Hi,
This looks like a tickless stuff
------------[ cut here ]------------
kernel BUG at /mnt/md0/devel/linux-git/kernel/time/tick-sched.c:168!
invalid opcode: 0000 [#1]
PREEMPT SMP
Modules linked in: rtc unix
CPU: 0
EIP: 0060:[<c0139ea0>] Not tainted VLI
EFLAGS: 00010002 (2.6.20 #53)
EIP is at tick_nohz_stop_sched_tick+0x5d/0x1d9
eax: 00000000 ebx: c6021100 ecx: 00000001 edx: c03e74e0
esi: c6022c40 edi: 00000000 ebp: c041dfac esp: c041df78
ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
Process swapper (pid: 0, ti=c041d000 task=c03e74e0 task.ti=c041d000)
Stack: 00000000 c03e7608 c6021b20 00000000 c041dfac 00000296 00000001 c602007b
c01000d8 c0451304 c6021100 c0102b42 00000000 c041dfc0 c01023b4 c602ee80
c0453ae4 c602b864 c041dfc8 c010141d c041dff8 c0421a52 c038d4da c04211ed
Call Trace:
[<c01050f9>] show_trace_log_lvl+0x1a/0x2f
[<c01051ab>] show_stack_log_lvl+0x9d/0xa5
[<c01053a0>] show_registers+0x1ed/0x32c
[<c01055f7>] die+0x118/0x22f
[<c0105787>] do_trap+0x79/0x91
[<c0106017>] do_invalid_op+0x97/0xa1
[<c0311abc>] error_code+0x7c/0x84
[<c01023b4>] cpu_idle+0x1d/0xfb
[<c010141d>] rest_init+0x37/0x3a
[<c0421a52>] start_kernel+0x459/0x461
[<00000000>] 0x0
=======================
Code: f0 ff ff 8b 40 08 a8 08 0f 85 74 01 00 00 e8 74 e7 0b 00 89 c7 bb 80 13 45 c0 e8 68 e7 0b 00 03 1c 85 00 a6 41 c0 83 3b 00 74 04 <0f> 0b eb fe 8d 45 ec e8 bf c0 ff ff 8b 4d ec 8b 5d f0 83 7e 3c
EIP: [<c0139ea0>] tick_nohz_stop_sched_tick+0x5d/0x1d9 SS:ESP 0068:c041df78
Kernel panic - not syncing: Attempted to kill the idle task!
BUG: at /mnt/md0/devel/linux-git/arch/i386/kernel/smp.c:547 smp_call_function()
[<c01050f9>] show_trace_log_lvl+0x1a/0x2f
[<c01057e0>] show_trace+0x12/0x14
[<c0105892>] dump_stack+0x16/0x18
[<c0112792>] smp_call_function+0x61/0x102
[<c0112851>] smp_send_stop+0x1e/0x31
[<c0121ae3>] panic+0x5e/0xfb
[<c012463b>] do_exit+0x7a/0x702
[<c01056e8>] die+0x209/0x22f
[<c0105787>] do_trap+0x79/0x91
[<c0106017>] do_invalid_op+0x97/0xa1
[<c0311abc>] error_code+0x7c/0x84
[<c01023b4>] cpu_idle+0x1d/0xfb
[<c010141d>] rest_init+0x37/0x3a
[<c0421a52>] start_kernel+0x459/0x461
[<00000000>] 0x0
=======================
0xc0139ea0 is in tick_nohz_stop_sched_tick (/mnt/md0/devel/linux-git/kernel/time/tick-sched.c:168).
163
164 if (need_resched())
165 goto end;
166
167 cpu = smp_processor_id();
168 BUG_ON(local_softirq_pending());
169
170 now = ktime_get();
171 /*
172 * When called from irq_exit we need to account the idle sleep time
http://www.stardust.webpages.pl/files/tbf/euridica/2.6.20-git13/boot.log
http://www.stardust.webpages.pl/files/tbf/euridica/2.6.20-git13/git-config
Regards,
Michal
--
Michal K. K. Piotrowski
LTG - Linux Testers Group (PL)
(http://www.stardust.webpages.pl/ltg/)
LTG - Linux Testers Group (EN)
(http://www.stardust.webpages.pl/linux_testers_group_en/)
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