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From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: Andrew Lutomirski <luto@mit.edu>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>
Subject: Re: [PATCH] drm/i915: kicking rings considered harmful
Date: Tue, 27 Sep 2011 11:57:49 +0200
Message-ID: <CAKMK7uFvG+A8EDzf7Kk_PpDUSwhq7LfujJ5gSTSRgo_STmx9qg@mail.gmail.com> (raw)
In-Reply-To: <CAObL_7FCinDjX43-aDJYC7dsC-jCx1k1e3y+T5q11=i=Vnc7UA@mail.gmail.com>

On Mon, Sep 26, 2011 at 21:07, Andrew Lutomirski <luto@mit.edu> wrote:
> On Sep 26, 2011 9:00 PM, "Daniel Vetter" <daniel.vetter@ffwll.ch> wrote:
>>
>> Only do it in the hope of resurrecting the gpu. Disable when reset is
>> disabled because it seems to tremendously increases our changes to
>> actually capture an error_state before the system goes all belly-up.
>>
>> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
>> ---
>> Hi Andrew,
>>
>> Can you please apply this patch and boot your system with
>>
>
> Will do in a couple days.  I'm several thousand miles from that computer
> right now :)

No problem. Something else to try: Are you by chance running with
DMAR/VT-d enabled? If so, please disable it (either in the BIOS or
with intel_iommu=off) and see whether that works around the semaphore
hangs.

Perhaps do this before trying out the patch, doesn't require a new kernel ;-)

Thanks a lot, Daniel
-- 
Daniel Vetter
daniel.vetter@ffwll.ch - +41 (0) 79 365 57 48 - http://blog.ffwll.ch

  reply index

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-13  5:38 [2.6.39 regression] hard lock when GNOME starts Andrew Lutomirski
2011-05-13 16:07 ` Andrew Lutomirski
2011-05-13 16:14   ` [PATCH] drm/i915: Revert i915.semaphore=1 default from 47ae63e0 Andy Lutomirski
2011-05-15 23:09     ` Keith Packard
2011-05-19 19:56     ` Keith Packard
2011-05-19 20:50       ` Andrew Lutomirski
2011-05-24 17:10         ` Andrew Lutomirski
2011-05-24 17:46           ` Keith Packard
2011-05-24 20:05           ` Ivan Bulatovic
2011-06-07  7:12         ` Eric Anholt
2011-06-10 14:06           ` Andrew Lutomirski
2011-08-22 16:53             ` Jesse Barnes
2011-08-31 18:24               ` Ben Widawsky
2011-08-31 18:30               ` Andrew Lutomirski
2011-08-31 19:07                 ` Keith Packard
2011-08-31 19:37                   ` Andrew Lutomirski
2011-09-26 17:59                     ` [PATCH] drm/i915: kicking rings considered harmful Daniel Vetter
2011-09-26 19:07                       ` Andrew Lutomirski
2011-09-27  9:57                         ` Daniel Vetter [this message]
2011-09-27  5:22                       ` Ben Widawsky
2011-09-27 10:03                         ` Daniel Vetter
2011-09-27 16:46                           ` Ben Widawsky
2011-09-27 17:31                             ` Chris Wilson
2011-09-27 18:03                               ` Daniel Vetter
2011-09-27 19:38                                 ` Ben Widawsky
2011-09-27 21:54                                   ` Chris Wilson
2011-09-28  1:34                                     ` Ben Widawsky
2011-09-28  8:47                                       ` Chris Wilson
2011-09-28  8:53                                         ` Daniel Vetter
2011-10-03 20:21                                           ` Andrew Lutomirski
2011-10-03 21:02                                             ` Daniel Vetter

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