From: Darren Hart <dvhart@linux.intel.com>
To: linux-rt-users <linux-rt-users@vger.kernel.org>
Subject: Re: 3.8.4-rt2 panic in migrate_task_rq_fair
Date: Fri, 05 Apr 2013 10:17:36 -0700 [thread overview]
Message-ID: <515F0730.9000006@linux.intel.com> (raw)
In-Reply-To: <515F000D.9090500@linux.intel.com>
On 04/05/2013 09:47 AM, Darren Hart wrote:
> Running on a UEFI 32bit Atom E6xx system I see the following panic after
> several minutes running the following cyclictest command.
>
> root@sys940x:~# cyclictest -p 50 -d 10m -t -q
Whoops, I should have used "-D 10m", but the following is of course
still a problem.
--
Darren
> # /dev/cpu_dma_latency set to 0us
>
> BUG: unable to handle kernel paging request at fffffff4
> IP: [<c106a41c>] migrate_task_rq_fair+0x4c/0x100
> *pde = 0198f067 *pte = 00000000
> Oops: 0000 [#1] PREEMPT SMP
> Modules linked in:
> Pid: 649, comm: cyclictest Not tainted 3.8.4-rt2-yocto-preempt-rt #1
> EIP: 0060:[<c106a41c>] EFLAGS: 00010046 CPU: 0
> EIP is at migrate_task_rq_fair+0x4c/0x100
> EAX: 00000000 EBX: deec43f0 ECX: 00000000 EDX: 00000000
> ESI: dde8f948 EDI: c1983900 EBP: dee9fe58 ESP: dee9fe40
> DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
> CR0: 80050033 CR2: fffffff4 CR3: 1ef64000 CR4: 000007d0
> DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
> DR6: ffff0ff0 DR7: 00000400
> Process cyclictest (pid: 649, ti=dee9e000 task=def74170 task.ti=dee9e000)
> Stack:
> c197f060 00000000 00000000 00000000 deec43f0 00000001 dee9fec0 c1064ec5
> c10380ce 00000010 dee9fe7c c1065894 de699ef0 619b7c30 00000000 dee9feac
> 00000010 00000000 dee9fea0 c1037f76 00000000 def74170 00000001 dee9ff28
> Call Trace:
> [<c1064ec5>] set_task_cpu+0x55/0x1b0
> [<c10380ce>] ? unpin_current_cpu+0xe/0x70
> [<c1065894>] ? migrate_enable+0xc4/0x1c0
> [<c1037f76>] ? pin_current_cpu+0x76/0x1c0
> [<c106713c>] try_to_wake_up+0x18c/0x300
> [<c10672ef>] wake_up_process+0x1f/0x40
> [<c10595ed>] hrtimer_wakeup+0x1d/0x30
> [<c10599cb>] __run_hrtimer+0x9b/0x260
> [<c10595d0>] ? update_rmtp+0x90/0x90
> [<c105ad62>] hrtimer_interrupt+0x272/0x320
> [<c1645ed5>] smp_apic_timer_interrupt+0x55/0x87
> [<c163f75d>] apic_timer_interrupt+0x2d/0x34
> [<c163f48c>] ? resume_kernel+0x44/0x44
> Code: 83 74 01 00 00 74 48 8d 4e 58 e8 94 2e 2c 00 89 45 f0 89 55 f4 8b
> 8b 78 01 00 00 8b 93 74 01 00 00 29 55 f0 19 4d f4 31 c0 31 d2 <8b> 49
> f4 0b 4d f0 75 2c 89 83 74 01 00 00 89 93 78 01 00 00 8b
>
> EIP: [<c106a41c>] migrate_task_rq_fair+0x4c/0x100 SS:ESP 0068:dee9fe40
> CR2: 00000000fffffff4
> ---[ end trace 0000000000000002 ]---
> Kernel panic - not syncing: Fatal exception in interrupt
>
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Technical Lead - Linux Kernel
next prev parent reply other threads:[~2013-04-05 17:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-05 16:47 3.8.4-rt2 panic in migrate_task_rq_fair Darren Hart
2013-04-05 17:17 ` Darren Hart [this message]
2013-04-26 13:21 ` Sebastian Andrzej Siewior
2013-04-29 23:00 ` Darren Hart
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