linux-kernel - Re: [BUG] 2.6.19-rc3 autofs crash on my IA64 box

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Message-Id: <1162818536.10271.20.camel@localhost>
Date:	Mon, 06 Nov 2006 21:08:56 +0800
From:	Ian Kent <raven@...maw.net>
To:	Yasunori Goto <y-goto@...fujitsu.com>
Cc:	"bibo,mao" <bibo.mao@...el.com>,
	David Howells <dhowells@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [BUG] 2.6.19-rc3 autofs crash on my IA64 box

On Mon, 2006-11-06 at 21:47 +0900, Yasunori Goto wrote:
> Hi.
> 
> > I've checked this and this is not the only problem.
> > Also autofs4_ is called with s->s_root NULL in this case.
> > 
> > The attached patch ensures that the autofs filesystem is initialized to be 
> > catatonic until super block setup is complete which avoids the problem 
> > above. It also checks s->s_root before use.
> > 
> > Could someone seeing this problem try this patch out please.
> 
> Sorry for late response. I was off.
> I tested your patch on my box. It worked well.

Thanks.

Unfortunately, I've got a couple of other problems.

In my testing I managed to panic the kernel further on, somewhere in
selinux. The scenario is slightly different though, running autofs
version 5 against a version 4 module. I really can't see why, all the
references look OK. I'm not sure what can be done it either as we're
talking about an older kernel anyway.

My other problem is I can't get my -mm kernel to build atm so I can't
really test further. I'm sure that will change soon.

Ian

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