Re: [PATCH] printk simultaneous oops disentangling

From: Benjamin LaHaise (bcrl@redhat.com)
Date: Thu Aug 22 2002 - 10:51:14 EST

On Thu, Aug 22, 2002 at 01:09:18PM +0100, David Howells wrote:
> Hi Linus,
>
> Here's a patch to stop multiple simultaneous oopses on an SMP system from
> interleaving with and overwriting bits of each other. It only permits lock
> breaking if the printk lock is held by the same CPU.

This is still wrong. It should attempt to acquire the locks with a timeout
before trampling on them, as there may be a printk or other console output
in progress on the other cpu.

                -ben 

-- 
"You will be reincarnated as a toad; and you will be much happier."
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