Date: Wed, 22 Dec 2004 20:29:41 -0600 From: "Conrad J. Sabatier" <conrads@cox.net> To: freebsd-current@freebsd.org Subject: Re: NFS flakiness since @ last Friday Message-ID: <20041222202941.79ea15a6@dolphin.local.net> In-Reply-To: <20041221055157.5bf808ff@dolphin.local.net> References: <20041221055157.5bf808ff@dolphin.local.net>
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On Tue, 21 Dec 2004 05:51:57 -0600, "Conrad J. Sabatier" <conrads@cox.net> wrote: > I'm seeing some real instability in NFS since approximately last > Friday. Intermittently, I'm seeing messages such as the following: > > On the client machine: > > Dec 20 23:18:22 dolphin kernel: impossible packet length (1820291) > from nfs server gateway:/mm > Dec 21 00:51:47 dolphin kernel: impossible packet length (1746474142) > from nfs server gateway:/mm > > and > > Dec 21 01:14:41 dolphin kernel: nfs send error 35 for server > gateway:/mm Dec 21 01:16:33 dolphin kernel: nfs send error 35 for > server gateway:/mm Dec 21 01:16:38 dolphin kernel: nfs send error 35 > for server gateway:/mm Dec 21 01:16:40 dolphin kernel: nfs server > gateway:/mm: not responding Dec 21 01:16:43 dolphin kernel: nfs server > gateway:/mm: is alive again > > On the server machine: > > Dec 20 21:52:48 gateway kernel: nfsd send error 32 > Dec 20 21:57:50 gateway kernel: nfsd send error 32 > Dec 20 22:00:45 gateway kernel: nfsd send error 32 > Dec 20 22:23:29 gateway kernel: nfsd send error 32 > Dec 20 23:18:23 gateway kernel: nfsd send error 32 > > Then, ultimately, all NFS communication just breaks down > altogether until a reboot. > > I'm also seeing "sillyrenames" left behind occasionally in nfs-mounted > directories. > > There were a couple of nfs-related commits last Thursday, which I > believe are most likely the culprit, although I don't know which ones > exactly. I do believe this problem is related to the new direct i/o mode for nfs. Disabling it seems to have made the problem disappear. -- Conrad J. Sabatier <conrads@cox.net> -- "In Unix veritas"
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