On 5/27/2024 5:17 AM, Lemures Lemniscati via Cygwin wrote:
On Sun, 26 May 2024 18:02:54 -0400, Ken Brown via Cygwin
Here is a log from gdb. Will it help?
run
info threads
info stack
list
$ HOME=/tmp gdb --args asy -vv -f pdf test
[...]
Thread 5 "sig" received signal SIGTRAP, Trace/breakpoint trap.
I don't get this SIGRAP when I run the same command. The program just
runs to completion. Maybe someone can explain what might cause this. I
have no idea.
[Switching to Thread 10728.0x4c0c]
0x00007ffd8487d313 in KERNELBASE!DebugBreak () from
/cygdrive/c/WINDOWS/System32/KERNELBASE.dll
(gdb) info threads
Id Target Id Frame
1 Thread 10728.0x57c8 "asy" 0x00007ffd871b04a4 in
ntdll!ZwWaitForMultipleObjects () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
2 Thread 10728.0xa9c 0x00007ffd871b35a4 in
ntdll!ZwWaitForWorkViaWorkerFactory () from
/cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
3 Thread 10728.0x3ed0 0x00007ffd871b35a4 in
ntdll!ZwWaitForWorkViaWorkerFactory () from
/cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
4 Thread 10728.0xbd0 0x00007ffd871b35a4 in
ntdll!ZwWaitForWorkViaWorkerFactory () from
/cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
* 5 Thread 10728.0x4c0c "sig" 0x00007ffd8487d313 in
KERNELBASE!DebugBreak () from /cygdrive/c/WINDOWS/System32/KERNELBASE.dll
7 Thread 10728.0x29d0 "asy" 0x00007ffd871b04a4 in
ntdll!ZwWaitForMultipleObjects () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
8 Thread 10728.0x4ec8 "asy" 0x00007ffd871b04a4 in
ntdll!ZwWaitForMultipleObjects () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
9 Thread 10728.0x2cfc "asy" 0x00007ffd871b04a4 in
ntdll!ZwWaitForMultipleObjects () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
10 Thread 10728.0x47bc "asy" 0x00007ffd871b04a4 in
ntdll!ZwWaitForMultipleObjects () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
11 Thread 10728.0x22d0 "asy" 0x00007ffd871b04a4 in
ntdll!ZwWaitForMultipleObjects () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
12 Thread 10728.0x4268 "asy" 0x00007ffd871b04a4 in
ntdll!ZwWaitForMultipleObjects () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
13 Thread 10728.0x2f94 "asy" 0x00007ffd871b04a4 in
ntdll!ZwWaitForMultipleObjects () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
14 Thread 10728.0x43cc "waitproc" 0x00007ffd871af9d4 in
ntdll!ZwWaitForSingleObject () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
The one thing that strikes me about this is the large number of "asy"
threads. There was a recent bug report about multithreading in
cygwin-3.5.3:
https://cygwin.com/pipermail/cygwin/2024-May/255987.html
Can you try installing a 3.4.x version of cygwin and see if you still
get the hang?
Ken
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