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Date: Sun, 7 Apr 2013 11:20:10 +0200 (CEST) From: Thomas Gleixner <tglx@...utronix.de> To: "Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com> cc: Dave Hansen <dave@...1.net>, LKML <linux-kernel@...r.kernel.org>, Dave Jones <davej@...hat.com>, dhillf@...il.com, Peter Zijlstra <peterz@...radead.org> Subject: Re: kernel BUG at kernel/smpboot.c:134! On Sat, 6 Apr 2013, Thomas Gleixner wrote: > This is Hillfs proposed patch: > > > --- a/kernel/kthread.c Sat Jan 19 13:03:52 2013 > > +++ b/kernel/kthread.c Sat Jan 19 13:17:54 2013 > > @@ -306,6 +306,7 @@ struct task_struct *kthread_create_on_cp > > return p; > > set_bit(KTHREAD_IS_PER_CPU, &to_kthread(p)->flags); > > to_kthread(p)->cpu = cpu; > > + __kthread_bind(p, cpu); > > /* Park the thread to get it out of TASK_UNINTERRUPTIBLE state */ > > kthread_park(p); > > return p; > > That's bogus. Simply because when we create the thread then the thread And it's even more bogus because the cpu to which we would bind in kthread_create_on_cpu() is not yet online. Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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