Date: Wed, 10 Jun 2009 14:17:50 -0700 From: Kip Macy <kip.macy@gmail.com> To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> Cc: freebsd-net@freebsd.org Subject: Re: fxp hack in sys/net/if.c? Message-ID: <3c1674c90906101417j39a01f85k8e98c0ee19a011a7@mail.gmail.com> In-Reply-To: <20090610210021.N22887@maildrop.int.zabbadoz.net> References: <20090610210021.N22887@maildrop.int.zabbadoz.net>
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>From "cvs blame": Add workaround for fxp issue at interface initialization with IPv6. Some LAN card chip for fxp is known to cause problem at interface initialization with IPv6 enabled. It happens at some delicate timing. And also, just adding some DELAY before IPv6 address autoconfiguration is known to avoid the problem. Complete fix is changing the driver not to use interrupt at multicast filter initialization, but trying such change in this stage will be dangerous. So I add some DELAY() only inside #ifdef INET6 part, as temporal workaround only for 4.0. Approbed by: jkh Noticed by: Mattias Pantzare <pantzer@ludd.luth.se> Obtained from: openbsd-tech mailing list On Wed, Jun 10, 2009 at 2:03 PM, Bjoern A. Zeeb<bzeeb-lists@lists.zabbadoz.net> wrote: > Hi, > > could anyone having a clue why that is there look at it and either > remove it or remove it and properly handle it elsewhere? > > I have continuesly noticed it for a while so I think the "temporary" > as given in the comment rather means "forgotten"? > > sys/net/if.c: =A0 =A0 =A0 =A0 =A0 DELAY(100);/* XXX: temporary workaround= for fxp > issue*/ > > /bz > > -- > Bjoern A. Zeeb =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0The greatest ri= sk is not taking one. > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" > --=20 When bad men combine, the good must associate; else they will fall one by one, an unpitied sacrifice in a contemptible struggle. Edmund Burke
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