> 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
You probably need this;
Index: linux-2.5.66/drivers/acpi/osl.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.66/drivers/acpi/osl.c,v
retrieving revision 1.1.1.1
diff -u -p -B -r1.1.1.1 osl.c
--- linux-2.5.66/drivers/acpi/osl.c 24 Mar 2003 23:39:26 -0000 1.1.1.1
+++ linux-2.5.66/drivers/acpi/osl.c 6 Apr 2003 22:46:04 -0000
@@ -750,7 +750,7 @@ acpi_os_wait_semaphore(
ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n", handle, units, timeout));
- if (in_atomic())
+ if (in_atomic() || irqs_disabled())
timeout = 0;
switch (timeout)
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