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authorRusty Russell <rusty@rustcorp.com.au>2009-03-30 21:55:23 -0600
committerRusty Russell <rusty@rustcorp.com.au>2009-03-30 21:55:24 +1030
commitb7ff99ea53cd16de8f6166c0e98f19a7c6ca67ee (patch)
treefed5a3cf8fc8061967e60b5bbf32e81f3c742822 /drivers
parent6afbdd059c27330eccbd85943354f94c2b83a7fe (diff)
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lguest: wire up pte_update/pte_update_defer
Impact: intermittent guest segv/crash fix I've been seeing random guest bad address crashes and segmentation faults: bisect led to 4f98a2fee8 (vmscan: split LRU lists into anon & file sets), but that's a red herring. It turns out that lguest never hooked up the pte_update/pte_update_defer calls, so our ptes were not always in sync. After the vmscan commit, the bug became reproducible; now a fsck in a 64MB guest causes reproducible pagetable corruption. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: jeremy@xensource.com Cc: virtualization@lists.osdl.org Cc: stable@kernel.org
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