Re: [PATCH] for 2.6.16, disable unshare_vm()

From: Linus Torvalds
Date: Sat Mar 18 2006 - 13:09:36 EST




On Sat, 18 Mar 2006, Oleg Nesterov wrote:
>
> sys_unshare() does mmput(new_mm). This is not enough
> if we have mm->core_waiters. This patch is a temporary
> fix for soon to be released 2.6.16.

Yes. Quick raising of hands: is there anybody out there that expects to
use unshare(CLONE_VM) right now? One of the reasons it was integrated was
that I thought glibc wanted it for distros. Is disabling the CLONE_VM
unsharing going to impact that?

Linus
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