From: Alexander Viro <aviro@redhat.com>
To: Peter Moody <pmoody@google.com>
Cc: linux-audit@redhat.com
Subject: Re: [PATCH] audit: grab a reference to context->pwd when it's cached
Date: Wed, 15 Aug 2012 21:26:42 -0400 [thread overview]
Message-ID: <20120816012642.GA10020@shell.devel.redhat.com> (raw)
In-Reply-To: <1345079613-27388-1-git-send-email-pmoody@google.com>
On Wed, Aug 15, 2012 at 06:13:33PM -0700, Peter Moody wrote:
> On certain systems, in certain pathalogical cases, current's cwd can
> be deleted while we're still processing a syscall. This should prevent
> the system from evicting the inode while we're still referencing it.
>
> This seems to fix the bug I reported here:
> https://www.redhat.com/archives/linux-audit/2012-August/msg00017.html
Sigh... The bug is real, but I really don't like the fix. Among other
things, it's going to cause cacheline bouncing from hell and not everyone
runs with audit sensibly disabled... Let me think for a while and see
if I can come up with something less unpleasant, OK?
next prev parent reply other threads:[~2012-08-16 1:26 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-16 1:13 [PATCH] audit: grab a reference to context->pwd when it's cached Peter Moody
2012-08-16 1:26 ` Alexander Viro [this message]
2012-08-16 1:41 ` Peter Moody
2012-08-20 17:19 ` Peter Moody
2012-09-25 17:03 ` Peter Moody
2012-09-26 13:50 ` Alexander Viro
2012-09-26 18:20 ` Peter Moody
2012-10-04 18:48 ` Peter Moody
2012-10-05 11:02 ` Jeff Layton
2012-10-05 12:55 ` Jeff Layton
2012-10-05 13:57 ` Peter Moody
2012-10-05 14:10 ` Jeff Layton
2012-10-05 14:26 ` Jeff Layton
2012-10-05 15:16 ` Peter Moody
2012-10-05 15:18 ` Peter Moody
2012-10-05 15:57 ` Peter Moody
2012-10-05 16:15 ` Jeff Layton
2012-10-05 17:04 ` Peter Moody
2012-10-05 19:41 ` Peter Moody
2012-10-08 12:23 ` Jeff Layton
2012-10-08 15:22 ` Peter Moody
2012-10-08 16:45 ` Peter Moody
2012-10-08 14:10 ` Jeff Layton
2012-10-05 20:23 ` Eric Sandeen
2012-10-07 3:22 ` Peter Moody
2012-10-08 18:48 ` Eric Sandeen
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