Bug#917130: gimp: crashes at start: segmentation fault in g_slice_alloc() (memory corruption?)

[Simon McVittie]

Control: retitle -1 gimp: crashes at start: segmentation fault in g_slice_alloc() (memory corruption?)
Control: tags -1 + moreinfo

On Sun, 23 Dec 2018 at 11:24:49 +0800, 積丹尼 Dan Jacobson wrote:
> Thread 1 (Thread 0x7f1aae82ce00 (LWP 3715)):
> #0  0x00007f1ab0f8a484 in read () from /lib/x86_64-linux-gnu/libpthread.so.0
> No symbol table info available.
> #1  0x00007f1ab1e81d34 in gimp_stack_trace_print () from /usr/lib/libgimpbase-2.0.so.0
> No symbol table info available.
> #2  0x000055bffd0fc4a0 in ?? ()
> No symbol table info available.
> #3  0x000055bffd0fc8d8 in gimp_fatal_error ()
> No symbol table info available.
> #4  0x000055bffd0fd037 in ?? ()
> No symbol table info available.
> #5  <signal handler called>
> No symbol table info available.
> #6  0x00007f1ab118d92a in g_slice_alloc () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
> No symbol table info available.
> #7  0x000055bffd47ba9e in gimp_temp_buf_new ()
> No symbol table info available.

A crash in memory allocation infrastructure is usually evidence of earlier
memory corruption, so the root cause probably happened before this.
I can't reproduce this crash myself.

Please install debug symbols for GIMP and relevant libraries (at least
libglib2.0-0-dbgsym, libgimp2.0-dbgsym and gimp-dbgsym), which you can
get from the debian-debug apt repository:
<https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols>
This will produce a more informative backtrace.

If you create a new user account on the same system and run gimp as
that user, does it crash in the same way?

If you run with the environment variable G_SLICE set to "debug-blocks",
do you still get a crash? If you do, what is the output?

If you run with environment variables G_SLICE=always-malloc and
MALLOC_CHECK_=2, do you still get a crash? If you do, what is the output?

Setting G_DEBUG=fatal-criticals and/or G_MESSAGES_DEBUG=all might also
produce useful logging.

    smcv