From: Al Viro <viro@ZenIV.linux.org.uk>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Eric Sandeen <sandeen@sandeen.net>,
Linux Kernel <linux-kernel@vger.kernel.org>,
xfs@oss.sgi.com, Dave Jones <davej@redhat.com>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: 3.14-rc2 XFS backtrace because irqs_disabled.
Date: Mon, 17 Feb 2014 17:54:07 +0000 [thread overview]
Message-ID: <20140217175407.GE18016@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20140217174648.GA6176@redhat.com>
On Mon, Feb 17, 2014 at 06:46:48PM +0100, Oleg Nesterov wrote:
> > pulling the logics *out* of kernel/signal.c and into arch/*.
>
> Not really, I think.
How so? You propose to make all architectures call do_coredump()
themselves, instead of having it done centrally. It's more boilerplate
for all of them to get wrong. And IME any boilerplate in that are
*will* be gotten wrong - I've gone through signal handling on all
architectures more than a few times and every time it caught a pile
of bugs...
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WARNING: multiple messages have this Message-ID (diff)
From: Al Viro <viro@ZenIV.linux.org.uk>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Dave Chinner <david@fromorbit.com>, Dave Jones <davej@redhat.com>,
Eric Sandeen <sandeen@sandeen.net>,
Linux Kernel <linux-kernel@vger.kernel.org>,
xfs@oss.sgi.com
Subject: Re: 3.14-rc2 XFS backtrace because irqs_disabled.
Date: Mon, 17 Feb 2014 17:54:07 +0000 [thread overview]
Message-ID: <20140217175407.GE18016@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20140217174648.GA6176@redhat.com>
On Mon, Feb 17, 2014 at 06:46:48PM +0100, Oleg Nesterov wrote:
> > pulling the logics *out* of kernel/signal.c and into arch/*.
>
> Not really, I think.
How so? You propose to make all architectures call do_coredump()
themselves, instead of having it done centrally. It's more boilerplate
for all of them to get wrong. And IME any boilerplate in that are
*will* be gotten wrong - I've gone through signal handling on all
architectures more than a few times and every time it caught a pile
of bugs...
next prev parent reply other threads:[~2014-02-17 17:54 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-11 17:27 3.14-rc2 XFS backtrace because irqs_disabled Dave Jones
2014-02-11 17:27 ` Dave Jones
2014-02-11 21:08 ` Dave Chinner
2014-02-11 21:08 ` Dave Chinner
2014-02-11 21:49 ` Eric Sandeen
2014-02-11 21:49 ` Eric Sandeen
2014-02-12 0:44 ` Dave Jones
2014-02-12 0:44 ` Dave Jones
2014-02-12 1:09 ` Al Viro
2014-02-12 1:09 ` Al Viro
2014-02-12 2:52 ` Linus Torvalds
2014-02-12 2:52 ` Linus Torvalds
2014-02-12 4:03 ` Dave Jones
2014-02-12 4:03 ` Dave Jones
2014-02-12 4:22 ` Al Viro
2014-02-12 4:22 ` Al Viro
2014-02-12 5:40 ` Dave Chinner
2014-02-12 5:40 ` Dave Chinner
2014-02-12 5:50 ` Dave Jones
2014-02-12 5:50 ` Dave Jones
2014-02-12 6:10 ` Dave Chinner
2014-02-12 6:10 ` Dave Chinner
2014-02-12 6:31 ` Dave Chinner
2014-02-12 6:31 ` Dave Chinner
2014-02-12 6:59 ` Linus Torvalds
2014-02-12 6:59 ` Linus Torvalds
2014-02-12 8:13 ` Tejun Heo
2014-02-12 8:13 ` Tejun Heo
2014-02-12 12:44 ` Steven Rostedt
2014-02-12 12:44 ` Steven Rostedt
2014-02-12 8:35 ` Dave Chinner
