From: Arjan van de Ven <arjan@infradead.org>
To: "Olaf Frączyk" <olaf@cbk.poznan.pl>
Cc: Theodore Tso <tytso@mit.edu>, Miklos Szeredi <miklos@szeredi.hu>,
hch@infradead.org, pavel@suse.cz, t-sato@yk.jp.nec.com,
akpm@linux-foundation.org, viro@ZenIV.linux.org.uk,
linux-ext4@vger.kernel.org, xfs@oss.sgi.com, dm-devel@redhat.com,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
axboe@kernel.dk, mtk.manpages@googlemail.com
Subject: Re: [PATCH 3/3] Add timeout feature
Date: Wed, 9 Jul 2008 06:57:58 -0700 [thread overview]
Message-ID: <20080709065758.4ac6b3c5@infradead.org> (raw)
In-Reply-To: <1215608360.20914.14.camel@venus.local.navi.pl>
On Wed, 09 Jul 2008 14:59:20 +0200
Olaf Frączyk <olaf@cbk.poznan.pl> wrote:
> On Wed, 2008-07-09 at 08:24 -0400, Theodore Tso wrote:
> > On Wed, Jul 09, 2008 at 09:49:58PM +1000, Dave Chinner wrote:
> > > (e) none of the above. The kernel compilation will appear to
> > > pause until the filesystem is unfrozen. No other visible effect
> > > should occur. It will get blocked in a write or filesystem
> > > transaction because the fs is frozen.
> >
> > So if the process which froze the filesystem accidentally tries
> > writing to a log file (or database file containing the backup
> > information, or whatever) that happens to be on the filesystem that
> > is frozen, that process will get blocked and you end up in a
> > deadlock; did I get that right?
> Where do you see the deadlock?
> The process doesn't have a lock on filesystem or something. You can
> always unfreeze from another process.
>
if it's one of your main filesystems... good luck starting a shell
without writing a single thing to disk... FAIL.
next prev parent reply other threads:[~2008-07-09 13:57 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-30 12:24 [PATCH 3/3] Add timeout feature Takashi Sato
2008-07-01 8:10 ` Christoph Hellwig
2008-07-01 10:52 ` [dm-devel] " Alasdair G Kergon
2008-07-03 12:11 ` Takashi Sato
2008-07-03 12:47 ` Alasdair G Kergon
2008-07-03 22:11 ` Dave Chinner
2008-07-04 12:08 ` Takashi Sato
2008-07-03 14:45 ` Eric Sandeen
2008-07-07 11:07 ` Pavel Machek
2008-07-08 23:10 ` Dave Chinner
2008-07-08 23:20 ` Pavel Machek
2008-07-09 0:52 ` Dave Chinner
2008-07-09 1:09 ` Theodore Tso
2008-07-09 4:21 ` Brad Boyer
2008-07-09 6:13 ` Miklos Szeredi
2008-07-09 6:16 ` Christoph Hellwig
2008-07-09 6:22 ` Miklos Szeredi
2008-07-09 6:41 ` Arjan van de Ven
2008-07-09 6:48 ` Miklos Szeredi
2008-07-09 6:55 ` Arjan van de Ven
2008-07-09 7:08 ` Miklos Szeredi
2008-07-09 20:48 ` Pavel Machek
2008-07-09 7:13 ` Dave Chinner
2008-07-09 11:09 ` Theodore Tso
2008-07-09 11:49 ` Dave Chinner
2008-07-09 12:24 ` Theodore Tso
2008-07-09 12:59 ` Olaf Frączyk
2008-07-09 13:57 ` Arjan van de Ven [this message]
2008-07-09 13:55 ` Arjan van de Ven
2008-07-09 13:58 ` jim owens
2008-07-09 14:13 ` jim owens
[not found] ` <20080713120602.GC7517@elf.ucw.cz>
2008-07-13 17:15 ` jim owens
2008-07-14 6:36 ` Pavel Machek
2008-07-14 13:17 ` jim owens
2008-07-14 13:12 ` Takashi Sato
2008-07-14 14:04 ` jim owens
2008-07-09 13:53 ` Arjan van de Ven
2008-07-09 6:59 ` Dave Chinner
2008-07-09 7:13 ` Miklos Szeredi
2008-07-09 7:33 ` Dave Chinner
2008-07-09 8:11 ` Miklos Szeredi
2008-07-09 11:15 ` Dave Chinner
2008-07-09 20:44 ` Pavel Machek
-- strict thread matches above, loose matches on Subject: below --
2008-09-08 11:53 Takashi Sato
2008-09-08 17:11 ` Christoph Hellwig
2008-09-25 21:06 ` Ric Wheeler
2008-09-26 8:52 ` Takashi Sato
2008-09-26 10:58 ` Ric Wheeler
2008-09-29 11:11 ` Takashi Sato
2008-09-26 12:35 ` Valdis.Kletnieks
2008-09-29 14:13 ` Christoph Hellwig
2008-09-29 14:36 ` Eric Sandeen
2008-09-29 14:37 ` Christoph Hellwig
2008-09-29 14:45 ` Eric Sandeen
2008-09-29 22:08 ` jim owens
2008-10-05 10:00 ` Pavel Machek
2008-10-09 10:12 ` Takashi Sato
2008-10-09 10:18 ` Christoph Hellwig
2008-08-18 12:28 Takashi Sato
2008-08-21 20:20 ` Andrew Morton
2008-08-22 18:16 ` Christoph Hellwig
2008-08-24 17:03 ` Oleg Nesterov
2008-08-29 9:39 ` Takashi Sato
2008-07-22 9:36 Takashi Sato
2008-06-24 7:00 Takashi Sato
2008-06-24 22:09 ` Andrew Morton
2008-06-27 11:33 ` Takashi Sato
2008-06-27 18:57 ` Andrew Morton
2008-06-29 23:13 ` Takashi Sato
2008-06-30 0:01 ` Andrew Morton
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