Date: Wed, 12 Aug 2009 14:44:29 -0700 From: Xin LI <delphij@delphij.net> To: Stanislav Sedov <stas@FreeBSD.ORG> Cc: Tom Judge <tom@tomjudge.com>, svn-src-head@FreeBSD.ORG, svn-src-all@FreeBSD.ORG, src-committers@FreeBSD.ORG, David Christensen <davidch@FreeBSD.ORG> Subject: Re: svn commit: r189117 - head/sys/dev/bce Message-ID: <4A8337BD.3010700@delphij.net> In-Reply-To: <20090812234935.84e5ac74.stas@FreeBSD.org> References: <200902271925.n1RJP699080658@svn.freebsd.org> <20090721145559.d2cf3f0b.stas@FreeBSD.org> <4A7AFFC4.5050607@tomjudge.com> <20090812234935.84e5ac74.stas@FreeBSD.org>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Stanislav, Stanislav Sedov wrote: > On Thu, 06 Aug 2009 11:07:32 -0500 > Tom Judge <tom@tomjudge.com> mentioned: > >> I can confirm that we are also seeing this problem on a number of Dell >> PE2950 systems running the bce driver from 7.2, the bug is more >> visible/producible on systems that are using Jumbo Frames (in our case 8Kb). >> >> The symptoms of this are an increase in the requests for jumbo clusters >> denied counter at 9k, and then random network stalls which sometimes >> recover on there own and others require a reboot. >> >> We have backed this change and so far it seems to have fixed the issue. >> > > David, > > are you OK with reverting this patch? I submitted the patch to re@ for > review, and I can commit it if you don't mind doing so. :-) I think there was some motivation supporting the SPLIT_HEADER disable in the past (IIRC it was for reliability or data corruption), but I think I have lost the mail archive (at least I couldn't find it at this moment :-/ I'm not very sure if that was fixed by my busdma_sync fix, though, can anyone confirm that? Cheers, - -- Xin LI <delphij@delphij.net> http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iEYEARECAAYFAkqDN70ACgkQi+vbBBjt66CfiwCeIpYBDxMXZPhW6gLhdXdBYgj4 uIIAoIRnUkEs0n1xTRJb0JzryxR6poD+ =Iuis -----END PGP SIGNATURE-----
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