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<p>Hello,</p>
<p>I believe I am experiencing the same issue. It may be causing
problems with x11rb; <a
href="https://github.com/zed-industries/zed/issues/29083#issuecomment-2907005604">see
related issue with Zed</a> which led me to look in this
direction. <br>
</p>
<p>I have followed the "HowToGetABacktrace" page and installed debug
symbols that I think are relevant. I have a bunch of coredumps
available via systemd-coredump. </p>
<p>Here's my dmesg segfault:</p>
<p>[ 284.036140] ibus-x11[2813]: segfault at 2ce ip
00007f0c79604356 sp 00007ffe766e79b0 error 4 in
libgdk-3.so.0.2417.32[9c356,7f0c79596000+87000] likely on CPU 5
(core 2, socket 0)<br>
[ 284.036175] Code: 4c 89 0c 24 e8 db f0 ff ff 44 8b 54 24 18 41
81 e2 ff 9f ff ff 45 09 d4 44 3a 68 0c 0f 82 c2 01 00 00 48 8b 78
20 41 0f b6 cd <48> 8b 57 20 48 8d 0c ca 44 0f b6 41 04 44
89 c6 83 e6 0f 44 38 68<br>
</p>
<p>Here's the info for the coredump I'll show the backtrace of
below:</p>
<p><span style="font-family:monospace"><span
style="color:#000000;background-color:#ffffff;"> </span></span>
PID: 2887 (ibus-x11)
<br>
UID: 1000 (matt)
<br>
GID: 1000 (matt)
<br>
Signal: 6 (ABRT)
<br>
Timestamp: Sun 2025-05-25 11:03:15 ADT (22min ago)
<br>
Command Line: /usr/libexec/ibus-x11 --kill-daemon
<br>
Executable: /usr/libexec/ibus-x11
<br>
Control Group: /user.slice/user-1000.slice/session-3.scope
<br>
Unit: session-3.scope
<br>
Slice: user-1000.slice
<br>
Session: 3
<br>
Owner UID: 1000 (matt)
<br>
Boot ID: ------<br>
Machine ID: -----<br>
Hostname: ------<br>
Storage:
/var/lib/systemd/coredump/core.ibus-x11.1000.e378e9f2f3cb4de889a510235a84ae60.2887.1748181795000000.zst
(present)
<br>
Size on Disk: 1.6M
<br>
Message: Process 2887 (ibus-x11) of user 1000 dumped core.<span
style="font-family:monospace"><br>
<span style="color:#000000;background-color:#ffffff;">
</span></span><span style="font-family:monospace"><br>
</span></p>
<p>Here's a backtrace from the same:</p>
<p>(gdb) bt
<br>
#0 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=6, no_tid=no_tid@entry=0)
<br>
at ./nptl/pthread_kill.c:44
<br>
#1 0x00007f019578d9ff in __pthread_kill_internal
(threadid=<optimized out>, signo=6)
<br>
at ./nptl/pthread_kill.c:89
<br>
#2 0x00007f0195738cc2 in __GI_raise (sig=sig@entry=6) at
../sysdeps/posix/raise.c:26
<br>
#3 0x00007f01957214ac in __GI_abort () at ./stdlib/abort.c:73
<br>
#4 0x00007f0195722291 in __libc_message_impl
(fmt=fmt@entry=0x7f01958a432d "%s\n")
<br>
at ../sysdeps/posix/libc_fatal.c:134
<br>
#5 0x00007f0195797465 in malloc_printerr
<br>
(str=str@entry=0x7f01958a74d0 "corrupted size vs. prev_size in
fastbins") at ./malloc/malloc.c:5829
<br>
#6 0x00007f019579802c in malloc_consolidate
(av=av@entry=0x7f01958e0ac0 <main_arena>)
<br>
at ./malloc/malloc.c:4924
<br>
