From: Al Viro <viro@ZenIV.linux.org.uk>
To: Dave Jones <davej@redhat.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: VFS deadlock ?
Date: Thu, 21 Mar 2013 20:47:04 +0000 [thread overview]
Message-ID: <20130321204704.GZ21522@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20130321203639.GC16406@redhat.com>
On Thu, Mar 21, 2013 at 04:36:39PM -0400, Dave Jones wrote:
> at some point during the fuzz run, this happened..
>
> Mar 20 15:20:41 kernel: [ 7578.784674] fuse init (API version 7.21)
> Mar 20 15:20:41 systemd[1]: Mounting FUSE Control File System...
> Mar 20 15:20:41 systemd[1]: Mounted FUSE Control File System.
>
> I guess something wandered into /dev/fuse and did something. Not sure why
> systemd reacted though...
AFAICS, fuse uses d_materialise_unique() and d_splice_alias(), though, so
it's not too likely source of that crap; there's no d_instantiate() calls
at all and the sole d_add() is using an inode that has just been allocated,
so it won't be creating aliases either...
next prev parent reply other threads:[~2013-03-21 20:47 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-21 19:06 Dave Jones
2013-03-21 19:21 ` Al Viro
2013-03-21 20:31 ` Dave Jones
2013-03-21 19:29 ` Al Viro
2013-03-21 20:15 ` Linus Torvalds
2013-03-21 20:26 ` Dave Jones
2013-03-21 20:32 ` Linus Torvalds
2013-03-21 20:36 ` Dave Jones
2013-03-21 20:47 ` Al Viro [this message]
2013-03-21 21:02 ` Dave Jones
2013-03-21 21:18 ` Linus Torvalds
2013-03-21 21:26 ` Al Viro
2013-03-21 21:41 ` Dave Jones
2013-03-21 21:47 ` Linus Torvalds
2013-03-21 21:55 ` Al Viro
2013-03-21 21:57 ` Linus Torvalds
2013-03-21 22:03 ` Al Viro
2013-03-21 21:52 ` Al Viro
2013-03-21 22:12 ` Dave Jones
2013-03-21 22:29 ` Dave Jones
2013-03-21 22:53 ` Linus Torvalds
2013-03-21 23:07 ` Dave Jones
2013-03-21 23:36 ` Al Viro
2013-03-21 23:58 ` Linus Torvalds
2013-03-22 0:01 ` Linus Torvalds
2013-03-22 0:12 ` Al Viro
2013-03-22 0:20 ` Al Viro
2013-03-22 0:22 ` Linus Torvalds
2013-03-22 1:22 ` Al Viro
2013-03-22 1:33 ` Linus Torvalds
2013-03-22 1:40 ` Al Viro
2013-03-22 4:37 ` [CFT] " Al Viro
2013-03-22 4:55 ` Linus Torvalds
2013-03-22 5:18 ` Al Viro
2013-03-22 5:33 ` Linus Torvalds
2013-03-22 6:09 ` Al Viro
2013-03-22 6:22 ` Al Viro
2013-03-22 16:23 ` Dave Jones
2013-03-22 19:43 ` Linus Torvalds
2013-03-22 21:28 ` Al Viro
2013-03-22 22:57 ` Eric W. Biederman
2013-03-22 5:19 ` Linus Torvalds
2013-03-22 0:08 ` Al Viro
2013-03-22 0:15 ` Linus Torvalds
2013-03-22 0:19 ` Linus Torvalds
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