mmap() problem
Poul-Henning Kamp
phk at phk.freebsd.dk
Wed Jul 28 13:08:48 UTC 2010
In message <201007281056.43100.hselasky at c2i.net>, Hans Petter Selasky writes:
>When is it safe to free memory which has been mmapped to a user-space
>application? After close() or during close() or before close() or when the
>process/thread terminates?
Assuming you mean memory activated via devsw->mmap: never.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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