Messages in this thread | | | Date | Wed, 14 May 2003 14:07:45 -0500 | From | Dave McCracken <> | Subject | Re: Race between vmtruncate and mapped areas? |
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--On Wednesday, May 14, 2003 15:04:55 -0400 Rik van Riel <riel@redhat.com> wrote:
>> Not to mention they could end up being outside of any VMA, >> meaning there's no sane way to deal with them. > > I hate to follow up to my own email, but the fact that > they're not in any VMA could mean we leak these pages > at exit() time.
Well, they are still inside the vma. Truncate doesn't shrink the vma. It just generates SIGBUS when the app tries to fault the pages in.
Dave
====================================================================== Dave McCracken IBM Linux Base Kernel Team 1-512-838-3059 dmccr@us.ibm.com T/L 678-3059
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