From: Sasha Levin <sasha.levin@oracle.com>
To: Rafael David Tinoco <inaddy@ubuntu.com>, Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Dave Jones <davej@codemonkey.org.uk>,
Davidlohr Bueso <dave@stgolabs.net>,
jason.low2@hp.com, Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: sched: softlockups in multi_cpu_stop
Date: Fri, 06 Mar 2015 10:46:30 -0500 [thread overview]
Message-ID: <54F9CBD6.1030300@oracle.com> (raw)
In-Reply-To: <54F9BD90.60301@oracle.com>
On 03/06/2015 09:45 AM, Sasha Levin wrote:
> On 03/06/2015 09:34 AM, Rafael David Tinoco wrote:
>> Are you sure about this ? I have a core dump locked on the same place
>> (state machine for powering cpu down for the task swap) from a 3.13 (+
>> upstream patches) and this commit wasn't backported yet.
>
> bisect took me to that same commit twice, and I'm running a -next with that
> commit reverted and not seeing those hangs anymore.
>
> I also didn't see the hang up until a month or so ago (which matches with that
> commit date), and definitely not back in 3.13.
I just remembered that I was seeing something similar back then, which was fixed:
http://lists.openwall.net/linux-kernel/2014/05/12/725
Thanks,
Sasha
next prev parent reply other threads:[~2015-03-06 15:47 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-02 7:45 sched: softlockups in multi_cpu_stop Sasha Levin
[not found] ` <CAMiJ5CVWvUhGK=MWYB_CTNs901p=jsT4i5gkWTaHih7qdQdkFQ@mail.gmail.com>
2015-03-04 5:44 ` Rafael David Tinoco
2015-03-06 11:27 ` Sasha Levin
2015-03-06 12:32 ` Ingo Molnar
2015-03-06 14:34 ` Rafael David Tinoco
2015-03-06 14:45 ` Sasha Levin
2015-03-06 15:46 ` Sasha Levin [this message]
2015-03-06 17:19 ` Davidlohr Bueso
2015-03-06 18:02 ` Sasha Levin
2015-03-06 21:59 ` Sasha Levin
2015-03-06 18:57 ` Jason Low
2015-03-06 19:05 ` Linus Torvalds
2015-03-06 19:20 ` Davidlohr Bueso
2015-03-06 19:32 ` Linus Torvalds
2015-03-06 19:45 ` Davidlohr Bueso
2015-03-06 19:55 ` Davidlohr Bueso
2015-03-06 20:00 ` Davidlohr Bueso
2015-03-06 21:42 ` Linus Torvalds
2015-03-06 19:29 ` Jason Low
2015-03-06 21:12 ` Jason Low
2015-03-06 21:24 ` Linus Torvalds
2015-03-07 1:53 ` Jason Low
2015-03-06 22:15 ` Davidlohr Bueso
2015-03-07 1:55 ` Ming Lei
2015-03-07 2:07 ` Davidlohr Bueso
2015-03-07 2:10 ` Ming Lei
2015-03-07 2:26 ` Davidlohr Bueso
2015-03-07 2:29 ` Davidlohr Bueso
2015-03-07 2:55 ` Ming Lei
2015-03-07 3:10 ` Davidlohr Bueso
2015-03-07 3:19 ` Ming Lei
2015-03-07 3:41 ` Davidlohr Bueso
2015-03-07 2:56 ` Jason Low
2015-03-07 3:08 ` Ming Lei
2015-03-07 3:10 ` Davidlohr Bueso
2015-03-07 3:17 ` Jason Low
2015-03-07 3:39 ` Ming Lei
2015-03-07 3:53 ` Jason Low
2015-03-07 1:58 ` Jason Low
2015-03-07 4:31 ` Jason Low
2015-03-07 4:44 ` Davidlohr Bueso
2015-03-07 6:45 ` Jason Low
2015-03-07 5:54 ` Ming Lei
2015-03-07 6:57 ` Jason Low
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