kde-window-decorator crashes with sigsegv if the mouse wheel is rolled over titlebar in Crystal deco

Bug #150652 reported by D. Brodzik
2
Affects Status Importance Assigned to Milestone
kwin-style-crystal (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

Binary package hint: compiz

The KDE window decorator crashes with a SIGSEGV consistently when ALL of the following are true:

1. The decoration theme is Crystal
2. The option to switch tasks on rolling the mouse wheel on the titlebar is on.
3. The mouse wheel is rolled over the frame or titlebar.

Here are my backtraces:

Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1226336048 (LWP 14436)]
[KCrash handler]
#6 0xffffe410 in __kernel_vsyscall ()
#7 0xb7a81875 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0xb7a83201 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0xb7ab8e5c in ?? () from /lib/tls/i686/cmov/libc.so.6
#10 0x0000000f in ?? ()
#11 0xbff99bf4 in ?? ()
#12 0x00000400 in ?? ()
#13 0xb7b83108 in ?? () from /lib/tls/i686/cmov/libc.so.6
#14 0x00000017 in ?? ()
#15 0xbff9bcbd in ?? ()
#16 0x00000014 in ?? ()
#17 0xb7b83121 in ?? () from /lib/tls/i686/cmov/libc.so.6
#18 0x00000002 in ?? ()
#19 0xb7b8317c in ?? () from /lib/tls/i686/cmov/libc.so.6
#20 0x00000023 in ?? ()
#21 0xb7b83125 in ?? () from /lib/tls/i686/cmov/libc.so.6
#22 0x00000004 in ?? ()
#23 0xbff9a16b in ?? ()
#24 0x00000008 in ?? ()
#25 0xb7b8312b in ?? () from /lib/tls/i686/cmov/libc.so.6
#26 0x00000005 in ?? ()
#27 0x00000000 in ?? ()

Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1226692400 (LWP 12258)]
[KCrash handler]
#6 0xffffe410 in __kernel_vsyscall ()
#7 0xb7a2a875 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0xb7a2c201 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0xb7a61e5c in ?? () from /lib/tls/i686/cmov/libc.so.6
#10 0x0000000f in ?? ()
#11 0xbfd19894 in ?? ()
#12 0x00000400 in ?? ()
#13 0xb7b2c108 in ?? () from /lib/tls/i686/cmov/libc.so.6
#14 0x00000017 in ?? ()
#15 0xbfd1ccbd in ?? ()
#16 0x00000014 in ?? ()
#17 0xb7b2c121 in ?? () from /lib/tls/i686/cmov/libc.so.6
#18 0x00000002 in ?? ()
#19 0xb7b2c17c in ?? () from /lib/tls/i686/cmov/libc.so.6
#20 0x00000023 in ?? ()
#21 0xb7b2c125 in ?? () from /lib/tls/i686/cmov/libc.so.6
#22 0x00000004 in ?? ()
#23 0xbfd19e0b in ?? ()
#24 0x00000008 in ?? ()
#25 0xb7b2c12b in ?? () from /lib/tls/i686/cmov/libc.so.6
#26 0x00000005 in ?? ()
#27 0xb7a6a071 in ?? () from /lib/tls/i686/cmov/libc.so.6
#28 0xb6eb3f10 in ?? () from /usr/lib/libfreetype.so.6
#29 0x00000000 in ?? ()

Revision history for this message
D. Brodzik (amyrose) wrote :

Also wanted to note that using the mouse wheel on the border does not crash if the first two are not true, but this may be common because of the fact that the first two are Kubuntu's default settings.

Revision history for this message
Danny Baumann (dannybaumann) wrote :

This is a bug in Crystal which assumes a reparenting WM and does no error checking at all.
See here for analysis and explanation: http://bugs.opencompositing.org/show_bug.cgi?id=359

Revision history for this message
Daniel T Chen (crimsun) wrote :

Is this symptom still reproducible in 8.10 RC or later?

Changed in kwin-style-crystal:
status: New → Incomplete
Revision history for this message
Pedro Villavicencio (pedro) wrote :

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to New. Thanks again!.

Changed in kwin-style-crystal:
status: Incomplete → Invalid
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