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Subject2.4.9-ac5: acpi BUG
Andy and whoever else cares,

This is similar (identical?) to previous failures I've had. This is
100% repeatable, even with acpi=off. The system is a K6-II. I have an
almost identical kernel running on my PII Omnibook with no such


ksymoops 2.4.1 on i586 2.4.3-ac3. Options used
-V (default)
-K (specified)
-L (specified)
-o /packages/linux/2.4.9-ac5/k6/lib/modules/2.4.9-ac5 (specified)
-m /packages/linux/2.4.9-ac5/k6/boot/ (specified)

No modules in ksyms, skipping objects
kernel BUG at sched.c:712!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0113e2d>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010082
eax: 0000001b ebx: c1218000 ecx: 00000001 edx: 00000ae6
esi: c1219dc0 edi: c0190340 ebp: c1219d84 esp: c1219d58
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 1, stackpage=c1219000)
Stack: c024b86f 000002c8 c024b856 c1219dc0 c1218000 00000000 c1218000 00000711
c1218000 c1219dc0 c0190340 c1219e7c c0106f45 00000711 c0189b10 c7fa2540
c1219dc0 c0190340 c1219e7c 00000008 00000018 00000018 00000078 c01054ed
Call Trace: [<c0190340>] [<c0106f45>] [<c0189b10>] [<c0190340>] [<c01054ed>]
[<c0189c5e>] [<c0189b10>] [<c0189d9c>] [<c019039a>] [<c0190340>] [<c018fc2f>]
[<c018fba8>] [<c0190cdb>] [<c01895fc>] [<c0108329>] [<c01895f0>] [<c01084b6>]
[<c010a6c4>] [<c018973a>] [<c0192d0a>] [<c01927ed>] [<c0192447>] [<c019151d>]
[<c0190efe>] [<c01903c5>] [<c0190360>] [<c018faa7>] [<c018c830>] [<c01a1b15>]
[<c0105000>] [<c0105053>] [<c0105000>] [<c01054f6>] [<c0105040>]
Code: 0f 0b 83 c4 0c 8d 65 f4 5b 5e 5f 5d c3 8d b6 00 00 00 00 8b

>>EIP; c0113e2d <schedule+5d/400> <=====
Trace; c0190340 <acpi_ev_global_lock_thread+0/20>
Trace; c0106f45 <reschedule+5/10>
Trace; c0189b10 <acpi_os_queue_exec+0/e0>
Trace; c0190340 <acpi_ev_global_lock_thread+0/20>
Trace; c01054ed <kernel_thread+1d/30>
Trace; c0189c5e <acpi_os_schedule_exec+6e/120>
Trace; c0189b10 <acpi_os_queue_exec+0/e0>
Trace; c0189d9c <acpi_os_queue_for_execution+8c/160>
Trace; c019039a <acpi_ev_global_lock_handler+3a/50>
Trace; c0190340 <acpi_ev_global_lock_thread+0/20>
Trace; c018fc2f <acpi_ev_fixed_event_dispatch+3f/d0>
Trace; c018fba8 <acpi_ev_fixed_event_detect+58/a0>
Trace; c0190cdb <acpi_ev_sci_handler+1b/30>
Trace; c01895fc <acpi_irq+c/10>
Trace; c0108329 <handle_IRQ_event+39/80>
Trace; c01895f0 <acpi_irq+0/10>
Trace; c01084b6 <do_IRQ+56/a0>
Trace; c010a6c4 <call_do_IRQ+5/11>
Trace; c018973a <acpi_os_out16+a/10>
Trace; c0192d0a <acpi_hw_low_level_write+19a/1b0>
Trace; c01927ed <acpi_hw_register_write+9d/260>
Trace; c0192447 <acpi_hw_register_bit_access+2e7/3f0>
Trace; c019151d <acpi_enable_event+6d/c0>
Trace; c0190efe <acpi_install_fixed_event_handler+7e/a0>
Trace; c01903c5 <acpi_ev_init_global_lock_handler+15/30>
Trace; c0190360 <acpi_ev_global_lock_handler+0/50>
Trace; c018faa7 <acpi_ev_initialize+47/60>
Trace; c018c830 <acpi_enable_subsystem+60/b0>
Trace; c01a1b15 <acpi_init+135/180>
Trace; c0105000 <_stext+0/0>
Trace; c0105053 <init+13/140>
Trace; c0105000 <_stext+0/0>
Trace; c01054f6 <kernel_thread+26/30>
Trace; c0105040 <init+0/140>
Code; c0113e2d <schedule+5d/400>
00000000 <_EIP>:
Code; c0113e2d <schedule+5d/400> <=====
0: 0f 0b ud2a <=====
Code; c0113e2f <schedule+5f/400>
2: 83 c4 0c add $0xc,%esp
Code; c0113e32 <schedule+62/400>
5: 8d 65 f4 lea 0xfffffff4(%ebp),%esp
Code; c0113e35 <schedule+65/400>
8: 5b pop %ebx
Code; c0113e36 <schedule+66/400>
9: 5e pop %esi
Code; c0113e37 <schedule+67/400>
a: 5f pop %edi
Code; c0113e38 <schedule+68/400>
b: 5d pop %ebp
Code; c0113e39 <schedule+69/400>
c: c3 ret
Code; c0113e3a <schedule+6a/400>
d: 8d b6 00 00 00 00 lea 0x0(%esi),%esi
Code; c0113e40 <schedule+70/400>
13: 8b 00 mov (%eax),%eax

<0>Kernel panic: Aiee, killing interrupt handler!
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