From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Jeff Dike <jdike@addtoit.com>
Cc: Nicholas Miell <nmiell@comcast.net>,
Davide Libenzi <davidel@xmailserver.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Paul Mackerras <paulus@samba.org>
Subject: Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
Date: Thu, 07 Jun 2007 13:21:57 +1000 [thread overview]
Message-ID: <1181186517.14818.7.camel@localhost.localdomain> (raw)
In-Reply-To: <20070606125259.GA5491@c2.user-mode-linux.org>
On Wed, 2007-06-06 at 08:52 -0400, Jeff Dike wrote:
> On Wed, Jun 06, 2007 at 12:50:04PM +1000, Benjamin Herrenschmidt wrote:
> > Yeah, synchronous signals should probably never be delivered to another
> > process, even via signalfd. There's no point delivering a SEGV to
> > somebody else :-)
>
> Sure there is. UML does exactly that - intercepting child signals
> (including SEGV) with wait.
UML is definitely what I call a special case :-) Now the question is how
do you get them ? Are you via some code path I haven't figured out
calling dequeue_signal() from another context ?
Ben.
next prev parent reply other threads:[~2007-06-07 3:22 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-05 1:25 [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes Benjamin Herrenschmidt
2007-06-05 1:44 ` Linus Torvalds
2007-06-05 2:10 ` Benjamin Herrenschmidt
2007-06-05 2:38 ` Davide Libenzi
2007-06-05 3:22 ` Benjamin Herrenschmidt
2007-06-05 6:09 ` Nicholas Miell
2007-06-05 7:27 ` Benjamin Herrenschmidt
2007-06-05 23:51 ` Nicholas Miell
2007-06-06 0:03 ` Benjamin Herrenschmidt
2007-06-06 0:11 ` Davide Libenzi
2007-06-06 0:15 ` Nicholas Miell
2007-06-06 0:37 ` Davide Libenzi
2007-06-06 0:58 ` signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes) Nicholas Miell
2007-06-06 2:50 ` Benjamin Herrenschmidt
2007-06-06 3:29 ` Davide Libenzi
2007-06-06 3:37 ` Linus Torvalds
2007-06-06 4:08 ` Nicholas Miell
2007-06-06 4:18 ` Benjamin Herrenschmidt
2007-06-06 4:35 ` Davide Libenzi
2007-06-06 6:47 ` Benjamin Herrenschmidt
2007-06-06 22:36 ` Davide Libenzi
2007-06-06 3:52 ` Benjamin Herrenschmidt
2007-06-06 12:52 ` Jeff Dike
2007-06-06 22:43 ` Paul Mackerras
2007-06-07 2:20 ` Jeff Dike
2007-06-07 3:29 ` Benjamin Herrenschmidt
2007-06-07 13:59 ` Jeff Dike
2007-06-07 3:21 ` Benjamin Herrenschmidt [this message]
2007-06-05 15:52 ` [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes Davide Libenzi
2007-06-05 22:15 ` Benjamin Herrenschmidt
2007-06-05 22:50 ` Davide Libenzi
2007-06-05 22:59 ` Benjamin Herrenschmidt
2007-06-06 0:11 ` Davide Libenzi
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