Bug 70172 - kde / kwin / kdm crashing (segfault) on intel driver after update
Summary: kde / kwin / kdm crashing (segfault) on intel driver after update
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium critical
Assignee: Chris Wilson
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-10-05 18:05 UTC by Daniel
Modified: 2013-10-10 11:33 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments

Description Daniel 2013-10-05 18:05:34 UTC 
segfault / crash of kwin, kde, kdm systems on intel
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

please see:
https://bugs.kde.org/show_bug.cgi?id=325615

from the syslog: Oct 4 10:56:50 xxx kdm: :0[4427]: Abnormal termination of greeter for display :0, code 0, signal 9 Oct 4 10:56:50 xxx kdm_greet[4777]: Cannot load /usr/share/kde4/apps/kdm/faces/.default.face: No such file or directory Oct 4 10:56:52 xxx kdm_greet[4777]: Cannot read from core

kdmgreet(1692)/kdecore (K*TimeZone*): No time zone information obtained from ktimezoned /usr/bin/xrandr: cannot find mode 1920x1080 QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory QFileSystemWatcher: failed to add paths: /tmp/1466078710/.config/ibus/bus *** glibc detected *** /usr/bin/X: free(): invalid pointer: 0x00007fef9750dcd7 *** ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(+0x7eb96)[0x7fef956b0b96] /usr/lib/x86_64-linux-gnu/libpixman-1.so.0(pixman_region_intersect+0x14e)[0x7fef9657d76e] /usr/lib/xorg/modules/drivers/intel_drv.so(+0x51dda)[0x7fef937b4dda] /usr/bin/X(+0x10ce26)[0x7fef975a9e26] /usr/bin/X(+0x4ea31)[0x7fef974eba31] /usr/bin/X(+0x3d8da)[0x7fef974da8da] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7fef9565376d] /usr/bin/X(+0x3dbd1)[0x7fef974dabd1] ======= Memory map: ======== 7fef83be9000-7fef84409000 rw-s 00000000 00:04 32339 /drm mm object (deleted) 7fef84409000-7fef84c29000 rw-s 00000000 00:04 32995 /drm mm object (deleted) 7fef84c29000-7fef85449000 rw-s 00000000 00:04 32996 /drm mm object (deleted)

etc...
Comment 1 Søren Sandmann Pedersen 2013-10-06 06:27:01 UTC 
Almost certainly a bug in the Intel driver.
Comment 2 Daniel 2013-10-06 10:26:33 UTC 
well, that's ugly indeed, but what is the possibility of providing workaround for this bug instead of just marking it as resolved and having users with crashing KDE?
Comment 3 Chris Wilson 2013-10-06 10:47:29 UTC 
Did you perchance happen to test?
Comment 4 Daniel 2013-10-06 18:02:03 UTC 
Sorry, test what?

This happens when compositing (desktop effects) is enabled. Desktop is fortunately fully usable, when compositing (desktop effects) are turned off in KDE. Otherwise it keeps randomly crashing, segfault sometimes happening from first few seconds after boot up to 40 mins after boot.
Comment 5 Chris Wilson 2013-10-06 18:11:12 UTC 
You have a driver built from a recent git checkout, if you test a more recent driver you will find this already fixed.
Comment 6 Daniel 2013-10-06 18:26:31 UTC 
Sorry, no. I have official (K)ubuntu repos for graphics, I don't build anything from git or so.
Comment 7 Daniel 2013-10-10 11:33:20 UTC 
seems to be fixed after update from official repo in kubuntu.

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