From: Chris Wilson <chris@chris-wilson.co.uk>
To: Sean Paul <seanpaul@chromium.org>,
dri-devel@lists.freedesktop.org, airlied@linux.ie
Subject: Re: [PATCH] drm: Add locking to resume_force_mode to prevent multiple
Date: Thu, 22 Mar 2012 22:57:15 +0000 [thread overview]
Message-ID: <e39f63$48saoj@fmsmga002.fm.intel.com> (raw)
In-Reply-To: <1332455155-16385-1-git-send-email-seanpaul@chromium.org>
On Thu, 22 Mar 2012 18:25:55 -0400, Sean Paul <seanpaul@chromium.org> wrote:
> Add a mutex to protect resume_force_mode from being called multiple
> times. This fixes a bug observed on SNB where two wake sources call
> resume_force_mode and the FDI training fails as a result. The user
> facing result of this is complete screen corruption.
Looks like a bug in i915_drv.c for calling that function without holding
the mode_config.lock
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2012-03-22 22:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-22 22:25 [PATCH] drm: Add locking to resume_force_mode to prevent multiple Sean Paul
2012-03-22 22:57 ` Chris Wilson [this message]
2012-03-23 12:51 ` Sean Paul
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