From: Kevin Buettner <kevinb@cygnus.com>
To: Mark Kettenis <kettenis@science.uva.nl>
Cc: gdb-patches@sources.redhat.com
Subject: Re: [PATCH RFA] lin-lwp.c: Block SIGCHLD events when attaching
Date: Thu, 08 Nov 2001 19:19:00 -0000 [thread overview]
Message-ID: <1011121222640.ZM21970@ocotillo.lan> (raw)
In-Reply-To: Mark Kettenis <kettenis@science.uva.nl> "Re: [PATCH RFA] lin-lwp.c: Block SIGCHLD events when attaching" (Nov 21, 12:52pm)
On Nov 21, 12:52pm, Mark Kettenis wrote:
> Kevin Buettner <kevinb@cygnus.com> writes:
>
> > When doing a lin_lwp_attach_lwp(), it is sometimes possible to receive
> > a SIGCHLD signal thus causing the waitpid() call to fail with EINTR.
> > This in turn causes the second assert() in lin_lwp_attach_lwp() to
> > fail.
>
> Thanks for tracking this down. Note that getting this EINTR is a
> side-effect of the tricks we play with sigsuspend in lin_lwp_wait.
>
> > The fix is below. Okay to commit?
>
> Looks fine to me. lin_lwp_attach_lwp() should not be called unless
> the inferior is already running so blocking SIGCHLD here is OK.
Committed.
prev parent reply other threads:[~2001-11-21 22:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-07 15:07 Kevin Buettner
2001-11-07 15:15 ` H . J . Lu
2001-11-07 19:05 ` Kevin Buettner
2001-11-07 19:37 ` Kevin Buettner
2001-11-07 20:26 ` H . J . Lu
2001-11-07 22:45 ` Kevin Buettner
2001-11-07 22:48 ` Kevin Buettner
2001-11-07 23:21 ` H . J . Lu
2001-11-08 10:55 ` Kevin Buettner
2001-11-08 10:25 ` H . J . Lu
2001-11-08 13:03 ` Mark Kettenis
2001-11-08 19:19 ` Kevin Buettner [this message]
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