From: Andi Kleen <ak@suse.de>
To: Akinobu Mita <mita@miraclelinux.com>
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org, okuji@enbug.org
Subject: Re: [patch 3/6] fault-injection capability for alloc_pages()
Date: Thu, 31 Aug 2006 12:45:40 +0200 [thread overview]
Message-ID: <200608311245.40578.ak@suse.de> (raw)
In-Reply-To: <20060831103528.GA14783@miraclelinux.com>
On Thursday 31 August 2006 12:35, Akinobu Mita wrote:
> On Thu, Aug 31, 2006 at 12:25:02PM +0200, Andi Kleen wrote:
>
> > I still think this will need some better filters to be useful. At least
> > a optional uid filter perhaps (make sure to handle the interrupt case
> > correctly, interrupts don't belong to the uid) , and perhaps an option to only
> > fail GFP_ATOMIC.
>
> I wrote process filter.
Oops sorry. I overlooked that.
> Please patch 6/6. But I forgot to ignore
> in_interrupt() case.
Ok fine then.
>
> > With arbitary failing the system will just be unusable, right? Or would
> > you run some system you use this way? @)
> >
> > Another possibility would be to look up __builtin_return_address(0) in
> > the module table and allow failing only for a specific module.
>
> That will be useful. Thanks.
It might unfortunately need architecture specific code. But I guess a i386
only implementation as start would be useful enough.
-Andi
next prev parent reply other threads:[~2006-08-31 10:45 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-31 10:07 [patch 0/6] RFC: fault-injection capabilities (v2) Akinobu Mita
2006-08-31 10:07 ` [patch 1/6] fault-injection capabilities infrastructure Akinobu Mita
2006-08-31 10:22 ` Andi Kleen
2006-08-31 10:07 ` [patch 2/6] fault-injection capability for kmalloc Akinobu Mita
2006-08-31 10:07 ` [patch 3/6] fault-injection capability for alloc_pages() Akinobu Mita
2006-08-31 10:25 ` Andi Kleen
2006-08-31 10:35 ` Akinobu Mita
2006-08-31 10:45 ` Andi Kleen [this message]
2006-08-31 10:08 ` [patch 4/6] fault-injection capability for disk IO Akinobu Mita
2006-08-31 10:08 ` [patch 5/6] debugfs entries for configuration Akinobu Mita
2006-08-31 10:08 ` [patch 6/6] process filtering for fault-injection capabilities Akinobu Mita
2006-08-31 17:29 ` [patch 0/6] RFC: fault-injection capabilities (v2) Josh Triplett
2006-08-31 18:31 ` Kyle Moffett
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