Andy Whitcroft wrote: > As reported by Adam Litke and Jon Tollefson one of the libhugetlbfs > regression tests triggers a negative overall reservation count. When > this occurs where there is no dynamic pool enabled tests will fail. > > Following this email are two patches to address this issue: > > hugetlb reservations: move region tracking earlier -- simply moves the > region tracking code earlier so we do not have to supply prototypes, and > > hugetlb reservations: fix hugetlb MAP_PRIVATE reservations across vma > splits -- which moves us to tracking the consumed reservation so that > we can correctly calculate the remaining reservations at vma close time. > > This stack is against the top of v2.6.25-rc6-mm3, should this solution > prove acceptable it would need slipping underneath Nick's multiple hugepage > size patches and those updated. I have a modified stack prepared for that. > > This version incorporates Mel's feedback (both cosmetic, and an allocation > under spinlock issue) and has an improved layout. > > Changes in V2: > - commentry updates > - pull allocations out from under hugetlb_lock > - refactor to match shared code layout > - reinstate BUG_ON's > > Jon could you have a test on this and see if it works out for you. > > -apw > Version two works for me too. I am not seeing the reserve value become negative when running the libhuge tests. Jon -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
