Re: [PATCH] 2.4.21-pre7 ide request races

From: Mike Anderson (andmike@us.ibm.com)
Date: Mon Apr 14 2003 - 11:15:08 EST


Jens Axboe [axboe@suse.de] wrote:
> 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.

In 2.5 will you include the 2.4 end_that_request_last fix proposed in
this thread along with removal of requests on the stack?

-andmike

--
Michael Anderson
andmike@us.ibm.com

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