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From: Andreas Arnez <arnez@linux.vnet.ibm.com>
To: David Edelsohn <dje.gcc@gmail.com>
Cc: Pedro Alves <palves@redhat.com>,
	       Sergio Durigan Junior <sergiodj@redhat.com>,
	       GDB Patches <gdb-patches@sourceware.org>,
	       Edjunior Machado <emachado@redhat.com>
Subject: Re: [BuildBot] Notifications disabled for Debian-s390x-* and Fedora-ppc64*-* builders
Date: Mon, 18 Dec 2017 19:21:00 -0000	[thread overview]
Message-ID: <m3efnrsuyu.fsf@oc1027705133.ibm.com> (raw)
In-Reply-To: <CAGWvnynqs_19F96cUX_339E0rmppQ4piGnUZzCssYhKULn4Qkg@mail.gmail.com>	(David Edelsohn's message of "Fri, 15 Dec 2017 18:20:23 -0500")

On Fri, Dec 15 2017, David Edelsohn wrote:

> Reverting to an earlier revision of the DejaGNU Framework did not help.
>
> I also updated all of the packages installed on the Debian system,
> including the kernel, but the problem still remains.  make check is
> reporting a large number of timeouts in gdb.base and gdb.thread. At
> 300s per timeout, it adds up -- eventually to 9 hours.  Some of the
> log files are attached.

I can reproduce the hangs with native-gdbserver on s390x; at least for:

  display.exp
  step-over-trips-on-watchpoint.exp
  watchpoint-fork.exp
  watchpoints.exp

A bisect shows the culprit:

  https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=c65d6b55

Before this commit I see many FAILs with these tests, but no hangs.
(The FAILs are due to lack of hardware watchpoint support for gdbserver
on s390.  At some time I had started a patch for that; maybe I should
revive it...)

Even knowing the first broken commit, I'm not sure yet what causes the
hangs.  I'll look more into that tomorrow.

--
Andreas

  reply	other threads:[~2017-12-18 19:21 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-15 13:45 Sergio Durigan Junior
2017-12-15 13:54 ` David Edelsohn
2017-12-15 14:20   ` Sergio Durigan Junior
2017-12-15 14:34     ` David Edelsohn
2017-12-15 14:48       ` Pedro Alves
2017-12-15 15:06         ` David Edelsohn
2017-12-15 15:43           ` Pedro Alves
2017-12-15 15:53             ` David Edelsohn
2017-12-15 16:20               ` Pedro Alves
2017-12-15 17:29                 ` David Edelsohn
2017-12-15 18:55                   ` David Edelsohn
2017-12-15 19:20                     ` Pedro Alves
2017-12-15 23:20                       ` David Edelsohn
2017-12-18 19:21                         ` Andreas Arnez [this message]
2017-12-15 14:49       ` Sergio Durigan Junior
2017-12-15 21:19       ` Yao Qi
2017-12-15 22:40         ` David Edelsohn
2017-12-15 23:19           ` Sergio Durigan Junior
2017-12-19 10:12             ` Joel Brobecker
2017-12-19 11:15           ` Yao Qi
2018-01-15 22:29 ` [BuildBot] Notifications re-enabled for the Debian-s390x-* builders (was: Re: [BuildBot] Notifications disabled for Debian-s390x-* and Fedora-ppc64*-* builders) Sergio Durigan Junior

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