I'm seeing this oops on my P4 box running 2.5.66-bk12 + ACPI when
shutting it down (copied by hand):
Power down.
acpi_power_off called
Debug: sleeping function called from illegal context at
include/asm/semaphore.h: 119
Call Trace:
[<c012088a>] __might_sleep+0x5f/0x75
[<c01ffb10>] acpi_os_wait_semaphore+0xc5/0xea
[<c021440c>] acpi_ut_acquire_mutex+0x51/0x73
[<c020ab4f>] acpi_set_register+0x34/0x15d
[<c020b1f6>] acpi_enter_sleep_state+0x77/0x1ab
[<c0215d7d>] acpi_power_off+0x21/0x23
[<c011a3e5>] machine_power_off+0x10/0x13
[<c0135f7b>] sys_reboot+0x332/0x741
[<c011e010>] schedule+0x210/0x6d7
[<c0130daf>] group_send_sig_info+0x2af/0x6b6
[<c011e50d>] preempt_schedule+0x36/0x50
[<c0131384>] kill_proc_info+0x60/0x62
[<c0134346>] sys_kill+0x4d/0x51
[<c016e76b>] __fput+0xaf/0xfb
[<c016cabc>] filp_close+0x160/0x226
[<c01850cb>] sys_ioctl+0x197/0x3e8
[<c010af29>] sysenter_past_esp+0x52/0x71
This is not 100% reproducible. When using ACPI, the machine is *never*
able to properly shut it off (only APM is able to turn the machine off).
________________________________________________________________________
Linux Registered User #287198
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