[gentoo-user] X crashes, how to troubleshoot?

[Willie Wong]

Recently X has spontaneously crashed on me several times. Each time it
is triggered by opening up a new webpage in a new tab in Firefox. The
URL of the webpages are random, so I don't think it has to do with any
particular site (and those url often open fine on subsequent visits). 

The message that I end up having from X is:

Backtrace:
0: X (xorg_backtrace+0x3b) [0x80ab23b]
1: X (0x8048000+0x5e1d5) [0x80a61d5]
2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb782240c]
3: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb7299000+0x32cae)
[0xb72cbcae]
4: X (0x8048000+0xc6550) [0x810e550]
5: X (0x8048000+0x20745) [0x8068745]
6: X (0x8048000+0x22df7) [0x806adf7]
7: X (0x8048000+0x1d285) [0x8065285]
8: /lib/libc.so.6 (__libc_start_main+0xe5) [0xb7397bb5]
9: X (0x8048000+0x1ce51) [0x8064e51]
Bus error at address 0xb61f4000

Fatal server error:
Caught signal 7 (Bus error). Server aborting

which is not too much to go on. As you can see, I use the intel
drivers. The behaviour may have started after my March 19 upgrades:

Fri Mar 19 11:08:54 2010 >>> x11-libs/libXau-1.0.5
Fri Mar 19 11:09:41 2010 >>> x11-libs/libXdmcp-1.0.3
Fri Mar 19 11:10:06 2010 >>> x11-misc/util-macros-1.6.1
Fri Mar 19 11:20:13 2010 >>> x11-libs/libX11-1.3.3
Fri Mar 19 11:21:17 2010 >>> x11-libs/libdrm-2.4.19
Fri Mar 19 11:22:44 2010 >>> x11-libs/libXt-1.0.8
Fri Mar 19 11:23:26 2010 >>> x11-libs/libXScrnSaver-1.2.0
Fri Mar 19 11:41:42 2010 >>> x11-libs/openmotif-2.3.3
Fri Mar 19 11:42:17 2010 >>> x11-apps/xinput-1.5.1
Fri Mar 19 12:30:55 2010 >>> x11-apps/xinit-1.2.1
Fri Mar 19 12:54:23 2010 >>> x11-base/xorg-server-1.7.6
Fri Mar 19 12:55:55 2010 >>> x11-drivers/xf86-video-intel-2.10.0-r1

For what it's worth, here's the lspci output:

Gee-Mi-Ni elog # lspci -vs 00:02.*
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
        Subsystem: Giga-byte Technology Device 1999
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at 58280000 (32-bit, non-prefetchable) [size=512K]
        I/O ports at 60c0 [size=8]
        Memory at 40000000 (32-bit, prefetchable) [size=256M]
        Memory at 58300000 (32-bit, non-prefetchable) [size=256K]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 2
        Kernel driver in use: i915

00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
        Subsystem: Giga-byte Technology Device 1999
        Flags: bus master, fast devsel, latency 0
        Memory at 58200000 (32-bit, non-prefetchable) [size=512K]
        Capabilities: [d0] Power Management version 2


Any suggestions on what I can do to figure out what the problem is?

Thanks, 

W
-- 
Willie W. Wong                                     wwong@××××××××××××××.edu
Data aequatione quotcunque fluentes quantitae involvente fluxiones invenire 
         et vice versa   ~~~  I. Newton