From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Milton Miller <miltonm@bga.com>
Cc: paulus@samba.org, linuxppc64-dev@ozlabs.org,
linux-kernel@vger.kernel.org, edwardsg@sgi.com, anton@samba.org,
torvalds@osdl.org
Subject: Re: [PATCH] ppc64: iSeries early printk breakage
Date: Thu, 8 Sep 2005 11:01:15 +1000 [thread overview]
Message-ID: <20050908110115.1f1bce0c.sfr@canb.auug.org.au> (raw)
In-Reply-To: <ccb92a396938e8c1d00b46d122d6583c@bga.com>
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On Wed, 7 Sep 2005 06:04:36 -0500 Milton Miller <miltonm@bga.com> wrote:
>
> Does anything actually break without this patch?
Yes, an iSeries box will not boot.
> My reading of unregister_console says we will acquire
> the console semaphore, walk the list, fail to find the
> console, relase the semaphore, and return.
Consider the case that console_drivers == NULL (because we have never called register_console).
unregister_console dereferences console_drivers ...
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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prev parent reply other threads:[~2005-09-08 1:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-07 9:52 Stephen Rothwell
2005-09-07 11:04 ` Milton Miller
2005-09-08 1:01 ` Stephen Rothwell [this message]
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