Sporadic crashes when trying to open a file

[pgengler]

Sometimes (not always), when using tab completion to open a file into a new buffer, pinot crashes.

[pgengler]

Here's a GDB backtrace from one such crash:

(gdb) bt
#0  malloc_consolidate (av=av@entry=0x7ffff6d37760 <main_arena>) at malloc.c:4151
#1  0x00007ffff69f8878 in _int_malloc (av=0x7ffff6d37760 <main_arena>, bytes=1152) at malloc.c:3423
#2  0x00007ffff69fb230 in __GI___libc_malloc (bytes=1152) at malloc.c:2891
#3  0x0000000000430576 in nmalloc (howmuch=howmuch@entry=1152) at utils.cpp:431
#4  0x000000000043121c in display_string (buf=0x7c8308 "../do-code-exercise/scrape.txt", start_col=start_col@entry=0, len=160, dollars=dollars@entry=false) at winio.cpp:246
#5  0x00000000004317f6 in display_string (buf=..., start_col=start_col@entry=0, len=<optimized out>, dollars=dollars@entry=false) at winio.cpp:193
#6  0x0000000000420d8d in update_statusbar_line (curranswer=..., index=<optimized out>) at prompt.cpp:662
#7  0x0000000000422265 in get_prompt_string (actual=..., allow_tabs=allow_tabs@entry=true, allow_files=allow_files@entry=true, curranswer=..., history_list=history_list@entry=0x0,
    refresh_func=refresh_func@entry=0x434330 <edit_refresh()>, menu=menu@entry=64, list=list@entry=0x7fffffffd307) at prompt.cpp:768
#8  0x0000000000422a07 in do_prompt (allow_tabs=allow_tabs@entry=true, allow_files=allow_files@entry=true, menu=64, key=..., curranswer=..., history_list=history_list@entry=0x0,
    refresh_func=0x434330 <edit_refresh()>, msg=0x4398c0 "File to insert into new buffer [from %s] ") at prompt.cpp:918
#9  0x0000000000414864 in do_insertfile (execute=execute@entry=false) at files.cpp:1013
#10 0x0000000000414f7d in do_insertfile_void () at files.cpp:1190
#11 0x0000000000420473 in do_input () at pinot.cpp:1280
#12 0x0000000000406dc5 in main (argc=2, argv=0x7fffffffdb78) at pinot.cpp:2010

[pgengler]

One thing to note is that the crash occurs while tab-completing the filename, not while actually opening the file.