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	Tue, 28 May 2024 06:57:08 -0700 (PDT)
Date:	Tue, 28 May 2024 22:57:08 +0900
To:	cygwin AT cygwin DOT com
Subject:	Re: TeX Live 2024:: asympote 2.88-1 hangs after outputting a pdf
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From:	Lemures Lemniscati via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Lemures Lemniscati <lemures DOT lemniscati AT gmail DOT com>
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On Mon, 27 May 2024 11:14:29 -0400, Ken Brown via Cygwin
> 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?

(1) Keeping asymptote 2.88-1, I tested with packages rolled back:

Package                Version        Status
cygwin                 3.4.10-1       OK
cygwin-debuginfo       3.4.10-1       OK
dash                   0.5.12-2       OK
libunistring-debuginfo 1.1-1          OK
libunistring-devel     1.1-1          OK
libunistring5          1.1-1          OK
tar                    1.35-1         OK

uname -svrmo 
CYGWIN_NT-10.0-22631 3.4.10-1.x86_64 2023-11-29 12:12 UTC x86_64 Cygwin

Then, `HOME=/tmp asy -vv -f pdf test` hanged.
But, asy invoked by gdb did not hang...

(2) asymptote 2.85-1 with same packages
(ignoring warning about texlive 2024):

Then, `HOME=/tmp asy -vv -f pdf test` hanged.
But, asy invoked by gdb did not hang...

(3) asymptote 2.85-1 with packages (latest except asymptote)
(ignoring warning about texlive 2024):

Package                Version          Status
asymptote              2.85-1         OK
cygwin                 3.5.3-1        OK
cygwin-debuginfo       3.5.3-1        OK
dash                   0.5.12-5       OK
libunistring-debuginfo 1.2-1          OK
libunistring-devel     1.2-1          OK
libunistring5          1.2-1          OK
tar                    1.35-2         OK

CYGWIN_NT-10.0-22631 3.5.3-1.x86_64 2024-04-03 17:25 UTC x86_64 Cygwin

Then, `HOME=/tmp asy -vv -f pdf test` hanged.
And, asy invoked by gdb got a siganl SIGTRAP and stopped.




Rolling back cygwin packages has almost no effect.
Very weird... 

Now, I suspect any recent Windows Update might have to do with the issue...
(just because no other idea comes to me).
Not confirmed 


Lem


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