On Sun, 14 Dec 2025 16:26:37 +0900 Takashi Yano via Cygwin <[email protected]> wrote:
> Recently, I have concerned that testsuite winsup.api/pthread/cancel2 fails > consistently. > > https://github.com/cygwin/cygwin/actions/runs/19926408142/job/57127200619 > > I'm not sure why this happens, but it also falis in my local environment. > I looked into this issue a bit, and found that access violation happnes > in CloseHandle() in _cygtls::remove(). > > And I am also not sure why at all, cancel2 works if CloseHandle()'s are > replaced with NtClose() as follows. > > diff --git a/winsup/cygwin/cygtls.cc b/winsup/cygwin/cygtls.cc > index 13d133f47..249c8cb18 100644 > --- a/winsup/cygwin/cygtls.cc > +++ b/winsup/cygwin/cygtls.cc > @@ -118,7 +118,7 @@ _cygtls::remove (DWORD wait) > { > HANDLE h = signal_arrived; > signal_arrived = NULL; > - CloseHandle (h); > + NtClose (h); > } > > if (locals.drivemappings) > @@ -148,7 +148,7 @@ _cygtls::remove (DWORD wait) > if (mutex) > { > ReleaseMutex (mutex); > - CloseHandle (mutex); > + NtClose (mutex); > } > } > > > Any idea? I forgot to mention that the thread crashes when canceled with PTHREAD_CANCEL_ASYNCHRONOUS. PTHREAD_CANCEL_DEFERRED works without the problem. -- Takashi Yano <[email protected]> -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
