From: Mike Fedyk <mfedyk@matchmail.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: marcel cotta <marcel@kriminell.com>,
linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
Subject: Re: 2.6.1: kernel BUG at mm/swapfile.c:806
Date: Fri, 16 Jan 2004 10:29:15 -0800 [thread overview]
Message-ID: <20040116182915.GL1748@srv-lnx2600.matchmail.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0401161618310.7487-100000@localhost.localdomain>
On Fri, Jan 16, 2004 at 05:05:55PM +0000, Hugh Dickins wrote:
> On Fri, 16 Jan 2004, marcel cotta wrote:
> > i just tried to less it - the process went right into D state :p
>
> That sounds like an issue that came up a month or two back: seems that
> sys_swapon intentionally leaves a semaphore down on a swapfile, until
> sys_swapoff. I don't like that at all! The noble reason was to stop
> that file from being deleted or truncated while in use for swap,
> but perhaps we can devise a better way to achieve that sometime -
> set S_IMMUTABLE?
Can't the kernel just keep a reference to the inode while it is used for
swap, and let it unlink after swapoff (and all other refs are gone) using
normal unix semantics?
next prev parent reply other threads:[~2004-01-16 18:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-16 2:51 2.6.1: kernel BUG at mm/swapfile.c:806 marcel cotta
2004-01-16 4:34 ` Andrew Morton
[not found] ` <40076B62.9000108@kriminell.com>
[not found] ` <20040115204302.2909af64.akpm@osdl.org>
2004-01-16 5:21 ` marcel cotta
2004-01-16 5:22 ` marcel cotta
2004-01-16 6:43 ` marcel cotta
2004-01-16 17:05 ` Hugh Dickins
2004-01-16 18:29 ` Mike Fedyk [this message]
2004-01-16 18:43 ` Andrew Morton
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