Messages in this thread | | | Date | Fri, 18 Apr 2014 19:51:04 +0200 | From | Manfred Spraul <> | Subject | Re: [PATCH v3] ipc,shm: disable shmmax and shmall by default |
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On 04/18/2014 05:36 PM, Michael Kerrisk (man-pages) wrote: > On Fri, Apr 18, 2014 at 11:26 AM, Manfred Spraul > <manfred@colorfullife.com> wrote: >> Obviously my patch has the opposite problem: 64-bit wrap-arounds. > I know you alluded to a case in another thread, but I couldn't quite > work out from the mail you referred to whether this was really the > problem. (And I assume those folks were forced to fix their set-up > scripts anyway.) So, it's not clear to me whether this is a real > problem. (And your patch does not worsen things from the current > situation, right?) a) When I wrote the comment it was just an idea. But now I think wrap-around could be an issue, e.g. find_vma_intersection(,addr,addr+ULONG_MAX) always returns false, even if there are vmas inbetween.
b) If we make ULONG_MAX the default, then it should work.
-- Manfred
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