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Date: Tue, 28 Feb 2006 12:03:03 +0900
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From: JINMEI Tatuya / =?ISO-2022-JP?B?GyRCP0BMQEMjOkgbKEI=?=
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To: Craig Boston <craig@olyun.gank.org>
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Cc: freebsd-net@freebsd.org
Subject: Re: Race condition in ip6_getpmtu (actually gif)?
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>>>>> On Mon, 27 Feb 2006 14:03:01 -0600, 
>>>>> Craig Boston <craig@olyun.gank.org> said:

>> > Attached is a quick hack to protect the cached route with a mutex.  A
>> > better fix with less overhead would be to allocate the route in a local
>> > variable on the stack, and only copy it to the softc if route caching is
>> > enabled.  I'll run for a couple weeks with the patch and file a PR if
>> > that fixes it.
>> 
>> I guess this problem was fixed with the following changes:
>> 
>> http://www.jp.freebsd.org/cgi/cvsweb.cgi/src/sys/net/if_gif.c.diff?r1=1.57&r2=1.58
>> http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet6/in6_gif.c.diff?r1=1.23&r2=1.24

> Yes, it was.  I saw the changes in those files when I attempted to
> re-merge my patch after a cvsup.  I've currently been running with no
> panics for 12 days with rev 1.52.2.4 of if_gif.c and rev 1.22.2.2 of
> in6_gif.c.

Okay, thanks for the confirmation.

					JINMEI, Tatuya
					Communication Platform Lab.
					Corporate R&D Center, Toshiba Corp.
					jinmei@isl.rdc.toshiba.co.jp