occasional crash on startup

[zzshan16]

mlterm crashes on startup occasionally and i have seen the following messages when starting mlterm:
"malloc(): mismatching next->prev_size (unsorted)"
"Fatal glibc error: malloc assertion failure in _int_malloc: (unsigned long) (size) >= (unsigned long) (nb)"
"malloc(): invalid size (unsorted)"

it happens rarely. i can reproduce it only by starting many instances of mlterm until it occurs
(using mlterm version 3.9.2 from gentoo)

[arakiken]

Thanks.
Does it happen if you start mlterm with --type=xft or --type=xcore option ?

[zzshan16]

misclick sorry. I tried both those options and i still get the error
"malloc(): invalid size (unsorted)"
it happens very rarely

[hramrach]

I get reproducible crash on startup:

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7ffff6dff6c0 (LWP 19583)]
*** buffer overflow detected ***: terminated

Thread 1 "mlterm-sdl2" received signal SIGABRT, Aborted.
__pthread_kill_implementation (threadid=, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44

[hramrach]

This one only affects SDL build so it's probably different one form the original.

[arakiken]

Thanks very much for reporting mlterm-sdl2 problem and creating a pull request to fix it.