From: Borislav Petkov <bp@alien8.de>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>,
Dave Hansen <dave@sr71.net>, LKML <linux-kernel@vger.kernel.org>,
Dave Jones <davej@redhat.com>,
dhillf@gmail.com, Peter Zijlstra <peterz@infradead.org>
Subject: Re: kernel BUG at kernel/smpboot.c:134!
Date: Sun, 7 Apr 2013 11:50:26 +0200 [thread overview]
Message-ID: <20130407095025.GA31307@pd.tnic> (raw)
In-Reply-To: <alpine.LFD.2.02.1304071119100.21884@ionos>
On Sun, Apr 07, 2013 at 11:20:10AM +0200, Thomas Gleixner wrote:
> And it's even more bogus because the cpu to which we would bind in
> kthread_create_on_cpu() is not yet online.
In case you guys are wondering about reproducibility, I saw the same
BUG_ON yesterday on a 32-bit atom smp qemu guest too (don't ask why?
:-))
And yes, this was without kvm (software emulation only in qemu).
[ 0.395000] ------------[ cut here ]------------
[ 0.395000] kernel BUG at kernel/smpboot.c:134!
[ 0.395000] invalid opcode: 0000 [#1] PREEMPT SMP
[ 0.395000] Modules linked in:
[ 0.395000] Pid: 13, comm: ksoftirqd/1 Not tainted 3.9.0-rc5+ #31 Bochs Bochs
[ 0.395000] EIP: 0060:[<c106542c>] EFLAGS: 00000202 CPU: 0
[ 0.395000] EIP is at smpboot_thread_fn+0x20c/0x260
[ 0.395000] EAX: 00000000 EBX: f60ba430 ECX: 00000000 EDX: 00000001
[ 0.395000] ESI: f60024f0 EDI: c1736480 EBP: f60c1f24 ESP: f60c1f04
[ 0.395000] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 0.395000] CR0: 8005003b CR2: ffe17000 CR3: 01943000 CR4: 000006e0
[ 0.395000] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 0.395000] DR6: 00000000 DR7: 00000000
[ 0.395000] Process ksoftirqd/1 (pid: 13, ti=f60c0000 task=f60ba430 task.ti=f60c0000)
[ 0.395000] Stack:
[ 0.395000] f60ba430 00000001 00000000 f60c1f24 c105c49d f6083e7c f60024f0 c1065220
[ 0.395000] f60c1fac c105c745 00000001 00000001 f60024f0 00000000 c1510303 dead4ead
[ 0.395000] ffffffff ffffffff c1b510ac c1c28450 00000000 c167e791 00000000 c151744f
[ 0.395000] Call Trace:
[ 0.395000] [<c105c49d>] ? __kthread_parkme+0x2d/0x70
[ 0.395000] [<c1065220>] ? lg_lock_init+0x20/0x20
[ 0.395000] [<c105c745>] kthread+0x95/0xa0
[ 0.395000] [<c1510303>] ? dump_pagetable+0xa/0x101
[ 0.395000] [<c151744f>] ? wait_for_common+0xcf/0x110
[ 0.395000] [<c1060000>] ? __remove_hrtimer+0x90/0xa0
[ 0.395000] [<c151a477>] ret_from_kernel_thread+0x1b/0x28
[ 0.395000] [<c105c6b0>] ? __init_kthread_worker+0x60/0x60
[ 0.395000] Code: 0f a3 02 19 d2 85 d2 0f 95 c2 0f b6 d2 ff d1 89 f0 e8 69 25 0b 00 8d 64 24 14 31 c0 5b 5e 5f 5d c3 e8 d9 2b 4b 00 e9 68
fe ff ff <0f> 0b 66 90 e8 cb 2b 4b 00 e9 ac fe ff ff 8d b6 00 00 00 00 e8
[ 0.395000] EIP: [<c106542c>] smpboot_thread_fn+0x20c/0x260 SS:ESP 0068:f60c1f04
[ 0.403466] ---[ end trace f5696bc4e08aa88f ]---
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
next prev parent reply other threads:[~2013-04-07 9:50 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-05 21:43 kernel BUG at kernel/smpboot.c:134! Dave Hansen
2013-04-06 7:12 ` Srivatsa S. Bhat
2013-04-06 8:31 ` Thomas Gleixner
2013-04-07 9:20 ` Thomas Gleixner
2013-04-07 9:50 ` Borislav Petkov [this message]
2013-04-08 9:24 ` Thomas Gleixner
2013-04-08 11:55 ` Borislav Petkov
2013-04-08 12:17 ` Thomas Gleixner
2013-04-09 14:38 ` [PATCH] kthread: Prevent unpark race which puts threads on the wrong cpu Thomas Gleixner
2013-04-09 15:55 ` Dave Hansen
2013-04-09 18:43 ` Thomas Gleixner
2013-04-09 19:30 ` Thomas Gleixner
2013-04-09 20:38 ` Dave Hansen
2013-04-09 20:54 ` Dave Hansen
2013-04-10 8:29 ` Thomas Gleixner
2013-04-10 10:51 ` Thomas Gleixner
2013-04-10 19:41 ` Dave Hansen
2013-04-11 10:19 ` Thomas Gleixner
2013-04-11 10:48 ` Srivatsa S. Bhat
2013-04-11 11:43 ` Srivatsa S. Bhat
2013-04-11 11:59 ` Srivatsa S. Bhat
2013-04-11 12:51 ` Thomas Gleixner
2013-04-11 12:54 ` Thomas Gleixner
2013-04-11 13:46 ` Thomas Gleixner
2013-04-11 18:07 ` Dave Hansen
2013-04-11 19:48 ` Thomas Gleixner
2013-04-10 14:03 ` [PATCH] CPU hotplug, smpboot: Fix crash in smpboot_thread_fn() Srivatsa S. Bhat
2013-04-11 8:10 ` Thomas Gleixner
2013-04-11 10:19 ` Srivatsa S. Bhat
2013-04-11 19:16 ` [PATCH] kthread: Prevent unpark race which puts threads on the wrong cpu Srivatsa S. Bhat
2013-04-11 20:47 ` Thomas Gleixner
2013-04-11 21:19 ` Srivatsa S. Bhat
2013-04-12 10:59 ` Thomas Gleixner
2013-04-12 11:26 ` Srivatsa S. Bhat
2013-04-15 19:49 ` Dave Hansen
2013-04-12 10:41 ` Peter Zijlstra
2013-04-12 12:32 ` [tip:core/urgent] " tip-bot for Thomas Gleixner
2014-09-23 0:09 kernel BUG at kernel/smpboot.c:134! Brian Norris
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