X crashes with SIGPIPE

[Henry Gebhardt]

Hi,

Cygwin/X crashes every few days for me. I managed to obtain a backtrace
from the last crash (attached). Server log is also included.

I have not, yet, managed to pin down the exact trigger for the crash. I
am running two graphical programs under Windows 10 WSL2 Debian: tilix
and evince.

Thank you for any help.

Best,
Henry
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$ gdb --pid=`pidof /usr/bin/XWin`
GNU gdb (GDB) (Cygwin 8.2.1-1) 8.2.1
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Attaching to process 2952
[New Thread 2952.0x1144]
[New Thread 2952.0x2178]
[New Thread 2952.0x22c4]
[New Thread 2952.0x95c]
[New Thread 2952.0x3958]
[New Thread 2952.0x3e88]
[New Thread 2952.0x3cdc]
[New Thread 2952.0x474]
[New Thread 2952.0x35e0]
[New Thread 2952.0x4398]
[New Thread 2952.0x2f04]
[New Thread 2952.0x40c0]
[New Thread 2952.0x3d9c]
[New Thread 2952.0x2d10]
[New Thread 2952.0xb40]
[New Thread 2952.0x138]
[New Thread 2952.0x2f38]
[New Thread 2952.0x261c]
[New Thread 2952.0x3f98]
[New Thread 2952.0xcc0]
[New Thread 2952.0x3ee0]
[New Thread 2952.0x3c08]
[New Thread 2952.0x1670]
[New Thread 2952.0x2b7c]
[New Thread 2952.0x2bf0]
[New Thread 2952.0xbc8]
[New Thread 2952.0x128c]
Reading symbols from /usr/bin/XWin.exe...Reading symbols from /usr/lib/debug//usr/bin/XWin.exe.dbg...done.
done.
(gdb) c
Continuing.
[Thread 2952.0x128c exited with code 0]
[New Thread 2952.0x2530]
[New Thread 2952.0x3cd4]
[Thread 2952.0x2530 exited with code 0]
[Thread 2952.0x3cd4 exited with code 0]
[New Thread 2952.0x30b4]
[New Thread 2952.0x30a0]

Thread 1 received signal SIGPIPE, Broken pipe.
[Switching to Thread 2952.0x1144]
0x000000010053f250 in _XSERVTransSocketWritev (ciptr=0xffffbb18,
    buf=0xffffbc10, size=-17396) at /usr/include/X11/Xtrans/Xtranssock.c:2382
2382    /usr/include/X11/Xtrans/Xtranssock.c: No such file or directory.
(gdb) bt full
#0  0x000000010053f250 in _XSERVTransSocketWritev (ciptr=0xffffbb18,
    buf=0xffffbc10, size=-17396) at /usr/include/X11/Xtrans/Xtranssock.c:2382
No locals.
#1  0x0000000000000000 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb)
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