From: Andrew Morton <akpm@linux-foundation.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>,
linux-kernel@vger.kernel.org, David.Woodhouse@intel.com,
dwmw2@infradead.org, eric@anholt.net, ben@decadent.org.uk,
gregkh@suse.de
Subject: Re: [PATCH] intel-agp.c: Fix crash when accessing nonexistent GTT entries in i915
Date: Mon, 22 Mar 2010 20:57:04 -0400 [thread overview]
Message-ID: <20100322205704.ac4cd9ae.akpm@linux-foundation.org> (raw)
In-Reply-To: <ca2dc2821003210830h2025df79r477cca7d81ddd28d@mail.gmail.com>
On Sun, 21 Mar 2010 16:30:20 +0100 Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> wrote:
> On Sun, Mar 21, 2010 at 2:58 PM, Zhenyu Wang <zhenyuw@linux.intel.com> wrote:
> > On 2010.03.20 14:04:56 +0100, Miguel Ojeda wrote:
> >> On Fri, Mar 19, 2010 at 9:27 PM, Andrew Morton
> >> <akpm@linux-foundation.org> wrote:
> >> > On Thu, 11 Mar 2010 16:54:26 +0100
> >> > Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> wrote:
> >> >
> >> >> Attached dmesg, lspci -vv, config and xorg.
> >> >>
> >> >> When the X server crashes, the kernel does not report anything
> >> >
> >> > This seems to have gone all quiet?
> >>
> >> It seems so, I was about to ping Zhenyu.
> >
> > Could you try recent X.org intel driver release? Your failure X log
> > showed some pretty old UMS driver's render flush time out message,
> > I think whose version never has been well tested with new kms/gem stuff.
> >
>
> Sure. Debian Stable got version 2.3.
>
> >>
> >> >
> >> > As this was a 2.6.32->2.6.32.4 regression, I assume that it's also a
> >> > 2.6.32->2.6.33 regression?
> >>
> >> Yep. All kernels I tested since 2.6.32.4 crash, including 2.6.32.10,
> >> 2.6.33 and 2.6.34-rc1. See my original message for more details about
> >> the crash.
> >>
> >
> > Could you bisect? I doubt it's caused by David's patch, as if it is, you
> > will have trouble at early agp init time, instead of current problem looks
> > like something causing rendering hang..and I can't think of how mapping GTT
> > to a scratch page could cause problem in case GTT bar is truely 256K.
>
> I bisected in order to find the commit 5877960869333e42ebeb733e8d9d5630ff96d350.
I have no 5877960869333e42ebeb733e8d9d5630ff96d350 here. This is why
we ask that people always identify patches by both the hash and the
full title..
> I don't know if such commit is really the true problem (does not seem
> so if you are right); however, it is the commit that breaks the X
> server as I stated in the original message.
next prev parent reply other threads:[~2010-03-23 3:58 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-10 22:09 [PATCH] intel-agp.c: Fix crash when accessing nonexistent GTT entries in i915 Miguel Ojeda
2010-03-11 7:31 ` Miguel Ojeda
2010-03-11 8:34 ` Zhenyu Wang
2010-03-11 15:54 ` Miguel Ojeda
2010-03-19 20:27 ` Andrew Morton
2010-03-20 13:04 ` Miguel Ojeda
2010-03-21 13:58 ` Zhenyu Wang
2010-03-21 15:30 ` Miguel Ojeda
2010-03-23 0:57 ` Andrew Morton [this message]
2010-03-23 4:14 ` Christian Kujau
2010-03-23 11:40 ` Miguel Ojeda
2010-03-24 18:14 ` Andrew Morton
2010-03-24 19:07 ` Miguel Ojeda
2010-03-25 16:55 ` Miguel Ojeda
2010-04-27 17:57 ` Andrew Morton
2010-04-27 20:06 ` Miguel Ojeda
2010-04-27 20:26 ` Andrew Morton
2010-04-27 21:07 ` Miguel Ojeda
2010-03-23 10:02 ` Miguel Ojeda
2010-04-28 7:49 ` Dave Airlie
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