From: Andrew Morton <akpm@osdl.org>
To: Akinobu Mita <akinobu.mita@gmail.com>
Cc: linux-kernel@vger.kernel.org, ak@suse.de, Don Mullis <dwm@meer.net>
Subject: Re: [patch 0/7] fault-injection capabilities (v5)
Date: Thu, 12 Oct 2006 14:26:25 -0700 [thread overview]
Message-ID: <20061012142625.520d3d87.akpm@osdl.org> (raw)
In-Reply-To: <452df20e.025ef312.44f0.7578@mx.google.com>
On Thu, 12 Oct 2006 16:43:05 +0900
Akinobu Mita <akinobu.mita@gmail.com> wrote:
> Fault-injection capabilities patch set version 5.
It all looks quite nice, thanks. Couple of things...
You've presumably run a kernel with these various things enabled. What
happens? Does the kernel run really slowly? Does userspace collapse in a
heap? Does it oops and die?
Also, one place where this infrastructure could be of benefit is in device
drivers: simulate a bad sector on the disk, a pulled cable, a timeout
reading from a status register, etc. If that works well and is useful then
I can see us encouraging driver developers to wire up fault-injection in
the major drivers.
Hence it would be useful at some stage to go in and to actually do all this
for a particular driver. As an example implementation for others to
emulate and as a test for the fault-injection infrastructure itself - we
may discover that new capabilities are needed as this work is done.
I wouldn't say this is an urgent thing to be doing, but it is a logical
next step..
next prev parent reply other threads:[~2006-10-12 21:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-12 7:43 Akinobu Mita
2006-10-12 21:26 ` Andrew Morton [this message]
2006-10-13 17:46 ` Akinobu Mita
2006-10-13 19:00 ` Andrew Morton
2006-10-14 10:52 Jan Beulich
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