linux-kernel - Re: [2.6.25-rc6] possible regression: X server dying

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Date:	Tue, 25 Mar 2008 09:22:32 +1000
From:	"Dave Airlie" <airlied@...il.com>
To:	"Tilman Schmidt" <tilman@...p.cc>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [2.6.25-rc6] possible regression: X server dying

On Tue, Mar 25, 2008 at 8:38 AM, Tilman Schmidt <tilman@...p.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. This has never happened with previous
>  kernel versions (2.6.22.17, 2.6.24.3, 2.6.25-rc5), so I suspect some
>  relation to the latest rc kernel.
>
>  Syslog entries around the time of the crash (identical each time):
>
>  Mar 24 21:59:57 xenon kernel: [424469.161592] PM: Removing info for No
>  Bus:vcs7
>  Mar 24 21:59:57 xenon kernel: [424469.162591] PM: Removing info for No
>  Bus:vcsa7
>  Mar 24 21:59:57 xenon kernel: [424469.179556] uhci_hcd 0000:00:1d.1:
>  release dev 4 ep81-INT, period 8, phase 4, 93 us
>  Mar 24 21:59:57 xenon gconfd (ts-21705): Signal 15 erhalten,
>  ordungsgemäßes Herunterfahren
>  Mar 24 21:59:57 xenon gconfd (ts-21705): Beenden
>  Mar 24 21:59:57 xenon gdm[21341]: WARNING: gdm_slave_xioerror_handler:
>  Schwerwiegender X-Fehler - :0 wird neu gestartet
>  Mar 24 21:59:58 xenon kernel: [426716.212842] PM: Adding info for No
>  Bus:vcs7
>  Mar 24 21:59:58 xenon kernel: [426716.213300] PM: Adding info for No
>  Bus:vcsa7
>  Mar 24 21:59:58 xenon kernel: [426716.295997] PM: Removing info for No
>  Bus:vcs7
>  Mar 24 21:59:58 xenon kernel: [426716.296110] PM: Removing info for No
>  Bus:vcsa7
>  Mar 24 21:59:59 xenon kernel: [426716.434662] PM: Adding info for No
>  Bus:vcs7
>  Mar 24 21:59:59 xenon kernel: [426716.434742] PM: Adding info for No
>  Bus:vcsa7
>  Mar 24 22:00:00 xenon kernel: [426717.727427] uhci_hcd 0000:00:1d.1:
>  reserve dev 4 ep81-INT, period 8, phase 4, 93 us
>  Mar 24 22:00:00 xenon kernel: [424472.319521] uhci_hcd 0000:00:1d.1:
>  release dev 4 ep81-INT, period 8, phase 4, 93 us
>  Mar 24 22:00:00 xenon kernel: [426717.997926] uhci_hcd 0000:00:1d.1:
>  reserve dev 4 ep81-INT, period 8, phase 4, 93 us
>  Mar 24 22:00:02 xenon gconfd (root-15531): (Version 2.20.0) wird
>  gestartet, Prozesskennung 15531, Benutzer »root«
>  Mar 24 22:00:02 xenon gconfd (root-15531): Die Adresse
>  »xml:readonly:/etc/gconf/gconf.xml.mandatory« wurde an der Position 0 zu
>  einer nur lesbaren Konfigurationsquelle aufgelöst
>  Mar 24 22:00:02 xenon gconfd (root-15531): Die Adresse
>  »xml:readwrite:/root/.gconf« wurde an der Position 1 zu einer
>  schreibbaren Konfigurationsquelle aufgelöst
>  Mar 24 22:00:02 xenon gconfd (root-15531): Die Adresse
>  »xml:readonly:/etc/gconf/gconf.xml.defaults« wurde an der Position 2 zu
>  einer nur lesbaren Konfigurationsquelle aufgelöst
>  Mar 24 22:00:02 xenon gconfd (root-15531): Die Adresse
>  »xml:readonly:/etc/gconf/gconf.xml.schemas« wurde an der Position 3 zu
>  einer nur lesbaren Konfigurationsquelle aufgelöst
>  Mar 24 22:00:05 xenon kernel: [426722.904631] gtk-window-deco[15527]:
>  segfault at 4 ip b785c98a sp bfa4d160 error 4 in
>  libcairo.so.2.11.5[b7852000+7c000]
>
>  (The translation of the German error message from gdm is:
>  "Serious X error - restarting :0"
>  The German language messages from gconfd are probably not important,
>  as they appear identically during a regular X logout/login cycle.)
>
>  I'm at a loss where to start investigating this. Bisecting appears
>  impractical given the error happens about every other day with no
>  obvious triggering condition (except me being afk for a longer time.)
>
>  Configuration: Pentium D940, 2 GB RAM, Intel 965 chipset, Matrox
>  G550 PCIe graphics adapter, openSUSE 10.3 32 bit install.
>
>  Ideas?

anything in the X.org logfiles? does it happen with DRI off?

I don't think any of the DRM changes I made could cause this, so I'd
be looking towards something more generic..

Dave.

>
>  Thanks
>  Tilman
>
>
>
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