From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id C5C653858408; Fri,  7 Jan 2022 17:07:22 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C5C653858408
From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug d/103944] New: [12 Regression] Testsuite hang due to
 libphobos/testsuite/libphobos.gc/forkgc2.d
Date: Fri, 07 Jan 2022 17:07:22 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: d
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: jakub at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: ibuclaw at gdcproject dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-103944-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Fri, 07 Jan 2022 17:07:22 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103944

            Bug ID: 103944
           Summary: [12 Regression] Testsuite hang due to
                    libphobos/testsuite/libphobos.gc/forkgc2.d
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: d
          Assignee: ibuclaw at gdcproject dot org
          Reporter: jakub at gcc dot gnu.org
  Target Milestone: ---

When trying to build gcc 12 snapshot in fedora using rpm, make check hangs,=
 but
what is weird is that the make process has no children and is stuck waiting=
 on
read from a jobserver file descriptor.
Strangely, during my (almost daily) normal bootstraps/regtests I'm not seei=
ng
this.
I think I've narrowed this down to the libphobos.gc/forkgc2.d test.
When running
make -j32 -k check-target-libphobos ALT_CC_UNDER_TEST=3Dgcc
ALT_CXX_UNDER_TEST=3Dg++
RUNTESTFLAGS=3D--target_board=3Dunix/'{,-fstack-protector-strong}'
I see it hang, again no children, but looking in detail into
libphobos/testsuite/ I see forkgc2.exe in an unfinished log there and
./forkgc2.exe process,
killing it manually make it succeed.=