From: Peter Zijlstra <peterz@infradead.org>
To: "Lofstedt, Marta" <marta.lofstedt@intel.com>
Cc: "intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"pasha.tatashin@oracle.com" <pasha.tatashin@oracle.com>,
"Peres, Martin" <martin.peres@intel.com>
Subject: Re: freedesktop bug id: 100548, bisected to sched/clock commit
Date: Wed, 12 Apr 2017 14:31:34 +0200 [thread overview]
Message-ID: <20170412123134.GD5680@worktop> (raw)
In-Reply-To: <CA5F6A4B62957246A95956419746064359673A8B@IRSMSX106.ger.corp.intel.com>
On Wed, Apr 12, 2017 at 12:04:00PM +0000, Lofstedt, Marta wrote:
> Hi,
>
> We have this "old" Lenovo Cantiga laptop(Intel Core 2 Duo L9400), hocked up to our i915 pre-merge CI system, that has started to give unstable results after commit:
>
> commit 7b09cc5a9debc86c903c2eff8f8a1fdef773c649
> Author: Pavel Tatashin <pasha.tatashin@oracle.com>
> Date: Wed Mar 22 16:24:17 2017 -0400
>
> sched/clock: Fix broken stable to unstable transfer
>
> The issue is describe more in detail here:
> https://bugs.freedesktop.org/show_bug.cgi?id=100548
I don't click links.
> We have reverted above patch and then issue is no longer reproducible.
> Also, note that this issue has not been reproduced on any of our other machines,
> https://intel-gfx-ci.01.org/CI/
>
> So, why is this only affecting the Core 2 Duo?
Core2 doesn't have a usable TSC and would revert to the slow path. I'll
have another look at that patch.
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next prev parent reply other threads:[~2017-04-12 12:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-12 12:04 freedesktop bug id: 100548, bisected to sched/clock commit Lofstedt, Marta
2017-04-12 12:31 ` Peter Zijlstra [this message]
2017-04-12 13:30 ` Jani Nikula
2017-04-12 14:28 ` Peter Zijlstra
2017-04-12 13:40 ` Martin Peres
2017-04-12 14:32 ` Peter Zijlstra
2017-04-12 14:49 ` Martin Peres
2017-04-12 15:50 ` Peter Zijlstra
2017-04-13 11:48 ` Peter Zijlstra
2017-04-13 12:30 ` Martin Peres
2017-04-13 13:23 ` Peter Zijlstra
2017-04-13 14:55 ` Thomas Gleixner
2017-04-18 14:10 ` Lofstedt, Marta
2017-04-18 15:53 ` Peter Zijlstra
2017-04-20 17:19 ` Peter Zijlstra
2017-04-20 19:36 ` Peter Zijlstra
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