From: Rusty Russell <rusty@linuxcare.com.au>
To: Philipp Rumpf <prumpf@mandrakesoft.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: Linux 2.4.1-ac15
Date: Wed, 21 Feb 2001 14:02:04 +1100 [thread overview]
Message-ID: <E14VPXZ-0007HS-00@halfway> (raw)
In-Reply-To: Your message of "Mon, 19 Feb 2001 05:54:11 CDT." <Pine.LNX.3.96.1010219054120.16489F-100000@mandrakesoft.mandrakesoft.com>
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
next prev parent reply other threads:[~2001-02-21 3:02 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-15 23:15 Linux 2.4.1-ac15 Alan Cox
2001-02-19 9:47 ` Philipp Rumpf
2001-02-19 11:35 ` Alan Cox
2001-02-19 11:54 ` Philipp Rumpf
2001-02-19 16:03 ` Alan Cox
2001-02-19 16:21 ` Philipp Rumpf
2001-02-19 16:27 ` Alan Cox
2001-02-19 16:34 ` Philipp Rumpf
2001-02-19 16:41 ` Alan Cox
2001-02-19 16:48 ` Philipp Rumpf
2001-02-19 17:03 ` Alan Cox
2001-02-21 3:02 ` Rusty Russell [this message]
2001-02-21 12:01 ` Alan Cox
2001-02-22 2:05 ` Rusty Russell
2001-02-22 10:22 ` Alan Cox
2001-02-23 0:01 ` Philipp Rumpf
2001-02-22 2:27 ` Linus Torvalds
2001-02-22 10:29 ` Alan Cox
2001-02-23 20:40 ` Andrea Arcangeli
2001-02-23 21:09 ` Linus Torvalds
2001-02-24 4:04 ` Andrea Arcangeli
2001-02-24 4:54 ` Andrea Arcangeli
2001-02-19 11:54 ` Keith Owens
2001-02-19 12:15 ` Philipp Rumpf
2001-02-19 13:15 ` Keith Owens
2001-02-19 13:25 ` Christoph Hellwig
2001-02-19 21:32 ` Keith Owens
2001-02-19 13:36 ` Philipp Rumpf
2001-02-19 15:23 ` Manfred Spraul
2001-02-19 16:04 ` Alan Cox
2001-02-19 21:52 ` Keith Owens
2001-02-20 12:29 ` Philipp Rumpf
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