DMARC-Filter:	OpenDMARC Filter v1.4.2 delorie.com 5BHAcXGX1163239
Authentication-Results:	delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com
Authentication-Results:	delorie.com; spf=pass smtp.mailfrom=cygwin.com
DKIM-Filter:	OpenDKIM Filter v2.11.0 delorie.com 5BHAcXGX1163239
Authentication-Results:	delorie.com;
	dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=Gni+nWkj
X-Recipient:	archive-cygwin AT delorie DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org 7CF7F4BA2E36
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1765967912;
	bh=2eHPKBBXQAg0YHWGG89qxln2H6A4dbFuud9M0v4NdhE=;
	h=Date:To:Subject:In-Reply-To:References:List-Id:List-Unsubscribe:
	List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:
	From;
	b=Gni+nWkjBRhRMW5AKTuBaAtt3a1IcZgahOJ4N+GhKNJfBUElQP+CJPGkk3LatsfGd
	fEkYAAHn4pplrtmki4mruRO49XEWcxUqweecGog5vSTi6uJ//9I6XgeFNkooqUKcmD
	A9nNtUNlYfmTAqDiAbvGkZb0nE2p30Xw4JGT5j7Y=
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.4.2 sourceware.org AA7514BA2E04
ARC-Filter:	OpenARC Filter v1.0.0 sourceware.org AA7514BA2E04
ARC-Seal:	i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1765967862; cv=none;
	b=RsMhPA2GfFFQE5y7VS8od3ywPbeW6fRtA5j5R35GIlDtwZG3eyARpEBjSi0axuirf943YMsdjcfMu3mS5BVrSfCiU8VymGDxDDOGO0wh9ucbvBtf7a3qPyR1K2j/GCltzNyDyBy+K41rKj5o+jZ3L5eUEyHHeiAcGD6JVbbm3/8=
ARC-Message-Signature:	i=1; a=rsa-sha256; d=sourceware.org; s=key;
	t=1765967862; c=relaxed/simple;
	bh=4qA6TcqrKzE0/IqdF/s2ReveHFscAigkVbuF0hYzJe8=;
	h=Date:From:To:Subject:Message-Id:Mime-Version:DKIM-Signature;
	b=hzRDv1R/M+EJl09e7e0rLLNQkZjXVl8slJ7Mrn2Zb+l2PxKxIAGwRBWe40aQlSw9tjTPXdGdeYeT9odf2oCEcXvETYKRIdKUqyHtBpiHoplsUHd9/cYCHUc5QgPp7u2XafgAs7Z6KWZSPMDppVPMJAX0uEmf1O25hNGWqyRSNb4=
ARC-Authentication-Results:	i=1; server2.sourceware.org
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org AA7514BA2E04
Date:	Wed, 17 Dec 2025 19:37:37 +0900
To:	cygwin AT cygwin DOT com
Subject:	Re: Recent testsuite/winsup.api/pthread/cancel2 failure
Message-Id:	<20251217193737.3d3d686ebe3865c183315dc5@nifty.ne.jp>
In-Reply-To:	<9d058204-fb3f-43b4-9e32-6adc7af12ff4@dronecode.org.uk>
References:	<20251214162637 DOT 1ee05b084788ba073fe94670 AT nifty DOT ne DOT jp>
	<20251214163936 DOT 6841fc62145d8f54cfa31fe7 AT nifty DOT ne DOT jp>
	<9d058204-fb3f-43b4-9e32-6adc7af12ff4 AT dronecode DOT org DOT uk>
X-Mailer:	Sylpheed 3.7.0 (GTK+ 2.24.30; i686-pc-mingw32)
Mime-Version:	1.0
X-BeenThere:	cygwin AT cygwin DOT com
X-Mailman-Version:	2.1.30
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe:	<https://cygwin.com/mailman/options/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<https://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From:	Takashi Yano via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
Errors-To:	cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com
Sender:	"Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

Hi Jon,

Thanks for the reply.

On Tue, 16 Dec 2025 13:11:15 +0000
Jon Turney wrote:
> On 14/12/2025 07:39, Takashi Yano via Cygwin wrote:
> > On Sun, 14 Dec 2025 16:26:37 +0900
> > Takashi Yano via Cygwin <cygwin AT cygwin DOT com> wrote:
> > 
> >> Recently, I have concerned that testsuite winsup.api/pthread/cancel2 fails
> >> consistently.
> >>
> >> https://github.com/cygwin/cygwin/actions/runs/19926408142/job/57127200619
> 
> Thanks very much for looking into this!
> 
> I have the vague idea that this problem started showing up (more?) when 
> the CI VM was upgraded from Windows Server 2022 to Windows Server 2025, 
> but I guess that's maybe just timings...

IIRC, this did not happen when I uses Win10. Now, I'm using Win11.

> >> 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.
> 
> I think this is just the difference between the two calls: CloseHandle 
> generates an exception whereas NtClose returns an error code if the 
> handle is invalid.
> 
> Doesn't really explain whats wrong with the handle, though.

I checked the return code of NtClose() and found the it is STATUS_SUCCESS.
If the handle is invalid, NtClose() returns error code, I think...

-- 
Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>

-- 
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

- Raw text -