Date: Tue, 03 Nov 2009 15:51:19 +0000 From: Tom Judge <tom@tomjudge.com> To: Weldon S Godfrey 3 <weldon@excelsusphoto.com> Cc: Pieter de Goeje <pieter@degoeje.nl>, freebsd-current@freebsd.org, Ivan Voras <ivoras@freebsd.org> Subject: Re: FreeBSD 8.0 - network stack crashes? Message-ID: <4AF05177.7030705@tomjudge.com> In-Reply-To: <alpine.BSF.2.00.0911030832320.36102@emmett.excelsus.com> References: <alpine.BSF.2.00.0911020747560.80499@emmett.excelsus.com> <hcnt4c$12i$1@ger.gmane.org> <alpine.BSF.2.00.0911021952220.1264@emmett.excelsus.com> <200911030937.11619.pieter@degoeje.nl> <alpine.BSF.2.00.0911030832320.36102@emmett.excelsus.com>
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Weldon S Godfrey 3 wrote: > > > If memory serves me right, sometime around 9:37am, Pieter de Goeje told me: > >> Are you perhaps using em(4)? There was an mbuf leak in the driver, >> which was fixed recently. >> You can check mbuf usage with netstat -m. >> > > we are using onboard NICs on the Dell using the bce driver. We did try > several times to see if using an intel PCIexpress card using the em > driver, and we had the same symptoms. > > Could the bce driver have the same leak? The bce driver does not have a memory leak, it does however have a bug which causes memory fragmentation leading to denied mbuf allocation. There is a work around for this in current, you can get the patch like this: http://svn.freebsd.org/viewvc/base/head/ You need to put options BCE_JUMBO_HDRSPLIT In your kernel to enable the work arround. Tom
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