Re: [PATCH] 2.4.21-pre7 ide request races
Jens Axboe (axboe@suse.de)
Mon, 14 Apr 2003 12:27:23 +0200
On Mon, Apr 14 2003, Andrew Morton wrote:
> Jens Axboe <axboe@suse.de> wrote:
> >
> > How would that solve the problem? The request could be gone even before
> > end_that_request_last() is run, that is the issue.
>
> In that case I didn't understand your description of the bug even the tiniest
> little bit.
>
> That request is sitting in the kernel stack of some process which is sleeping
> in wait_for_completion(). Hence it is safe memory until someone runs
> complete() against the completion struct.
Sorry you are right, that should fix the problem as well! Your fix is
probably the better one for 2.4, less intrusive. I'll kill the stack
requests in 2.5 then.
--
Jens Axboe
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