Bug#852082: gwc in testing crashes at startup

[Jaromír Mikeš]

2017-01-21 15:18 GMT+01:00 Christian Grigis <glove at grigri.org>:

> Package: gwc
> Version: 0.21.19~dfsg0-6
> Severity: important
>
> Running 'gnome_wave_cleaner' from the testing package version
> (0.21.19~dfsg0-6) crashes immediately at startup:
>
> $ gnome_wave_cleaner
> Current stack limit: 8388608 bytes
> Segmentation fault
>
> This is reproducible when building from sources:
>
> ~/tmp/gwc-testing/gwc-0.21.19~dfsg0$ ./gwc
> Current stack limit: 8388608 bytes
> Segmentation fault
>
> It does not appear to depend on package contents differences between
> stable and testing, as using the 0.21.19~dfsg0-4 package version results
> in the same crash.
>
> The gdb backtrace gives:
>
> (gdb) run
> Starting program: /home/glove/tmp/gwc-testing/gwc-0.21.19~dfsg0/gwc
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> Current stack limit: 8388608 bytes
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007ffff6e047f9 in g_type_is_a () from /usr/lib/x86_64-linux-gnu/
> libgobject-2.0.so.0
> (gdb) bt
> #0  0x00007ffff6e047f9 in g_type_is_a () from /usr/lib/x86_64-linux-gnu/
> libgobject-2.0.so.0
> #1  0x00007ffff7519084 in gtk_type_new () from /usr/lib/x86_64-linux-gnu/
> libgtk-x11-2.0.so.0
> #2  0x000055555557223c in led_bar_new (segments=20, orientation=0) at
> gtkledbar.c:82
> #3  0x0000555555561cc9 in main (argc=1, argv=0x7fffffffe308) at gwc.c:3109
>
> I experimented with optimization levels but even -O0 gives the crash.
>
> However, it looks like it is related to the compiler, because forcing to
> compile with gcc-5 instead of gcc-6 produces a binary that starts up
> normally.
>
> Please let me know if I can provide more information.
>


Hi,

Anyone having idea how to fix this?

best regrads

mira
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