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Date: Tue, 25 Mar 2008 10:53:38 +1000
From: "Dave Airlie" <airlied@gmail.com>
To: "Tilman Schmidt" <tilman@imap.cc>
Subject: Re: [2.6.25-rc6] possible regression: X server dying
Cc: linux-kernel@vger.kernel.org
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On Tue, Mar 25, 2008 at 9:45 AM, Tilman Schmidt <tilman@imap.cc> wrote:
> On Tue, 25 Mar 2008 09:22:32 +1000, Dave Airlie wrote:
>  > On Tue, Mar 25, 2008 at 8:38 AM, Tilman Schmidt <tilman@imap.cc> wrote:
>  >> In the five days since I booted a 2.6.25-rc6 kernel on my development
>  >>  machine, it has happened three times already that I came back to the
>  >>  machine to find that the X server had exited, killing all applications
>  >>  that still had a window open. [...]
>
> >
>  > anything in the X.org logfiles?
>
>  Ah, of course. Sorry I forgot. Xorg.0.log.old ends with this:
>
>  | Backtrace:
>  | 0: /usr/bin/X(xf86SigHandler+0x81) [0x80e6d81]
>  | 1: [0xb7fc9400]
>  | 2:
>  /usr/lib/xorg/modules//extensions/libGLcore.so(_swrast_Triangle+0x2d)
>  [0xb51ea5dd]
>  | 3: /usr/lib/xorg/modules//extensions/libGLcore.so [0xb51f1075]
>  | 4: /usr/lib/xorg/modules//extensions/libGLcore.so [0xb5206f2e]
>  | 5: /usr/lib/xorg/modules//extensions/libGLcore.so [0xb52080b8]
>  | 6:
>  /usr/lib/xorg/modules//extensions/libGLcore.so(_tnl_run_pipeline+0x153)
>  [0xb520cb83]
>  | 7:
>  /usr/lib/xorg/modules//extensions/libGLcore.so(_tnl_draw_prims+0x3f0)
>  [0xb51f8340]
>  | 8:
>  /usr/lib/xorg/modules//extensions/libGLcore.so(vbo_exec_vtx_flush+0x1fb)
>  [0xb52471eb]
>  | 9:
>  /usr/lib/xorg/modules//extensions/libGLcore.so(vbo_exec_FlushVertices+0x78)
>  [0xb52488e8]
>  | 10: /usr/lib/xorg/modules//extensions/libGLcore.so(_mesa_Flush+0x83)
>  [0xb5112663]
>  | 11: /usr/lib/xorg/modules//extensions/libglx.so [0xb7c6a107]
>  | 12: /usr/lib/xorg/modules//extensions/libglx.so [0xb7c4aa6d]
>  | 13: /usr/bin/X [0x815809e]
>  | 14: /usr/bin/X(Dispatch+0x1af) [0x808f68f]
>  | 15: /usr/bin/X(main+0x47e) [0x807717e]
>  | 16: /lib/libc.so.6(__libc_start_main+0xe0) [0xb7d5dfe0]
>  | 17: /usr/bin/X(FontFileCompleteXLFD+0x1e5) [0x8076501]
>  |
>  | Fatal server error:
>  | Caught signal 11.  Server aborting
>
>  I have put the entire file at
>  http://gollum.phnxsoft.com/~ts/linux/Xorg.0.log.old
>  in case you want to have a look.
>
>
>  > does it happen with DRI off?
>
>  I guess it does, as my Xorg.0.log{,.old} says:
>
>  | (WW) MGA(0): Direct rendering disabled
>
>  HTH
>  Tilman
>

Looks like a GL screensaver kicks in and blows away your X server sw-GL..

not sure how a new kernel could cause this though..

memory layout changes maybe..

Dave.
>