From: Eric Dumazet <eric.dumazet@gmail.com>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Venkatesh Pallipadi <venki@google.com>,
Nikhil Rao <ncrao@google.com>,
Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>,
linux-kernel@vger.kernel.org
Subject: Re: divide error in select_task_rq_fair()
Date: Thu, 04 Nov 2010 15:37:54 +0100 [thread overview]
Message-ID: <1288881474.2659.123.camel@edumazet-laptop> (raw)
In-Reply-To: <20101104142853.GA11656@helgaas.com>
Le jeudi 04 novembre 2010 à 08:28 -0600, Bjorn Helgaas a écrit :
> On Thu, Nov 04, 2010 at 06:19:52AM +0100, Eric Dumazet wrote:
> > Le mercredi 03 novembre 2010 à 22:12 -0600, Bjorn Helgaas a écrit :
> > > Hi,
> > >
> > > With current upstream, I see the following crash at boot-time:
> > >
> > > Brought up 64 CPUs
> > > Total of 64 processors activated (289366.52 BogoMIPS).
> > > divide error: 0000 [#1] SMP
> > > last sysfs file:
> > > CPU 1
> > > Modules linked in:
> > >
> > > Pid: 2, comm: kthreadd Not tainted 2.6.37-rc1-00027-gff8b16d #271 /ProLiant DL980 G7
> > > RIP: 0010:[<ffffffff81034645>] [<ffffffff81034645>] select_task_rq_fair+0x62a/0x7a0
> > >
> > > Complete dmesg below; let me know if you need more info.
> >
> > Is the machine runs OK if you build a kernel with NR_CPUS=128 ?
>
> Nope, it fails the same way with NR_CPUS=128. Dmesg below.
Sorry, just try 256 or 512, it seems you have a pretty big machine ?
8 nodes, but only nodes from 0-3 are populated.
next prev parent reply other threads:[~2010-11-04 14:38 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-04 4:12 Bjorn Helgaas
2010-11-04 5:19 ` Eric Dumazet
2010-11-04 14:28 ` Bjorn Helgaas
2010-11-04 14:37 ` Eric Dumazet [this message]
2010-11-05 2:00 ` Bjorn Helgaas
2010-11-05 6:17 ` Eric Dumazet
2010-11-11 18:28 ` Myron Stowe
2010-11-12 6:22 ` Nikanth Karthikesan
2010-11-12 14:06 ` Myron Stowe
2010-11-14 17:36 ` Myron Stowe
2010-11-14 19:11 ` Yinghai Lu
2010-11-18 23:32 ` Myron Stowe
2010-11-22 5:25 ` [PATCH] x86, acpi: Parse all SRAT cpu entries even have cpu num limitation Yinghai Lu
2010-12-15 22:09 ` divide error in select_task_rq_fair() Venkatesh Pallipadi
2010-11-14 1:15 ` Yinghai Lu
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