This is intermittent, happened 2 times out of ~15 tries. Mercurial is configured to run a vim based merge tool (Splice). Splice does configuration when it starts up. There some gtk on the stack, timing issue? The version of vim is less that a week old and I didn't see any recent changes that obviously covered this.
Some gdb output, full backtrace below
(gdb) up 5
#5 0x000056524e7b781d in update_screen (type_arg=type_arg@entry=40) at drawscreen.c:273
273 if (wp->w_buffer->b_mod_set)
(gdb) p wp
$1 = (win_T *) 0x5652512bc640
(gdb) p wp->w_buffer
$2 = (buf_T *) 0x0
Here's console
$ hg merge tip
merging swingset/CHANGELOG-POMS.txt
4 files to edit
Vim: Caught deadly signal SEGV
Vim: preserving files...
Vim: Finished.
Segmentation fault (core dumped)
merging swingset/CHANGELOG-POMS.txt failed!
No SEGV
9.0.1274
ubuntu/gtk
(gdb) bt #0 0x00007fcee004275b in kill () at ../sysdeps/unix/syscall-template.S:120 #1 0x000056524e8a91bc in may_core_dump () at os_unix.c:3511 #2 mch_exit (r=r@entry=1) at os_unix.c:3477 #3 0x000056524ea15316 in getout (exitval=1) at main.c:1750 #4 0x00007fcee0042520 in <signal handler called> () at /lib/x86_64-linux-gnu/libc.so.6 #5 0x000056524e7b781d in update_screen (type_arg=type_arg@entry=40) at drawscreen.c:273 #6 0x000056524e9520a9 in set_shellsize_inner (height=0, mustset=0, width=<optimized out>) at term.c:3702 #7 set_shellsize (width=<optimized out>, height=0, mustset=0) at term.c:3740 #8 0x000056524e9ce435 in gui_resize_shell (pixel_width=1796, pixel_height=pixel_height@entry=872) at gui.c:1593 #9 0x000056524e9d9872 in form_configure_event (widget=<optimized out>, event=0x7ffdeecc8808, data=<optimized out>) at gui_gtk_x11.c:4233 #10 0x00007fcee17e5b77 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #11 0x00007fcee0fadd2f in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #12 0x00007fcee0fc9c36 in () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #13 0x00007fcee0fcb026 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #14 0x00007fcee0fcb863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #15 0x00007fcee17ae724 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #16 0x00007fcee1652001 in gtk_main_do_event () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #17 0x000056524e9dec42 in form_send_configure (form=<optimized out>) at gui_gtk_f.c:860 #18 form_size_allocate (widget=0x565250a87260, allocation=0x7ffdeecc88e0) at gui_gtk_f.c:520 #19 0x00007fcee179ee20 in gtk_widget_size_allocate_with_baseline () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #20 0x00007fcee1531812 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #21 0x00007fcee153276c in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #22 0x00007fcee1588d07 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #23 0x00007fcee15327e9 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #24 0x00007fcee179ee20 in gtk_widget_size_allocate_with_baseline () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #25 0x00007fcee17bb78b in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #26 0x00007fcee0fadd2f in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #27 0x00007fcee0fc9895 in () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #28 0x00007fcee0fcb614 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #29 0x00007fcee0fcb863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #30 0x00007fcee179f1a2 in gtk_widget_size_allocate_with_baseline () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #31 0x00007fcee17c01b4 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #32 0x00007fcee0fcb700 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #33 0x00007fcee0fcb863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #34 0x00007fcee1575740 in () at /lib/x86_64-linux-gnu/libgtk-3.so.0 #35 0x00007fcee0fcb700 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #36 0x00007fcee0fcb863 in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #37 0x00007fcee133fbe6 in () at /lib/x86_64-linux-gnu/libgdk-3.so.0 #38 0x00007fcee132c2ad in () at /lib/x86_64-linux-gnu/libgdk-3.so.0 #39 0x00007fcee0eb52c8 in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #40 0x00007fcee0eb4c44 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #41 0x00007fcee0f096c8 in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #42 0x00007fcee0eb23e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #43 0x000056524e9d6290 in gui_mch_update () at gui_gtk_x11.c:6430 #44 0x000056524e9c070e in win_alloc (after=0x0, hidden=hidden@entry=0) at window.c:5513 #45 0x000056524e9bf7f7 in win_split_ins (size=0, flags=0, new_wp=0x0, dir=0) at window.c:5731 #46 0x000056524e7fa597 in ex_splitview (eap=0x7ffdeecc9ae0) at ex_docmd.c:6825 #47 0x000056524e7f3d6e in do_one_cmd --Type <RET> for more, q to quit, c to continue without paging--c (cmdlinep=0x7ffdeecc9ab0, flags=11, cstack=0x7ffdeecc9c68, cookie=0x0, fgetline=<optimized out>) at ex_docmd.c:2580 #48 do_cmdline (cmdline=<optimized out>, fgetline=0x0, cookie=0x0, flags=11) at ex_docmd.c:993 #49 0x000056524e9f5751 in VimCommand (self=<optimized out>, string=<optimized out>) at ./if_py_both.h:699 #50 0x00007fcee052e9ee in () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #51 0x00007fcee047b9b8 in _PyEval_EvalFrameDefault () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #52 0x00007fcee05c681f in () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #53 0x00007fcee047862e in _PyEval_EvalFrameDefault () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #54 0x00007fcee05c681f in () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #55 0x00007fcee047b9b8 in _PyEval_EvalFrameDefault () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #56 0x00007fcee05c681f in () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #57 0x00007fcee047862e in _PyEval_EvalFrameDefault () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #58 0x00007fcee05c681f in () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #59 0x00007fcee05c194e in PyEval_EvalCode () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #60 0x00007fcee06107bd in () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #61 0x00007fcee06117e9 in PyRun_StringFlags () at /lib/x86_64-linux-gnu/libpython3.10.so.1.0 #62 0x000056524e9ebe78 in run_cmd (cmd=0x0, arg=<optimized out>, pygilstate=<optimized out>) at ./if_py_both.h:5697 #63 0x000056524e9ebd80 in DoPyCommand (cmd=<optimized out>, init_range=<optimized out>, run=0x56524e9ebe60 <run_cmd>, arg=arg@entry=0x7ffdeeccaef0) at if_python3.c:1275 #64 0x000056524e9eb31d in ex_py3 (eap=0x7ffdeeccaef0) at if_python3.c:1309 #65 0x000056524e7f3d6e in do_one_cmd (cmdlinep=0x7ffdeeccaec0, flags=11, cstack=0x7ffdeeccb078, cookie=0x7ffdeeccc220, fgetline=<optimized out>) at ex_docmd.c:2580 #66 do_cmdline (cmdline=cmdline@entry=0x56525129aad0 "python3 SpliceInit()", fgetline=0x56524e90af70 <getsourceline>, cookie=0x7ffdeeccc220, flags=flags@entry=11) at ex_docmd.c:993 #67 0x000056524e98027c in do_ucmd (eap=eap@entry=0x7ffdeeccb8d0) at usercmd.c:1953 #68 0x000056524e7f3d8c in do_one_cmd (cmdlinep=0x7ffdeeccb8a0, flags=11, cstack=0x7ffdeeccba58, cookie=0x7ffdeeccc220, fgetline=<optimized out>) at ex_docmd.c:2573 #69 do_cmdline (cmdline=<optimized out>, fgetline=0x56524e90af70 <getsourceline>, cookie=cookie@entry=0x7ffdeeccc220, flags=flags@entry=11) at ex_docmd.c:993 #70 0x000056524e99cc7a in exec_command (iptr=0x5652512b9000) at vim9execute.c:1951 #71 exec_instructions (ectx=ectx@entry=0x7ffdeecccb50) at vim9execute.c:3098 #72 0x000056524e9a2aaa in call_def_function (ufunc=ufunc@entry=0x565251138450, argc_arg=1, argc_arg@entry=32765, argv=argv@entry=0xeeccce10, flags=flags@entry=0, partial=0x0, object=0x0, funccal=0x565251194f90, rettv=0x7ffdeeccd580) at vim9execute.c:6065 #73 0x000056524e98431b in call_user_func (fp=0x565251138450, argcount=0, argvars=0x0, rettv=<optimized out>, funcexe=0x7ffdeeccd490, selfdict=<optimized out>) at userfunc.c:2784 #74 call_user_func_check (fp=fp@entry=0x565251138450, argcount=0, argcount@entry=1, argvars=0x0, argvars@entry=0x7ffdeeccd560, rettv=<optimized out>, rettv@entry=0x7ffdeeccd580, funcexe=funcexe@entry=0x7ffdeeccd490, selfdict=selfdict@entry=0x0) at userfunc.c:3202 #75 0x000056524e983191 in call_func (funcname=0x5652511bdf00 "\200\375R28_Trampoline", len=<optimized out>, rettv=0x0, argcount_in=<optimized out>, argvars_in=<optimized out>, funcexe=funcexe@entry=0x7ffdeeccd490) at userfunc.c:3758 #76 0x000056524e98557f in call_callback (callback=callback@entry=0x565251183358, len=0, len@entry=-1, rettv=0x0, rettv@entry=0x7ffdeeccd580, argcount=0, argcount@entry=1, argvars=0x0, argvars@entry=0x7ffdeeccd560) at userfunc.c:3503 #77 0x000056524e971aa6 in timer_callback (timer=0x565251183320) at time.c:510 #78 check_due_timer () at time.c:582 #79 0x000056524e976a95 in ui_wait_for_chars_or_timer (wtime=4000, wait_func=0x56524e9d2360 <gui_wait_for_chars_3>, interrupted=0x7ffdeeccd638, ignore_input=0) at ui.c:455 #80 0x000056524e976653 in inchar_loop (buf=buf@entry=0x56524eaed7c9 <typebuf_init+57> "", maxlen=maxlen@entry=69, wtime=wtime@entry=-1, tb_change_cnt=tb_change_cnt@entry=5, wait_func=0x56524e9d2340 <gui_wait_for_chars_or_timer>, resize_func=resize_func@entry=0x0) at ui.c:384 #81 0x000056524e9cfadd in gui_wait_for_chars_buf (buf=0x56524eaed7c9 <typebuf_init+57> "", maxlen=69, wtime=-1, tb_change_cnt=5) at gui.c:3026 #82 0x000056524e97647f in ui_inchar (buf=buf@entry=0x56524eaed7c9 <typebuf_init+57> "", maxlen=69, wtime=wtime@entry=-1, tb_change_cnt=tb_change_cnt@entry=5) at ui.c:226 #83 0x000056524e8247e3 in inchar (buf=0x0, maxlen=207, wait_time=-1) at getchar.c:3766 #84 0x000056524e8287d3 in vgetorpeek (advance=advance@entry=1) at getchar.c:3547 #85 0x000056524e82792c in vgetc () at getchar.c:1739 #86 0x000056524e829bc6 in safe_vgetc () at getchar.c:1990 #87 0x000056524e88132f in normal_cmd (oap=oap@entry=0x7ffdeeccda10, toplevel=toplevel@entry=1) at normal.c:750 #88 0x000056524ea15b9d in main_loop (cmdwin=cmdwin@entry=0, noexmode=noexmode@entry=0) at main.c:1533 #89 0x000056524ea14f25 in vim_main2 () at main.c:887 #90 0x000056524ea13b3f in main (argc=<optimized out>, argv=<optimized out>) at main.c:433
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Closed #11961 as completed via 79cdf02.
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