AcoSail/kernel_optimize_test
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38c54ee8d5
kernel_optimize_test/drivers
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Heiko Carstens 38c54ee8d5 [PATCH] zfcp: fix incorrect usage of fsf_req_list_lock 
=================================
  [ INFO: inconsistent lock state ]
  ---------------------------------
  inconsistent {in-hardirq-W} -> {hardirq-on-W} usage.
  swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
   (&adapter->fsf_req_list_lock){++..}, at: [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178
  {in-hardirq-W} state was registered at:
    [<000000000005fb0c>] __lock_acquire+0xad8/0xed0
    [<00000000000604ae>] lock_acquire+0x9a/0xc8
    [<000000000035a326>] _spin_lock+0x4e/0x68
    [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178
    [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430
    [<0000000000219dd4>] tiqdio_thinint_handler+0xd20/0x213c
    [<000000000020229a>] do_adapter_IO+0xb2/0xc0
    [<0000000000206f32>] do_IRQ+0x136/0x16c
    [<0000000000020462>] io_no_vtime+0x16/0x1c
    [<0000000000019432>] cpu_idle+0x222/0x250
  irq event stamp: 129220
  hardirqs last  enabled at (129220): [<00000000000411e6>] tasklet_hi_action+0x5a/0x19c
  hardirqs last disabled at (129219): [<00000000000411c0>] tasklet_hi_action+0x34/0x19c
  softirqs last  enabled at (129212): [<0000000000040b62>] __do_softirq+0x13a/0x180
  softirqs last disabled at (129217): [<000000000001fd58>] do_softirq+0xec/0xf0

  other info that might help us debug this:
  no locks held by swapper/0.

  stack backtrace:
  00000000012bb670 0000000000000002 0000000000000000 00000000012bb780
         00000000012bb6e8 0000000000399122 0000000000399122 0000000000016b0a
         0000000000000000 0000000000000000 0000000000000000 00000000004660e8
         0000000000000000 000000000000000d 00000000012bb6e0 00000000012bb758
         0000000000368b90 0000000000016b0a 00000000012bb6e0 00000000012bb730
  Call Trace:
  ([<0000000000016a26>] show_trace+0x76/0xdc)
   [<0000000000016b2c>] show_stack+0xa0/0xd0
   [<0000000000016b8a>] dump_stack+0x2e/0x3c
   [<000000000005e3da>] print_usage_bug+0x27e/0x290
   [<000000000005ea9c>] mark_lock+0x6b0/0x6c0
   [<000000000005f33e>] __lock_acquire+0x30a/0xed0
   [<00000000000604ae>] lock_acquire+0x9a/0xc8
   [<000000000035a326>] _spin_lock+0x4e/0x68
   [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178
   [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430
   [<0000000000217bd2>] tiqdio_tl+0xd02/0x2120
   [<000000000004123a>] tasklet_hi_action+0xae/0x19c
   [<0000000000040ae4>] __do_softirq+0xbc/0x180
   [<000000000001fd58>] do_softirq+0xec/0xf0
   [<0000000000040c38>] irq_exit+0x90/0xa8
   [<0000000000206f40>] do_IRQ+0x144/0x16c
   [<0000000000020462>] io_no_vtime+0x16/0x1c
   [<0000000000019432>] cpu_idle+0x222/0x250
  ([<0000000000019416>] cpu_idle+0x206/0x250)
   [<000000000001405a>] rest_init+0x5a/0x68
   [<0000000000536998>] start_kernel+0x39c/0x3dc
   [<0000000000013046>] _stext+0x46/0x1000

Fix incorrect usage of fsf_req_list_lock. It's used in tasklet context
(irqs on) as well as in irq context. Therefore use the spin_lock_irqsave
variant to avoid deadlocks.

Acked-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 21:25:20 -07:00
..
acorn [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
acpi [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
amba [PATCH] 64bit resource: fix up printks for resources in misc drivers 2006-06-27 09:23:59 -07:00
atm [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
base Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-06-30 15:39:30 -07:00
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-03 15:28:34 -07:00
bluetooth Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
cdrom [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-03 15:28:34 -07:00
clocksource [PATCH] GTOD: add scx200 HRT clocksource 2006-06-26 09:58:21 -07:00
connector [PATCH] connector-exports 2006-06-23 07:43:06 -07:00
cpufreq Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
crypto [CRYPTO] padlock: Rearrange context structure to reduce code size 2006-06-26 17:34:39 +10:00
dio
dma [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
edac [PATCH] EDAC: fix module names quoted in sysfs 2006-07-01 09:55:58 -07:00
eisa Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
fc4 [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
firmware Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
hwmon Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
i2c [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
ide [PATCH] lockdep: annotate on-stack completions 2006-07-03 15:27:09 -07:00
ieee1394 [PATCH] lockdep: annotate ieee1394 skb-queue-head locking 2006-07-03 15:27:08 -07:00
infiniband [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
input [PATCH] lockdep: annotate serio 2006-07-03 15:27:07 -07:00
isdn [PATCH] irq-flags: isdn: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
leds Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
macintosh [POWERPC] Add new interrupt mapping core and change platforms to use it 2006-07-03 21:36:01 +10:00
mca
md [PATCH] lockdep: annotate blkdev nesting 2006-07-03 15:27:10 -07:00
media [PATCH] irq-flags: media: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
message [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
mfd [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
misc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
mmc [PATCH] lockdep: annotate on-stack completions, mmc 2006-07-03 15:27:10 -07:00
mtd Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-03 15:28:34 -07:00
nubus Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
oprofile [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
parisc [PATCH] irq-flags: PARISC: Use the new IRQF_ constants 2006-07-02 13:58:52 -07:00
parport [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
pci [PATCH] irq-flags: pci: Use the new IRQF_ constants 2006-07-02 13:58:52 -07:00
pcmcia Merge branch 'genirq' of master.kernel.org:/home/rmk/linux-2.6-arm 2006-07-02 15:07:45 -07:00
pnp [PATCH] PNPACPI: support shareable interrupts 2006-07-03 15:26:58 -07:00
rapidio Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
rtc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
s390 [PATCH] zfcp: fix incorrect usage of fsf_req_list_lock 2006-07-03 21:25:20 -07:00
sbus [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
scsi [PATCH] lockdep: annotate on-stack completions 2006-07-03 15:27:09 -07:00
serial Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-03 15:28:34 -07:00
sh
sn [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
spi [PATCH] lockdep: annotate on-stack completions 2006-07-03 15:27:09 -07:00
tc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
telephony Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6 2006-06-29 14:19:21 -07:00
usb [PATCH] lockdep: annotate USBFS 2006-07-03 15:27:08 -07:00
video Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-03 15:28:34 -07:00
w1 [PATCH] connector-exports 2006-06-23 07:43:06 -07:00
zorro Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
Kconfig [I/OAT]: DMA memcpy subsystem 2006-06-17 21:18:43 -07:00
Makefile [PATCH] Time: i386 Clocksource Drivers 2006-06-26 09:58:21 -07:00