[Bug 652523] New: Xorg: SIGABRT at very start of session w/ emacs and dual head
https://bugzilla.novell.com/show_bug.cgi?id=652523 https://bugzilla.novell.com/show_bug.cgi?id=652523#c0 Summary: Xorg: SIGABRT at very start of session w/ emacs and dual head Classification: openSUSE Product: openSUSE 11.4 Version: Factory Platform: Other OS/Version: Other Status: NEW Severity: Major Priority: P5 - None Component: X.Org AssignedTo: bnc-team-xorg-bugs@forge.provo.novell.com ReportedBy: bphilips@novell.com QAContact: xorg-maintainer-bugs@forge.provo.novell.com Found By: --- Blocker: --- I am using Factory + X11:XOrg and running into a server crash. It seems to only happen with two displays and is reproducible when luanching emacs. (Related bug#648726). Program received signal SIGABRT, Aborted. 0x00007f92fff5e965 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x00007f92fff5e965 in raise () from /lib64/libc.so.6 #1 0x00007f92fff5fe66 in abort () from /lib64/libc.so.6 #2 0x00007f92fff99c83 in __libc_message () from /lib64/libc.so.6 #3 0x00007f92fff9f266 in malloc_printerr () from /lib64/libc.so.6 #4 0x00007f92fffa1574 in _int_malloc () from /lib64/libc.so.6 #5 0x00007f92fffa3af9 in malloc () from /lib64/libc.so.6 #6 0x000000000043d7d9 in AddResource (id=52428885, type=1073741826, value=0x30586f0) at resource.c:503 #7 0x000000000042925f in ProcCreatePixmap (client=0x1ae1320) at dispatch.c:1429 #8 0x000000000042da81 in Dispatch () at dispatch.c:432 #9 0x0000000000425b5e in main (argc=9, argv=<value optimized out>, envp=<value optimized out>) at main.c:291 (gdb) Supportconfig in Attachment #396617. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Stefan Dirsch
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Stefan Dirsch
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Brandon Philips
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--- Comment #3 from Brandon Philips
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Stefan Dirsch
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Brandon Philips
Any chance to debug this any further? The SIGABRT appears to happen in malloc. Not sure why.
I don't know where to start. Any pointers on how to run valgrind over Xorg successfully? Replacing /usr/bin/Xorg with a script that calls valgrind over /usr/bin/Xorg.orig doesn't seem to get me up to a working session. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Stefan Dirsch
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--- Comment #7 from Stefan Dirsch
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Stefan Dirsch
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Brandon Philips
What about attaching gdb to Xorg process and setting a breakpoint in RegionCreate() ?
Sorry I tried this earlier but forgot to respond. RegionCreate is called constantly particularly with rect=0x0, size=0. Any suggestions on how to narrow it down a bit? It seems like the corruption is happening long before RegionCreate since this function call happens so often in Xorg. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Stefan Dirsch
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--- Comment #11 from Brandon Philips
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--- Comment #12 from Brandon Philips
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Brandon Philips
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Brandon Philips
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Stefan Dirsch
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Stefan Dirsch
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Brandon Philips
Well, I'm afraid that's deep inside Kernel DRM.
Right, but I don't think it is the root cause. It may just be a symptom of Xorg crashing in some crazy state. Is there anything else I can try to debug Xorg? There is still some sort of bug that is being papered over by using MALLOC_CHECK_. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Brandon Philips
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Brandon Philips
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Stefan Dirsch
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--- Comment #17 from Jeff Mahoney
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--- Comment #18 from Jeff Mahoney
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--- Comment #19 from Jeff Mahoney
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--- Comment #20 from Jeff Mahoney
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Brandon Philips
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--- Comment #22 from Jeff Mahoney
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