Re: Linux 2.4.1-ac15

Rusty Russell (rusty@linuxcare.com.au)
Wed, 21 Feb 2001 14:02:04 +1100

In message <Pine.LNX.3.96.1010219054120.16489F-100000@mandrakesoft.mandrakesoft
.com> you write:
> > We unlink the module
> > We free the memory
> >
> > At the same time another cpu may be walking the exception table that we fre
e.
>
> True.
>
> Rusty had a patch that locked the module list properly IIRC.

This is a while back, but I thought the solution Philipp and I came up
with was to simply used a rw semaphore for this, which was taken (read
only) on page fault if we have to scan the exception table.

Rusty.

--
Premature optmztion is rt of all evl. --DK
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