我在使用 Pinta 程序时遇到了问题，我真的很想使用它。它出现了错误，说实话，仅通过查看“错误日志”，我无法弄清楚该在哪里查找。也许，您可以为我指明正确的方向，也许给我一些资源、网站、pdf 等，以便我将来自己处理这个问题。
非常感谢。错误如下：
free(): invalid pointer
Stacktrace:
at <unknown> <0xffffffff>
at (wrapper managed-to-native) GLib.SList.g_free (intptr) <0x0005f>
at GLib.ListBase.Empty () <0x0013c>
at GLib.ListBase.Dispose (bool) <0x0000f>
at GLib.ListBase.Finalize () <0x0001d>
at (wrapper runtime-invoke) object.runtime_invoke_virtual_void__this__ (object,intptr,intptr,intptr) <0x00068>
Native stacktrace:
/usr/bin/mono(+0xc8514) [0x55dbc8992514]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x12890) [0x7f2dfab9d890]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7) [0x7f2dfa5c0e97]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x141) [0x7f2dfa5c2801]
/lib/x86_64-linux-gnu/libc.so.6(+0x89897) [0x7f2dfa60b897]
/lib/x86_64-linux-gnu/libc.so.6(+0x9090a) [0x7f2dfa61290a]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x4cc) [0x7f2dfa619e1c]
[0x41ffbbb0]
Debug info from gdb:
[New LWP 15616]
[New LWP 15617]
[New LWP 15618]
[New LWP 15619]
[New LWP 15621]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f2dfa696bf9 in __GI___poll (fds=0x55dbca1e8410, nfds=3, timeout=500) at ../sysdeps/unix/sysv/linux/poll.c:29
29 ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
Id Target Id Frame
* 1 Thread 0x7f2dfb759780 (LWP 15615) "Main" 0x00007f2dfa696bf9 in __GI___poll (fds=0x55dbca1e8410, nfds=3, timeout=500) at ../sysdeps/unix/sysv/linux/poll.c:29
2 Thread 0x7f2df93ff700 (LWP 15616) "SGen worker" 0x00007f2dfab989f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55dbc8e85a08) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
3 Thread 0x7f2df73d2700 (LWP 15617) "Finalizer" 0x00007f2dfab9d23a in __waitpid (pid=15630, stat_loc=0x7f2df73d086c, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30
4 Thread 0x7f2de8af1700 (LWP 15618) "gmain" 0x00007f2dfa696bf9 in __GI___poll (fds=0x55dbc9b271f0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
5 Thread 0x7f2de3fff700 (LWP 15619) "gdbus" 0x00007f2dfa696bf9 in __GI___poll (fds=0x55dbc9b60f50, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
6 Thread 0x7f2de0a5c700 (LWP 15621) "pool" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
Thread 6 (Thread 0x7f2de0a5c700 (LWP 15621)):
#0 0x00007f2dfa69d839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1 0x00007f2df423e89a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f2df41cb571 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f2df41cbb2c in g_async_queue_timeout_pop () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f2df4220c3e in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f2df4220195 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6 0x00007f2dfab926db in start_thread (arg=0x7f2de0a5c700) at pthread_create.c:463
#7 0x00007f2dfa6a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 5 (Thread 0x7f2de3fff700 (LWP 15619)):
#0 0x00007f2dfa696bf9 in __GI___poll (fds=0x55dbc9b60f50, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f2df41f85c9 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f2df41f8962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f2df4c490e6 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4 0x00007f2df4220195 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f2dfab926db in start_thread (arg=0x7f2de3fff700) at pthread_create.c:463
#6 0x00007f2dfa6a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 4 (Thread 0x7f2de8af1700 (LWP 15618)):
#0 0x00007f2dfa696bf9 in __GI___poll (fds=0x55dbc9b271f0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f2df41f85c9 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f2df41f86dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f2df41f8721 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f2df4220195 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f2dfab926db in start_thread (arg=0x7f2de8af1700) at pthread_create.c:463
#6 0x00007f2dfa6a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 3 (Thread 0x7f2df73d2700 (LWP 15617)):
#0 0x00007f2dfab9d23a in __waitpid (pid=15630, stat_loc=0x7f2df73d086c, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30
#1 0x000055dbc89925f0 in ()
#2 0x00007f2dfab9d890 in <signal handler called> () at /lib/x86_64-linux-gnu/libpthread.so.0
#3 0x00007f2dfa5c0e97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#4 0x00007f2dfa5c2801 in __GI_abort () at abort.c:79
#5 0x00007f2dfa60b897 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f2dfa738b9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#6 0x00007f2dfa61290a in malloc_printerr (str=str@entry=0x7f2dfa736d88 "free(): invalid pointer") at malloc.c:5350
#7 0x00007f2dfa619e1c in _int_free (have_lock=0, p=0x55dbca0bfb70, av=0x7f2dfa96dc40 <main_arena>) at malloc.c:4157
#8 0x00007f2dfa619e1c in __GI___libc_free (mem=0x55dbca0bfb80) at malloc.c:3124
#9 0x0000000041ffbbb0 in ()
#10 0x000055dbca0bfb80 in ()
#11 0x000055dbc97b40d0 in ()
#12 0x000055dbc97b40d0 in ()
#13 0x0000000000000000 in ()
Thread 2 (Thread 0x7f2df93ff700 (LWP 15616)):
#0 0x00007f2dfab989f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55dbc8e85a08) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1 0x00007f2dfab989f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55dbc8e85a20, cond=0x55dbc8e859e0) at pthread_cond_wait.c:502
#2 0x00007f2dfab989f3 in __pthread_cond_wait (cond=0x55dbc8e859e0, mutex=0x55dbc8e85a20) at pthread_cond_wait.c:655
#3 0x000055dbc8b1a863 in ()
#4 0x00007f2dfab926db in start_thread (arg=0x7f2df93ff700) at pthread_create.c:463
#5 0x00007f2dfa6a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 1 (Thread 0x7f2dfb759780 (LWP 15615)):
#0 0x00007f2dfa696bf9 in __GI___poll (fds=0x55dbca1e8410, nfds=3, timeout=500) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f2df41f85c9 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f2df41f8962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f2df63b3a37 in gtk_main () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#4 0x0000000041fe43aa in ()
#5 0x00007ffe639d5e50 in ()
#6 0x00007ffe639d5e40 in ()
#7 0x00007f2df9400950 in ()
#8 0x00007f2df9400d60 in ()
#9 0x00007f2df9400db0 in ()
#10 0x000055dbc97e6d70 in ()
#11 0x0000000041ebd6d0 in ()
#12 0x00007ffe639d59d0 in ()
#13 0x00007ffe639d5880 in ()
#14 0x0000000041fe433c in ()
#15 0x00007ffe639d59d0 in ()
#16 0x0000000041ebd688 in ()
#17 0x00007f2df94021f0 in ()
#18 0x00007f2df9400788 in ()
#19 0x00007f2df94021f0 in ()
#20 0x00007f2dfb654130 in ()
#21 0x00007f2df9400788 in ()
#22 0x00007f2df94021f0 in ()
#23 0x00007f2dfb650130 in ()
#24 0x00007f2df9400788 in ()
#25 0x00007f2df94021f0 in ()
#26 0x00007f2dfb648130 in ()
#27 0x00007f2df9400400 in ()
#28 0x0000000000000000 in ()
=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================
Aborted (core dumped)