#7 0x00007f019579a858 in _int_malloc (av=av@entry=0x7f01958e0ac0
<main_arena>, bytes=bytes@entry=2560)
<br>
at ./malloc/malloc.c:4099<br>
</p>
<p>#8 0x00007f019579cf47 in __libc_calloc (n=n@entry=2560,
elem_size=elem_size@entry=1)
<br>
at ./malloc/malloc.c:3844
<br>
#9 0x00005616353bf94b in _Xi18nChangeIC
<br>
--Type <RET> for more, q to quit, c to continue without
paging-- <br>
(ims=ims@entry=0x56164b8ae4d0,
call_data=call_data@entry=0x7ffdd1fb72c0, p=p@entry=0x56164ba744c4
"\001", <br>
create_flag=create_flag@entry=0) at ./util/IMdkit/i18nIc.c:697
<br>
#10 0x00005616353bdebc in SetICValuesMessageProc
<br>
(ims=0x56164b8ae4d0, call_data=0x7ffdd1fb72c0, p=0x56164ba744c4
"\001") at ./util/IMdkit/i18nPtHdr.c:923
<br>
#11 _Xi18nMessageHandler
<br>
(ims=ims@entry=0x56164b8ae4d0, connect_id=1,
p=p@entry=0x56164ba744c0 "6", delete=delete@entry=0x7ffdd1fb7<br>
510) at ./util/IMdkit/i18nPtHdr.c:1849
<br>
#12 0x00005616353b7f3b in WaitXIMProtocol
<br>
(dpy=<optimized out>, win=<optimized out>,
ev=<optimized out>, client_data=0x56164b8ae4d0
"@a<5\026V")
<br>
at ./util/IMdkit/i18nX.c:524
<br>
#13 0x00007f0195c923d6 in _gdk_x11_display_queue_events
(display=0x56164b7fdb00 [GdkX11Display])
<br>
at ../../../gdk/x11/gdkeventsource.c:337</p>
<p>#14 0x00007f0195c36e24 in gdk_display_get_event
(display=display@entry=0x56164b7fdb00 [GdkX11Display])
<br>
at ../../../gdk/gdkdisplay.c:442
<br>
#15 0x00007f0195c92216 in gdk_event_source_dispatch
<br>
(source=<optimized out>, callback=<optimized out>,
user_data=<optimized out>)
<br>
at ../../../gdk/x11/gdkeventsource.c:363 <br>
#16 0x00007f0195a9c345 in g_main_dispatch
(context=context@entry=0x56164b8a0000)
<br>
at ../../../glib/gmain.c:3398
<br>
#17 0x00007f0195a9e577 in g_main_context_dispatch_unlocked
(context=0x56164b8a0000)
<br>
at ../../../glib/gmain.c:4249
<br>
#18 g_main_context_iterate_unlocked
<br>
(context=0x56164b8a0000, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>)
<br>
at ../../../glib/gmain.c:4314
<br>
#19 0x00007f0195a9efdf in g_main_loop_run (loop=0x7f01580025f0) at
../../../glib/gmain.c:4516
<br>
#20 0x00007f0195d4d650 in ibus_main () at ./src/ibusshare.c:415
<br>
#21 0x00005616353b2c7c in main (argc=<optimized out>,
argv=<optimized out>) at ./client/x11/main.c:1456<br>
<span style="font-family:monospace"><br>
</span></p>
<p><span style="font-family:monospace"><br>
</span></p>
<div class="moz-signature">-- <br>
<b style="color: rgb(18, 190, 224);">Matthew Scheffel</b> |
Software Developer<br>
52 Townshend Avenue, Amherst, Nova Scotia, B4H 4N6<br>
<b style="color: rgb(18, 190, 224);">Cell</b>: 1 (647) 230-4773 <b
style="color: rgb(18, 190, 224);">E-mail</b>: <a class="moz-txt-link-abbreviated" href="mailto:matt@dataheck.com">matt@dataheck.com</a><br>
<br>
DATAHECK.COM | 🦀 🐍</div>
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