From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Roland McGrath <roland@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>,
Oleg Nesterov <oleg@tv-sign.ru>
Subject: Re: [BUG] ptraced process waiting on syscall may return kernel internal errnos
Date: Thu, 07 Jun 2007 13:27:01 +1000 [thread overview]
Message-ID: <1181186821.14818.13.camel@localhost.localdomain> (raw)
In-Reply-To: <alpine.LFD.0.98.0706060811470.4205@woody.linux-foundation.org>
On Wed, 2007-06-06 at 08:35 -0700, Linus Torvalds wrote:
> So now we should do "recalc_sigpending()" only when signals may be
> *added*
> (where messing with the "blocked" mask obviously is a form of adding
> signals, and possibly the most common reason for having to recalculate
> the
> sigpending mask).
>
> Comments? This patch is _entirely_ and utterly untested, so I'm only
> saying that this "feels" safer and more correct to me.
Oh and we still need to at least do the if (tsk == current) thingy
for the DRM notifier hack...
Ben.
next prev parent reply other threads:[~2007-06-07 3:27 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-06 5:47 [BUG] ptraced process waiting on syscall may return kernel internal errnos Satoru Takeuchi
2007-06-06 10:59 ` Roland McGrath
2007-06-06 15:35 ` Linus Torvalds
2007-06-06 23:07 ` Paul Mackerras
2007-06-07 3:25 ` Benjamin Herrenschmidt
2007-06-07 3:27 ` Benjamin Herrenschmidt [this message]
2007-06-07 11:33 ` Satoru Takeuchi
2007-06-07 15:54 ` Linus Torvalds
2007-06-07 22:24 ` Benjamin Herrenschmidt
2007-06-08 3:18 ` Linus Torvalds
2007-06-08 5:30 ` Benjamin Herrenschmidt
2007-06-11 22:16 ` Benjamin Herrenschmidt
2007-06-08 3:07 ` Satoru Takeuchi
2007-06-13 22:06 ` Roland McGrath
2007-06-07 3:20 ` Benjamin Herrenschmidt
2007-06-13 15:15 ` Oleg Nesterov
2007-06-13 22:36 ` Benjamin Herrenschmidt
2007-06-13 23:01 ` Roland McGrath
2007-06-13 23:18 ` Benjamin Herrenschmidt
2007-06-14 0:02 ` Roland McGrath
2007-06-13 22:53 ` Roland McGrath
2007-06-14 12:26 ` Rafael J. Wysocki
2007-06-14 12:58 ` Oleg Nesterov
2007-06-14 23:35 ` Rafael J. Wysocki
2007-06-15 11:31 ` Oleg Nesterov
2007-06-15 21:48 ` Rafael J. Wysocki
2007-06-15 0:06 ` Benjamin Herrenschmidt
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