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From: Andrew Morton <akpm@linux-foundation.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: paul@mad-scientist.net, linux-kernel@vger.kernel.org
Subject: Re: [2.6.27.24] Kernel coredump to a pipe is failing
Date: Tue, 26 May 2009 17:29:35 -0700	[thread overview]
Message-ID: <20090526172935.fad52c49.akpm@linux-foundation.org> (raw)
In-Reply-To: <20090527001104.GN846@one.firstfloor.org>

On Wed, 27 May 2009 02:11:04 +0200 Andi Kleen <andi@firstfloor.org> wrote:

> > I dunno.  Is this true of all linux filesystems in all cases?  Maybe.
> 
> Assuming one of them is not would you rather want to fix that file system
> or 10 zillion user programs (including the kernel core dumper) that 
> get it wrong? @)
> 

I think that removing one bug is better than adding one.

Many filesystems will return a short write if they hit a memory
allocation failure, for example.  pipe_write() sure will.  Retrying
is appropriate in such a case.


  reply	other threads:[~2009-05-27  0:30 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-26 16:33 [2.6.27.24] Kernel coredump to a pipe is failing Paul Smith
2009-05-26 18:01 ` Paul Smith
2009-05-26 20:31 ` Andi Kleen
2009-05-26 21:09   ` Paul Smith
2009-05-26 23:00   ` Andrew Morton
2009-05-26 23:14     ` Andi Kleen
2009-05-26 23:28       ` Andrew Morton
2009-05-26 23:41         ` Andi Kleen
2009-05-26 23:45           ` Andrew Morton
2009-05-27  0:11             ` Andi Kleen
2009-05-27  0:29               ` Andrew Morton [this message]
2009-05-27  6:02                 ` Paul Smith
2009-05-27  6:17                 ` Paul Smith
2009-05-27  7:31                 ` Andi Kleen
2009-05-27  7:45                   ` Andrew Morton
2009-05-27  8:52                     ` Andi Kleen
2009-05-27  8:56                       ` Andrew Morton
2009-05-27 20:25           ` Jesper Juhl
2009-05-29 10:34           ` Pavel Machek
2009-05-27 18:31   ` Oleg Nesterov
2009-05-27 18:50     ` Andi Kleen
2009-05-27 19:05       ` Oleg Nesterov
2009-05-27 19:49         ` Paul Smith
2009-05-27 20:34           ` Oleg Nesterov
2009-05-27 20:04     ` Oleg Nesterov
2009-05-27 20:22       ` Paul Smith
  -- strict thread matches above, loose matches on Subject: below --
2009-05-22 12:34 Paul Smith

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