From: Jiri Slaby <jirislaby@gmail.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
ebiederm@xmission.com, roland@redhat.com,
linux-kernel@vger.kernel.org, Matthew Wilcox <matthew@wil.cx>
Subject: Re: [PATCH 1/1] signal: make group kill signal fatal
Date: Tue, 02 Jun 2009 14:54:52 +0200 [thread overview]
Message-ID: <4A25211C.8050504@gmail.com> (raw)
In-Reply-To: <20090525225150.GA12362@redhat.com>
On 05/26/2009 12:51 AM, Oleg Nesterov wrote:
> Heh. In this case you have another (long-standing) issue, please note
> the "if (p->flags & PF_EXITING)" check in wants_signal().
>
> There is no guarantee the signal will wake up the exiting task task.
> Even SIGKILL, even if you use wait_event_interruptible() instead of
> _killable.
Last question, doesn't wait_event_interruptible return immediately in
this case? signal_pending returns true due to non-captured signal which
killed the application and hence we are in the .release under these
special circumstances. I think this is not much expected behavior, is
it? Shouldn't be that signal dequeued/cleared instead?
next prev parent reply other threads:[~2009-06-02 12:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-24 20:47 [PATCH 1/1] signal: make group kill signal fatal Jiri Slaby
2009-05-25 0:07 ` Oleg Nesterov
2009-05-25 16:21 ` Jiri Slaby
2009-05-25 17:20 ` Oleg Nesterov
2009-05-25 18:15 ` Jiri Slaby
2009-05-25 22:51 ` Oleg Nesterov
2009-06-02 12:54 ` Jiri Slaby [this message]
2009-06-02 14:50 ` Oleg Nesterov
2009-06-03 1:52 ` Roland McGrath
2009-06-04 2:27 ` Oleg Nesterov
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