pipe hang issue when running as SYSTEM
Fri Mar 25 07:48:49 GMT 2022
Takashi Yano wrote:
>> Just got another report to MSYS2 of this behavior, this time from a Gitlab
>> CI runner that is running as a service and trying to pipe output from
>> Microsoft cl.exe while running configure. This user reports that 3.3.4
>> with your "[PATCH v2] Cygwin: pipe: Avoid deadlock for non-cygwin writer."
>> applied to it does not solve the problem.
> I can confirm the sample script hangs indeed if the script is
> running as SYSTEM account. However, in my test, the patch solves
> the issue.
> It would be very helpfull if a simple github repository with
> github actions, which can reproduce the issue, is provided.
In my environment with AD user account:
$ cmd.exe /c "type big_file" | :
The process tried to write to a nonexistent pipe.
$ cat big_file | :
*** starting debugger for pid NNN tid KKKKK
$ uname -a
CYGWIN_NT-10.0 ZZZZZZZ 3.3.4(0.341/5/3) 2022-01-31 19:35 x86_64 Cygwin
- no way to debug
- no error if run as administrator
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