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Could you open a bug on freedesktop.org bugzilla and attach dmesg and
/sys/kernel/debug/dri/0/i915_error_state, so we could look into it further?

-- 
Eugeni Dodonov

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<div class=3D"gmail_quote">On Mon, Sep 5, 2011 at 16:37, Alon Levy <span di=
r=3D"ltr">&lt;<a href=3D"mailto:alevy at redhat.com">alevy at redhat.com</a>&gt;<=
/span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex;">

Fixes three segmentation faults where it is wrongly assumed the depth buffe=
r&#39;s<br>
renderbuffer&#39;s region is not NULL.<br>
<br>
735794 - verified to be fixed by these three patches (these three apply<br>
to 7.11 almost cleanly, just the second requires minor changes).<br>
<br>
Related RHBZs (maybe solved as well, didn&#39;t reproduce):<br>
=A0734183 - [abrt] gnome-shell-3.1.4-2.gite7b9933.fc16: prepare_depthbuffer=
<br>
=A0717140 -[abrt] compiz-0.9.4-2.fc15: prepare_depthbuffer<br>
<br>
Alon Levy (3):<br>
 =A0i965: prepare_depthbuffer: fix segfault, rhbz#735794<br>
 =A0i965: prepare_depthbuffer: don&#39;t update NULL region&#39;ed surface,=
<br>
 =A0 =A0rhbz#735794<br>
 =A0i965: emit_depthbuffer: fix segfault, rhbz#735794<br>
<br>
=A0src/mesa/drivers/dri/i965/brw_misc_state.c =A0 =A0 =A0 | =A0 =A07 +++++-=
-<br>
=A0src/mesa/drivers/dri/i965/brw_wm_surface_state.c | =A0 =A03 +++<br>
=A02 files changed, 8 insertions(+), 2 deletions(-)<br>
<font color=3D"#888888"><br></font></blockquote><div><br>Hi Alon,<br><br>th=
ose patches fix the crash you are having, but I am wondering why the crash =
happened in the first place. E.g., we should not get to the situation where=
 region is NULL under normal cases.<br>

<br>From what it looks like, it could happen when GPU was hung for example.=
<br><br>Could you open a bug on <a href=3D"http://freedesktop.org">freedesk=
top.org</a> bugzilla and attach dmesg and /sys/kernel/debug/dri/0/i915_erro=
r_state, so we could look into it further? <br clear=3D"all">

</div></div><br>-- <br>Eugeni Dodonov<br>

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