Date: Fri, 26 Feb 2010 14:17:54 +0100 From: Gerrit =?ISO-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> To: Daniel Braniss <danny@cs.huji.ac.il> Cc: stable@freebsd.org, Willem Jan Withagen <wjw@digiware.nl>, Jack Vogel <jfvogel@gmail.com>, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: em0 freezes on ZFS server Message-ID: <20100226141754.86ae5a3f.gerrit@pmp.uni-hannover.de> In-Reply-To: <E1Nkzry-0000AC-0S@kabab.cs.huji.ac.il> References: <4B86F384.3010308@digiware.nl> <2a41acea1002251459v40e8c6ddxd0437decbada4594@mail.gmail.com> <4B8795B1.4020006@digiware.nl> <20100226120339.GB17798@icarus.home.lan> <20100226133138.d47dd080.gerrit@pmp.uni-hannover.de> <20100226134429.041ea6f2.gerrit@pmp.uni-hannover.de> <E1Nkzry-0000AC-0S@kabab.cs.huji.ac.il>
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On Fri, 26 Feb 2010 15:04:37 +0200 Daniel Braniss <danny@cs.huji.ac.il> wrote about Re: em0 freezes on ZFS server : DB> > At least in my case I found out what is eating the buffers: nfsd DB> > does! The buffers stop increasing as soon as I stop nfsd. However, DB> > they start increasing as soon as I start nfsd again. DB> > Are there any ideas how to fix this? Downgrading back to 7-stable is DB> > not really an easy task as far as I know, and I need the server to DB> > run without having to reboot it once for twice a day... DB> I want to add some spices to this stew: :-) You're welcome. :-) DB> Some few day later it hung, and it's now hanging every few days. DB> Most of the hangs are because there is no network, but the NIC is bce DB> not em! I doubled kern.ipc.nmbclusters and lets see what happens ... Do you have nfsd running and serving clients? If so, we should maybe change the topic to something like "possible nfs mbuf leakage"... DB> 23066/6634/29700 mbufs in use (current/cache/total) My server is at 22k now, and the buffer number is still increasing every few seconds... Can you monitor your mbuf usage and report if it grows? cu Gerrit
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