Re: HEADS up on VM fix now in stable
What corruption would you see?
Matthew Dillon wrote:
> David Rhodus and I finally tracked down the dogged filesystem corruption
> and 'page not found in hash' panics that he has been getting for over
> a year. The fix has been committed and the DragonFly_Stable tag slipped
> for it. The bug was in contigmalloc() and particularly hit by people
> using the 'twe' driver, not through any fault of the driver which is
> why we were never able to find the problem before.
>
> Anyone with weird random occassional filesystem corruption or 'page not
> found in hash' panics should cvsup and get the latest stable, and the
> problem should go away. The bug was inherited from FreeBSD-4 and even
> FreeBSD-5 still had a portion of the buggy code in place (though it may
> have been masked by other work done in FreeBSD-5).
>
> Many thanks to David Rhodus for providing the many kernel cores (dozens
> over the last year) related to this bug.
>
> This bug is believed to have been the cause of *all* known occassdional
> filesystem and/or VM corruption issues in DragonFly so it is with great
> relief that we've finally been able to track it down and fix it.
>
> -Matt
> Matthew Dillon
> <dillon@backplane.com>
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