From: Thomas Gleixner <tglx@linutronix.de>
To: Borislav Petkov <bp@alien8.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: Mon, 8 Apr 2013 14:17:50 +0200 (CEST) [thread overview]
Message-ID: <alpine.LFD.2.02.1304081415570.21884@ionos> (raw)
In-Reply-To: <20130408115553.GA4395@pd.tnic>
On Mon, 8 Apr 2013, Borislav Petkov wrote:
> On Mon, Apr 08, 2013 at 11:24:14AM +0200, Thomas Gleixner wrote:
> > + /* Rebind ourself to the target cpu */
> > + if (test_bit(KTHREAD_IS_PER_CPU, &self->flags)) {
> > + set_cpus_allowed_ptr(currrent, cpumask_of(self->cpu));
>
> "currrent" is a typo, I fixed it up to the obvious "current" so that it
> builds.
Bah.
> [ 1.640000] WARNING: at kernel/sched/core.c:963 set_task_cpu+0x12c/0x280()
> [ 1.640000] Hardware name: Bochs
> [ 1.640000] Modules linked in:
> [ 1.640000] Pid: 8, comm: migration/0 Not tainted 3.9.0-rc5+ #5
Hmm, crap migration thread trying to migrate itself via stomp
machine. Not really a brilliant idea.
/me goes back to drawing board.
> [ 1.640000] Call Trace:
> [ 1.640000] [<c1035633>] warn_slowpath_common+0x73/0xb0
> [ 1.640000] [<c106a6cc>] ? set_task_cpu+0x12c/0x280
> [ 1.640000] [<c106a6cc>] ? set_task_cpu+0x12c/0x280
> [ 1.640000] [<c1035693>] warn_slowpath_null+0x23/0x30
> [ 1.640000] [<c106a6cc>] set_task_cpu+0x12c/0x280
> [ 1.640000] [<c1068e2b>] ? update_rq_clock+0x3b/0x70
> [ 1.640000] [<c1068ee1>] ? dequeue_task+0x81/0xc0
> [ 1.640000] [<c106a922>] __migrate_task+0x102/0x140
> [ 1.640000] [<c106a960>] ? __migrate_task+0x140/0x140
> [ 1.640000] [<c106a982>] migration_cpu_stop+0x22/0x30
> [ 1.640000] [<c10a0a88>] cpu_stopper_thread+0x68/0x130
> [ 1.640000] [<c106ea11>] ? sched_clock_cpu+0xf1/0x180
> [ 1.640000] [<c106a20d>] ? sub_preempt_count+0x4d/0xb0
> [ 1.640000] [<c106eaee>] ? local_clock+0x4e/0x60
> [ 1.640000] [<c108cf4a>] ? trace_hardirqs_off_caller+0x1a/0x110
> [ 1.640000] [<c108d22d>] ? put_lock_stats.isra.17+0xd/0x30
> [ 1.640000] [<c1512b25>] ? _raw_spin_unlock_irqrestore+0x55/0x70
> [ 1.640000] [<c1512b0b>] ? _raw_spin_unlock_irqrestore+0x3b/0x70
> [ 1.640000] [<c1063f06>] smpboot_thread_fn+0x176/0x260
> [ 1.640000] [<c1063d90>] ? lg_lock_init+0x20/0x20
> [ 1.640000] [<c105b305>] kthread+0x95/0xa0
> [ 1.640000] [<c1510303>] ? schedule_hrtimeout_range_clock+0x163/0x170
> [ 1.640000] [<c151077f>] ? wait_for_common+0xcf/0x110
> [ 1.640000] [<c1060000>] ? hrtimer_run_pending+0x110/0x110
> [ 1.640000] [<c15137b7>] ret_from_kernel_thread+0x1b/0x28
> [ 1.640000] [<c105b270>] ? __kthread_parkme+0xa0/0xa0
next prev parent reply other threads:[~2013-04-08 12:18 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
2013-04-08 9:24 ` Thomas Gleixner
2013-04-08 11:55 ` Borislav Petkov
2013-04-08 12:17 ` Thomas Gleixner [this message]
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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