d950>] (lock_acquire+0x0/0x6c) from [<c0233068>] (_spin_lock+0x40/0x50)
[<c0233028>] (_spin_lock+0x0/0x50) from [<c002be50>] (gic_set_cpu+0x60/0xa0)
[<c002bdf0>] (gic_set_cpu+0x0/0xa0) from [<c01b04cc>] (em_route_irq+0x38/0x40)
[<c01b0494>] (em_route_irq+0x0/0x40) from [<c01b04ec>] (em_setup+0x18/0xa4)
[<c01b04d4>] (em_setup+0x0/0xa4) from [<c001570c>] (oprofile_arch_init+0x24/0xe8)
[<c00156e8>] (oprofile_arch_init+0x0/0xe8) from [<c0015640>] (oprofile_init+0x1c/0x64)
[<c0015624>] (oprofile_init+0x0/0x64) from [<c0008a20>] (kernel_init+0x154/0x368)
[<c00088cc>] (kernel_init+0x0/0x368) from [<c003ef34>] (do_exit+0x0/0x904)
oprofile: using arm/mpcore

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-30 13:15:15 +01:00
..
boot Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-05-06 13:20:10 -07:00
common [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
configs [ARM] 4333/2: KS8695: Micrel Development board 2007-05-11 22:02:55 +01:00
kernel [ARM] Fix stacktrace FP range checking 2007-05-30 13:15:12 +01:00
lib [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-aaec2000 Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-at91 [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-clps711x Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-clps7500 Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-davinci [ARM] 4303/3: base kernel support for TI DaVinci 2007-05-11 17:26:55 +01:00
mach-ebsa110 [ARM] EBSA110: fix build errors caused by missing "const" 2007-05-11 17:20:02 +01:00
mach-ep93xx Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-footbridge Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-h720x [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-imx [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-integrator [ARM] integrator: fix pci_v3 compile error with DEBUG_LL 2007-05-17 10:16:55 +01:00
mach-iop13xx Merge master.kernel.org:/home/rmk/linux-2.6-arm 2007-05-21 10:00:22 -07:00
mach-iop32x [ARM] 4383/1: iop: fix usage of '__init' and 'inline' in iop files 2007-05-16 15:35:27 +01:00
mach-iop33x [ARM] 4383/1: iop: fix usage of '__init' and 'inline' in iop files 2007-05-16 15:35:27 +01:00
mach-ixp4xx [ARM] 4406/1: Trivial NSLU2 / NAS-100D header & setup code cleanup 2007-05-26 10:09:39 +01:00
mach-ixp23xx [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-ixp2000 [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-ks8695 [ARM] 4333/2: KS8695: Micrel Development board 2007-05-11 22:02:55 +01:00
mach-l7200 [ARM] Remove compatibility layer for ARM irqs 2006-11-30 12:24:47 +00:00
mach-lh7a40x [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-netx Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-ns9xxx [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-omap1 [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-omap2 [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-pnx4008 [ARM] Spinlock initializer cleanup 2007-05-11 17:38:04 +01:00
mach-pxa [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-realview [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-rpc [ARM] Add platform support for PATA on RiscPC 2007-05-03 14:16:55 +01:00
mach-s3c2400 [ARM] 4157/2: S3C24XX: move arch/arch/mach-s3c2410 into cpu components 2007-02-11 17:36:09 +00:00
mach-s3c2410 [ARM] remove unused header file: arch/arm/mach-s3c2410/bast.h 2007-05-26 10:11:50 +01:00
mach-s3c2412 [ARM] 4384/1: S3C2412/13 SPI registers offset correction 2007-05-16 15:37:43 +01:00
mach-s3c2440 [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-s3c2442 [ARM] 4157/2: S3C24XX: move arch/arch/mach-s3c2410 into cpu components 2007-02-11 17:36:09 +00:00
mach-s3c2443 [ARM] 4400/1: S3C24XX: Add high-speed MMC device definition 2007-05-20 20:03:31 +01:00
mach-sa1100 [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-shark Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-versatile Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mm Merge master.kernel.org:/home/rmk/linux-2.6-arm 2007-05-21 10:00:22 -07:00
nwfpe [ARM] 3729/3: EABI padding rules necessitate the packed attribute of floatx80 2006-07-13 13:04:24 +01:00
oprofile [ARM] oprofile: avoid lockdep warnings on mpcore oprofile init 2007-05-30 13:15:15 +01:00
plat-iop Merge master.kernel.org:/home/rmk/linux-2.6-arm 2007-05-21 10:00:22 -07:00
plat-omap [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
plat-s3c24xx [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
tools [ARM] Update mach-types 2007-05-11 19:54:39 +01:00
vfp [ARM] Remove unnecessary asm/ptrace.h from VFP support code 2007-04-22 10:56:40 +01:00
Kconfig [ARM] 4376/1: Selects GENERIC_GPIO for ARCH_IXP4XX in Kconfig 2007-05-16 15:35:25 +01:00
Kconfig-nommu [ARM] nommu: manage the CP15 things 2006-09-27 17:34:30 +01:00
Kconfig.debug [ARM] Remove DEBUG_WAITQ 2006-11-30 12:24:47 +00:00
Makefile [ARM] 4331/3: Support for Micrel/Kendin KS8695 processor 2007-05-11 22:02:48 +01:00