Date: Fri, 26 Feb 2010 13:23:57 +0100 From: Willem Jan Withagen <wjw@digiware.nl> To: =?ISO-8859-1?Q?Gerrit_K=FChn?= <gerrit@pmp.uni-hannover.de> Cc: stable@freebsd.org, Jack Vogel <jfvogel@gmail.com> Subject: Re: em0 freezes on ZFS server Message-ID: <4B87BD5D.4040006@digiware.nl> In-Reply-To: <20100226131618.ae652327.gerrit@pmp.uni-hannover.de> References: <4B86F384.3010308@digiware.nl> <2a41acea1002251459v40e8c6ddxd0437decbada4594@mail.gmail.com> <20100226131618.ae652327.gerrit@pmp.uni-hannover.de>
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On 26-2-2010 13:16, Gerrit Kühn wrote: > On Thu, 25 Feb 2010 14:59:28 -0800 Jack Vogel<jfvogel@gmail.com> wrote > about Re: em0 freezes on ZFS server: > > JV> The failure to "setup receive structures" means it did not have > JV> sufficient mbufs > JV> to setup the RX ring and buffer structs. > > I'm monitoring mbufs since I rebooted my server. Right now (after 2.5 hours > or so of operation) the number of total clusters has already increased to > 15k. Is this a normal behaviour for a relatively idle server or will it > inevitably go through the roof in some more hours? > > > Every 1s: netstat -m Fri Feb 26 > 13:14:54 2010 > > 15001/2279/17280 mbufs in use (current/cache/total) > 13970/1212/15182/64000 mbuf clusters in use (current/cache/total/max) > 13970/750 mbuf+clusters out of packet secondary zone in use (current/cache) > 0/119/119/12800 4k (page size) jumbo clusters in use > (current/cache/total/max) 0/0/0/6400 9k jumbo clusters in use > (current/cache/total/max) 0/0/0/3200 16k jumbo clusters in use > (current/cache/total/max) 31690K/3469K/35160K bytes allocated to network > (current/cache/total) 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf > +clusters) 0/0/0 requests for jumbo clusters denied (4k/9k/16k) > 0/0/0 sfbufs in use (current/peak/max) > 0 requests for sfbufs denied > 0 requests for sfbufs delayed > 3 requests for I/O initiated by sendfile > 0 calls to protocol drain routines Well it could be coincidence, but mine are around 15k as well: 15921/3669/19590 mbufs in use (current/cache/total) 15308/2678/17986/51200 mbuf clusters in use (current/cache/total/max) 14754/862 mbuf+clusters out of packet secondary zone in use (current/cache) System is up since last night, and has taken a few Gb in rsync-backup and several compile jobs. Hasn't given me trouble (yet). --WjW
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