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Message-ID: <54F9BD90.60301@oracle.com>
Date: Fri, 06 Mar 2015 09:45:36 -0500
From: Sasha Levin <sasha.levin@...cle.com>
To: Rafael David Tinoco <inaddy@...ntu.com>,
Ingo Molnar <mingo@...nel.org>
CC: Peter Zijlstra <peterz@...radead.org>,
LKML <linux-kernel@...r.kernel.org>,
Dave Jones <davej@...emonkey.org.uk>,
Davidlohr Bueso <dave@...olabs.net>, jason.low2@...com,
Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: sched: softlockups in multi_cpu_stop
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.
Thanks,
Sasha
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