Upgraded to gdm-2.19.1-1.fc8.i386.rpm. Tried to log in. Screen flashes after I
enter my password, and then login screen returns. Enabled gdm debug and found
that slave gdm-binary process is crashing. Relevant log entries attached as
log.txt. Downgrading to gdm-2.18.0-14.fc7.i386.rpm made the problem go away.
I'd be glad to snag a core dump if you can't reproduce the issue, but I can't
figure out how to do that -- gdm-binary doesn't appear to be dumping core
anywhere, and I can't figure out what setting I'd need to modify to make it do that.
Created attachment 156023 [details]
Log messages from gdm with debug enabled
Marking this urgent because can't log in at all because of this bug.
This bug might have surfaced again because it seems to describe what has started
happening to me as of approx 18th Jan 2008: the system is crashing when I try to
login, and the following message has appeared in my dmesg log:
gdm-binary: segfault at 73694c7f eip 4c7c3092 esp bfa14ed0 error 6
I am running gdm-2.20.2-2.fc8. In order to login, I *seem* to need to clean out
my user's files and directories from /tmp. When login fails, I can login via a
serial console and discover that the .xsession-errors file contains a message
from the X server, complaining that a resource is temporarily unavailable.
I have found this back-trace in one of the gdm log files:
0: /usr/bin/X(xf86SigHandler+0x81) [0x80cdfb1]
2: /usr/lib/xorg/modules//libfb.so(fbCopyAreammx+0x21e) [0xb7c3494e]
3: /usr/lib/xorg/modules//libfb.so(fbCompositeCopyAreammx+0x66) [0xb7c34a16]
4: /usr/lib/xorg/modules//libfb.so(fbComposite+0x57f) [0xb7c279df]
5: /usr/lib/xorg/modules//libxaa.so(XAAComposite+0x261) [0xb7be0f31]
6: /usr/bin/X [0x8177706]
7: /usr/bin/X [0x8174006]
8: /usr/bin/X(CompositePicture+0x153) [0x815a6c3]
9: /usr/bin/X [0x81604ff]
10: /usr/bin/X [0x815d8a5]
11: /usr/bin/X [0x8150b0e]
12: /usr/bin/X(Dispatch+0x1aa) [0x808880a]
13: /usr/bin/X(main+0x49a) [0x807054a]
14: /lib/libc.so.6(__libc_start_main+0xe0) [0x426c5390]
15: /usr/bin/X(FontFileCompleteXLFD+0x1f1) [0x806f831]
FYI, I have a Radeon 9550 card, and have disabled Desktop Effects. Here is my
Identifier "Radeon 9550"
Option "AGPMode" "8"
Option "GARTSize" "128"
Option "RenderAccel" "on"
Option "EnablePageFlip" "on"
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