Date: Mon, 16 Aug 2010 17:25:12 GMT From: yongari@FreeBSD.org To: eugenijusu@inbox.lv, yongari@FreeBSD.org, freebsd-net@FreeBSD.org, yongari@FreeBSD.org Subject: Re: kern/149497: [fxp] 8.1-release, problem with fxp driver [regression] Message-ID: <201008161725.o7GHPCxs035128@freefall.freebsd.org>
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Synopsis: [fxp] 8.1-release, problem with fxp driver [regression] State-Changed-From-To: open->closed State-Changed-By: yongari State-Changed-When: Mon Aug 16 17:24:31 UTC 2010 State-Changed-Why: Not a fxp(4) bug. This issue was caused by a bug in ipfilter's checksum offloading handling. Consumer grade fxp(4) controllers support simple RX checksum offloading capability and fxp(4) started to use that feature. However ipfilter's checksum offloading logic has a bug such that it incorrectly computes checksum of received frame and dropped the frame. See the kern/106438 for more details and possible fix. You can disable RX checksum offloading of fxp(4) as temporary workaround. #ifconfig fxp0 -rxcsum Responsible-Changed-From-To: freebsd-net->yongari Responsible-Changed-By: yongari Responsible-Changed-When: Mon Aug 16 17:24:31 UTC 2010 Responsible-Changed-Why: Track. http://www.freebsd.org/cgi/query-pr.cgi?pr=149497
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