From: Michael Ellerman <mpe@ellerman.id.au>
To: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: bruno@wolff.to, peterz@infrdead.org,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
jwboyer@redhat.com
Subject: Re: scheduler crash on Power
Date: Fri, 01 Aug 2014 11:53:37 +1000 [thread overview]
Message-ID: <1406858017.32701.1.camel@concordia> (raw)
In-Reply-To: <20140730072242.GA21516@us.ibm.com>
On Wed, 2014-07-30 at 00:22 -0700, Sukadev Bhattiprolu wrote:
> I am getting this crash on a Powerpc system using 3.16.0-rc7 kernel plus
> some patches related to perf (24x7 counters) that Cody Schafer posted here:
>
> https://lkml.org/lkml/2014/5/27/768
>
> I don't get the crash on an unpatched kernel though.
You mean you don't get the crash on 3.16-rc7 ?
I find it hard to believe those 24x7 patches are causing this.
> I am also attaching the debug messages that Peterz added
> here: https://lkml.org/lkml/2014/7/17/288
I don't see any FAIL messages in your log, so it looks like you're not hitting
the case that patch was looking for?
> Appreciate any debug suggestions.
Reproduce on an unpatched kernel.
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <mpe@ellerman.id.au>
To: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: peterz@infrdead.org, bruno@wolff.to, jwboyer@redhat.com,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: scheduler crash on Power
Date: Fri, 01 Aug 2014 11:53:37 +1000 [thread overview]
Message-ID: <1406858017.32701.1.camel@concordia> (raw)
In-Reply-To: <20140730072242.GA21516@us.ibm.com>
On Wed, 2014-07-30 at 00:22 -0700, Sukadev Bhattiprolu wrote:
> I am getting this crash on a Powerpc system using 3.16.0-rc7 kernel plus
> some patches related to perf (24x7 counters) that Cody Schafer posted here:
>
> https://lkml.org/lkml/2014/5/27/768
>
> I don't get the crash on an unpatched kernel though.
You mean you don't get the crash on 3.16-rc7 ?
I find it hard to believe those 24x7 patches are causing this.
> I am also attaching the debug messages that Peterz added
> here: https://lkml.org/lkml/2014/7/17/288
I don't see any FAIL messages in your log, so it looks like you're not hitting
the case that patch was looking for?
> Appreciate any debug suggestions.
Reproduce on an unpatched kernel.
cheers
next prev parent reply other threads:[~2014-08-01 1:53 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-30 7:22 scheduler crash on Power Sukadev Bhattiprolu
2014-07-30 7:22 ` Sukadev Bhattiprolu
2014-07-31 11:57 ` Dietmar Eggemann
2014-07-31 11:57 ` Dietmar Eggemann
2014-08-01 21:24 ` Sukadev Bhattiprolu
2014-08-01 21:24 ` Sukadev Bhattiprolu
2014-08-04 3:20 ` Michael Ellerman
2014-08-04 3:20 ` Michael Ellerman
2014-08-04 11:31 ` Dietmar Eggemann
2014-08-04 11:31 ` Dietmar Eggemann
2014-08-01 1:53 ` Michael Ellerman [this message]
2014-08-01 1:53 ` Michael Ellerman
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