Messages in this thread | | | Date | Sun, 16 Dec 2012 17:48:01 +0000 | From | Al Viro <> | Subject | Re: [PATCH] mm: Downgrade mmap_sem before locking or populating on mmap |
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On Sun, Dec 16, 2012 at 05:04:03PM +0000, Al Viro wrote:
> Moreover, I'm not quite convinced that huge_memory.c and ksm.c can't run > into all kinds of interesting races with ongoing coredump. Looking into > it...
Specifically, is collapse_huge_page() safe in parallel with ->core_dump()? It *can* run while we are in the middle of e.g. elf_core_dump().
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