2014-02-12 8:35 ` Dave Chinner
2014-02-12 12:50 ` Steven Rostedt
2014-02-12 12:50 ` Steven Rostedt
2014-02-12 12:40 ` Steven Rostedt
2014-02-12 12:40 ` Steven Rostedt
2014-02-12 13:29 ` Peter Zijlstra
2014-02-12 13:29 ` Peter Zijlstra
2014-02-12 14:25 ` Dave Jones
2014-02-12 14:25 ` Dave Jones
2014-02-12 21:14 ` Dave Chinner
2014-02-12 21:14 ` Dave Chinner
2014-02-12 15:57 ` Eric Sandeen
2014-02-12 15:57 ` Eric Sandeen
2014-02-12 6:28 ` Linus Torvalds
2014-02-12 6:28 ` Linus Torvalds
2014-02-12 7:18 ` Dave Chinner
2014-02-12 7:18 ` Dave Chinner
2014-02-14 0:24 ` Dave Chinner
2014-02-14 0:24 ` Dave Chinner
2014-02-14 16:01 ` Dave Jones
2014-02-14 16:01 ` Dave Jones
2014-02-15 22:23 ` Dave Chinner
2014-02-15 22:23 ` Dave Chinner
2014-02-15 22:28 ` Dave Jones
2014-02-15 22:28 ` Dave Jones
2014-02-15 22:43 ` Linus Torvalds
2014-02-15 22:43 ` Linus Torvalds
2014-02-15 23:50 ` Linus Torvalds
2014-02-15 23:50 ` Linus Torvalds
2014-02-15 23:50 ` Linus Torvalds
2014-02-18 1:27 ` Dave Chinner
2014-02-18 1:27 ` Dave Chinner
2014-02-18 1:27 ` Dave Chinner
2014-02-12 11:39 ` Al Viro
2014-02-12 11:39 ` Al Viro
2014-02-12 20:13 ` Linus Torvalds
2014-02-12 20:13 ` Linus Torvalds
2014-02-12 21:14 ` Al Viro
2014-02-12 21:14 ` Al Viro
2014-02-12 21:32 ` Linus Torvalds
2014-02-12 21:32 ` Linus Torvalds
2014-02-12 21:44 ` Al Viro
2014-02-12 21:44 ` Al Viro
2014-02-13 20:51 ` Al Viro
2014-02-13 20:51 ` Al Viro
2014-02-14 0:09 ` Al Viro
2014-02-14 0:09 ` Al Viro
2014-02-14 13:25 ` Christoph Hellwig
2014-02-14 13:25 ` Christoph Hellwig
2014-02-14 13:29 ` Richard Weinberger
2014-02-14 13:29 ` Richard Weinberger
2014-02-14 15:20 ` Al Viro
2014-02-14 15:20 ` Al Viro
2014-02-14 16:08 ` Oleg Nesterov
2014-02-14 16:08 ` Oleg Nesterov
2014-02-13 17:40 ` Oleg Nesterov
2014-02-13 17:40 ` Oleg Nesterov
2014-02-13 17:58 ` Linus Torvalds
2014-02-13 17:58 ` Linus Torvalds
2014-02-13 18:10 ` Oleg Nesterov
2014-02-13 18:10 ` Oleg Nesterov
2014-02-13 18:37 ` Oleg Nesterov
2014-02-13 18:37 ` Oleg Nesterov
2014-02-15 5:25 ` Al Viro
2014-02-15 5:25 ` Al Viro
2014-02-15 14:27 ` Oleg Nesterov
2014-02-15 14:27 ` Oleg Nesterov
2014-02-15 15:22 ` Al Viro
2014-02-15 15:22 ` Al Viro
2014-02-15 15:33 ` Oleg Nesterov
2014-02-15 15:33 ` Oleg Nesterov
2014-02-15 15:36 ` Al Viro
2014-02-15 15:36 ` Al Viro
2014-02-15 15:58 ` Al Viro
2014-02-15 15:58 ` Al Viro
2014-02-15 16:59 ` Al Viro
2014-02-15 16:59 ` Al Viro
2014-02-15 17:43 ` Oleg Nesterov
2014-02-15 17:43 ` Oleg Nesterov
2014-02-15 18:05 ` Al Viro
2014-02-15 18:05 ` Al Viro
2014-02-15 18:45 ` Oleg Nesterov
2014-02-15 18:45 ` Oleg Nesterov
2014-02-17 16:57 ` Oleg Nesterov
2014-02-17 16:57 ` Oleg Nesterov
2014-02-17 17:40 ` Al Viro
2014-02-17 17:40 ` Al Viro
2014-02-17 17:46 ` Oleg Nesterov
2014-02-17 17:46 ` Oleg Nesterov
2014-02-17 17:54 ` Al Viro [this message]
2014-02-17 17:54 ` Al Viro
2014-02-14 16:13 ` Christoph Hellwig
2014-02-14 16:13 ` Christoph Hellwig
2014-02-14 16:16 ` Al Viro
2014-02-14 16:16 ` Al Viro
2014-02-14 16:18 ` Al Viro
2014-02-14 16:18 ` Al Viro
2014-02-14 16:19 ` Christoph Hellwig
2014-02-14 16:19 ` Christoph Hellwig
2014-02-15 14:46 ` Oleg Nesterov
2014-02-15 14:46 ` Oleg Nesterov
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