DMARC-Filter:	OpenDMARC Filter v1.4.2 delorie.com 53M1H91g1298900
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 53M1H91g1298900
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=QCDzGKWu
X-Recipient:	archive-cygwin AT delorie DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org CC49A3858420
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1745284627;
	bh=bJABfAIFJ3h0GA4yAIvwTXsvPl8jN6nn3otis/IlL8M=;
	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=QCDzGKWucIet/LlDa5SYIVafLp7z/FC20FKtfUIuPud9XI6FOrNDMLb9n9fgVnSaL
	jNzVTPAKI8QtDiUWb98tG/D+cLRUjeYicvrG4E/DKzngcJETYdqY1g1GjMCkymPXJC
	YqZ/QLnIakv9ED6+f6ACxpTxTrkwRtJiRc9+ARdk=
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.4.2 sourceware.org EB4C63858C2D
ARC-Filter:	OpenARC Filter v1.0.0 sourceware.org EB4C63858C2D
ARC-Seal:	i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1745284593; cv=none;
	b=M0jNNhn/ucwTi3pZqkof3R+6HsRpMMg+ZlXuj/OypjXZklwSW0SR+NZ6pUte81iKi1s/s+yS9XVuk6QhwSLmwYMrEJaGVmcj5trLW6PCcw2iwuNwmzu9WuCRt25npuL8hKX5vSKZvyMWvHDn2hkM+MXKbVgkhtTsaGJhY3n2Xkw=
ARC-Message-Signature:	i=1; a=rsa-sha256; d=sourceware.org; s=key;
	t=1745284593; c=relaxed/simple;
	bh=6NES/E3iCqso/GqOKSEgyzUYVjvcUYjjl5UcHE20xqQ=;
	h=Date:From:To:Subject:Message-Id:Mime-Version:DKIM-Signature;
	b=ibfEYt1W4YXSgyG1lgWhtoG5Y15VENdtLDxXfd6x59RzpDIH1GEt1UqkFCchLdvHWiir6WmMHZt1dhsmuuDCk9lwtSyAkuugjHFf/yXXffDpu963BGGYVTclInfMYDA+avs5UU0CdAo/uhrTefqCW7vUqT4am9JxIVYs8/NkajI=
ARC-Authentication-Results:	i=1; server2.sourceware.org
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org EB4C63858C2D
Date:	Tue, 22 Apr 2025 10:16:27 +0900
To:	cygwin AT cygwin DOT com
Subject:	Re: git testsuite "t1004-read-tree-m-u-wf.sh" test hang with Cygwin
	3.7.0 ...
Message-Id:	<20250422101627.7a4bd073c11a783474906b80@nifty.ne.jp>
In-Reply-To:	<CAKAoaQnU5rFO8nF3CkXBojXGDR=4HkPu_FcZOOa+BRrh8QKMBw@mail.gmail.com>
References:	<CAKAoaQnU5rFO8nF3CkXBojXGDR=4HkPu_FcZOOa+BRrh8QKMBw AT mail DOT gmail DOT com>
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>

On Mon, 21 Apr 2025 21:54:03 +0200
Roland Mainz via Cygwin <cygwin AT cygwin DOT com> wrote:

> Hi!
> 
> ----
> 
> Running the git testsuite I got a hang of the
> "t1004-read-tree-m-u-wf.sh" test in Cygwin 3.7 - the same test worked
> AFAIK OK with Cygwin 3.5.x.
> 
> My guess: |wait_sig()| and |_sigfe()| are involved, maybe this is a
> signal issue..
> 
> 1. Versions: Cygwin 3.7.0-0.68.g37c49decc835.x86_64 / Windows 10
> 2. Steps to reproduce:
> ---- snip ----
> mkdir gittest
> cd gittest/
> git clone -b 'v2.45.1' https://github.com/git/git.git
> cd git
> autoconf
> automake
> CC="gcc -std=gnu17" ./configure
> time make -j4 all
> time nice make -i test
> ---- snip ----
> 


Thanks for the report. However, I could not reproduce the issue.
The cygwin version is 3.7.0-dev-68-g37c49decc835

There was two problems.

1. automake error
$ automake
configure.ac: error: no proper invocation of AM_INIT_AUTOMAKE was found.
configure.ac: You should verify that configure.ac invokes AM_INIT_AUTOMAKE,
configure.ac: that aclocal.m4 is present in the top-level directory,
configure.ac: and that aclocal.m4 was recently regenerated (using aclocal)
automake-1.17: error: no 'Makefile.am' found for any configure output


2. testsuite runs without hang.

$ cat t1004-read-tree-m-u-wf.counts
total 17
success 16
fixed 0
broken 0
failed 0
missing_prereq ,SANITY


> Process "git merge-recursive branch-point -- side-b side-a" launched
> by "/bin/sh t1004-read-tree-m-u-wf.sh" hangs forever with this stack
> trace:
> ---- snip ----
> Thread 3 (Thread 8148.0x1238 "commune"):
> #0  0x00007ffe68f8d574 in ntdll!ZwWaitForSingleObject () from
> /cygdrive/c/Windows/SYSTEM32/ntdll.dll
> #1  0x00007ffe66b4920e in WaitForSingleObjectEx () from
> /cygdrive/c/Windows/System32/KERNELBASE.dll
> #2  0x00007ffe333c5a82 in cygthread::stub
> (arg=arg AT entry=0x7ffe335b6618 <threads+88>) at
> /usr/src/debug/cygwin-3.7.0-0.68.g37c49decc835/winsup/cygwin/cygthread.cc:194
> #3  0x00007ffe333c6555 in _cygtls::call2 (this=0x5fce00,
> func=0x7ffe333c59de <cygthread::stub(void*)>, arg=0x7ffe335b6618
> <threads+88>, buf=buf AT entry=0x5fcd20) at
> /usr/src/debug/cygwin-3.7.0-0.68.g37c49decc835/winsup/cygwin/cygtls.cc:41
> #4  0x00007ffe333c660a in _cygtls::call (func=<optimized out>,
> arg=<optimized out>) at
> /usr/src/debug/cygwin-3.7.0-0.68.g37c49decc835/winsup/cygwin/cygtls.cc:28
> #5  0x00007ffe66f17374 in KERNEL32!BaseThreadInitThunk () from
> /cygdrive/c/Windows/System32/KERNEL32.DLL
> #6  0x00007ffe68f3cc91 in ntdll!RtlUserThreadStart () from
> /cygdrive/c/Windows/SYSTEM32/ntdll.dll
> #7  0x0000000000000000 in ?? ()

This does not seem to be a signal problem but be a thread creation
problem. I have no idea why and when this happens.

-- 
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 -