illegal sleeping function call on shutdown (was Re: 2.5.70-mjb2)

Ed L Cashin (ecashin@uga.edu)
Thu, 12 Jun 2003 19:59:05 -0400

On Thu, Jun 12, 2003 at 07:53:26AM -0700, Martin J. Bligh wrote:
...
> I'd be very interested in feedback from anyone willing to test on any
> platform, however large or small.

On shutdown -h, I see the stack trace below before power
off. This is a Dell Poweredge 4400 with two 900MHz cpus.
I know that in the past, combining SMP and APM has been a
no-no -- don't know if that's what's going on.

I see this with 2.5.70-mm4, too, btw. At least it's very
similar: starts with close and produces a sleeping function
warning.

More system details are at URL below:

http://www.cs.uga.edu/~cashin/temp/mjb2-bt.txt

Synchronizing SCSI caches:
Shutting down devices
Power down.
acpi_power_off called
Debug: sleeping function called from illegal context at include/asm/semaphore.h:121
Call Trace:
[<c011e033>] __might_sleep+0x4f/0x53
[<c01fcecf>] acpi_os_wait_semaphore+0xff/0x1ec
[<c0222395>] acpi_ut_acquire_mutex+0xd5/0x170
[<c0210d27>] acpi_hw_clear_acpi_status+0x57/0xe0
[<c0211b99>] acpi_enter_sleep_state+0xcd/0x2a8
[<c0224fd1>] Letext+0x21/0x28
[<c011502a>] machine_power_off+0xe/0x12
[<c012b23c>] sys_reboot+0x1b0/0x2c8
[<c011b7c7>] wake_up_process_kick+0xf/0x14
[<c01289bb>] kill_proc_info+0x37/0x4c
[<c0128aa2>] kill_something_info+0xd2/0xf0
[<c012a05d>] sys_kill+0x49/0x54
[<c014dfec>] __fput+0xc0/0xe4
[<c014df27>] fput+0x17/0x1c
[<c014cb7e>] filp_close+0x96/0xa4
[<c014cbe1>] sys_close+0x55/0x6c
[<c010aa73>] syscall_call+0x7/0xb

hwsleep-0257 [35] acpi_enter_sleep_state: Entering sleep state [S5]

-- 
--Ed L Cashin            |   PGP public key:
  ecashin@uga.edu        |   http://noserose.net/e/pgp/
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