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SubjectRe: [PATCH 2.6.19] ehca: bug fix: use wqe offset instead wqe address to determine pending work requests
Date
(2nd try, since I forgot to post this on the mailing list)
On Tuesday 21 November 2006 17:47, Roland Dreier wrote:
> Umm, it's really late to merge things for 2.6.19. How severe is this
> bug? Why has it not been found until now if it causing crashes?
We found this bug actually through a code review by random. Since
(un)fortunately the queue pages were layouted in order, we've not
seen it earlier. It's certainly a bug and can cause kernel panic
if above observation is not met, probably in stress situation
of system. That means the "former" code accesses next page that
it has not allocated.
Thanks
Nam
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