From: Christian Hoffmann <email@christianhoffmann.info>
To: Josh Boyer <jwboyer@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: Re: scheduling while atomic: swapper/0/0x10000002
Date: Sat, 10 Sep 2011 19:17:53 +0200 [thread overview]
Message-ID: <4E6B9BC1.4060000@christianhoffmann.info> (raw)
In-Reply-To: <CA+5PVA4nRVN0cia9R49=T5xy1inxQLSjDcv1yn4+UFppufRiYA@mail.gmail.com>
On 09/10/2011 06:44 PM, Josh Boyer wrote:
> On Sat, Sep 10, 2011 at 9:29 AM, Christian Hoffmann
> <email@christianhoffmann.info> wrote:
>> Hi,
>>
>> I can see the following bug report in the kernel 3.1 rc5 dmesg:
>>
>> [ 0.000008] BUG: scheduling while atomic: swapper/0/0x10000002
>> [ 0.000012] Modules linked in:
>> [ 0.000015] Pid: 0, comm: swapper Not tainted 3.1.0-rc5-ch+ #2
>> [ 0.000017] Call Trace:
>> [ 0.000024] [<ffffffff81052cb6>] __schedule_bug+0x66/0x70
>> [ 0.000028] [<ffffffff8160329d>] schedule+0x99d/0x9b0
>> [ 0.000032] [<ffffffff81cf22b5>] ? pidmap_init+0x9f/0xdf
>> [ 0.000035] [<ffffffff8105cc7a>] __cond_resched+0x2a/0x40
>> [ 0.000038] [<ffffffff81603541>] _cond_resched+0x31/0x40
>> [ 0.000041] [<ffffffff8115fb63>] kmem_cache_alloc_trace+0x53/0x160
>> [ 0.000043] [<ffffffff81cf22b5>] pidmap_init+0x9f/0xdf
>> [ 0.000046] [<ffffffff81cd9b8a>] start_kernel+0x333/0x3c8
>> [ 0.000049] [<ffffffff81cd9347>] x86_64_start_reservations+0x132/0x136
>> [ 0.000051] [<ffffffff81cd944c>] x86_64_start_kernel+0x101/0x110
>
> Paul McKenney has a patch that solves this oops. You can find it here:
>
> http://marc.info/?l=linux-kernel&m=131537669921538&w=2
>
> We had discussed getting this into 3.1, but apparently that didn't
> happen (yet?). I thought it had been sent upstream with my tested-by,
> but I don't see it included in Linus' tree.
Hi,
the patch up there doesn't seem to apply cleanly to 3.1 rc5, as it
misses the rename done in "[PATCH tip/core/rcu 23/55] rcu: Simplify
quiescent-state accounting"
(http://marc.info/?l=linux-kernel&m=131537654621392&w=2).
Kind regards,
Chris
next prev parent reply other threads:[~2011-09-10 17:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-10 13:29 scheduling while atomic: swapper/0/0x10000002 Christian Hoffmann
2011-09-10 16:44 ` Josh Boyer
2011-09-10 17:17 ` Christian Hoffmann [this message]
2011-09-10 19:58 ` Paul E. McKenney
2011-09-12 16:43 ` Christian Hoffmann
2011-09-12 17:16 ` Paul E. McKenney
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