Date: Thu, 31 Mar 2011 09:05:19 +0200 (CEST) From: Yamagi Burmeister <lists@yamagi.org> To: YongHyeon PYUN <pyunyh@gmail.com> Cc: freebsd-net@freebsd.org, Yamagi Burmeister <lists@yamagi.org>, yongari@freebsd.org Subject: Re: Kernel memory corruption(?) with age(4) Message-ID: <alpine.BSF.2.00.1103310859310.3082@saya.home.yamagi.org> In-Reply-To: <20110330202858.GC8601@michelle.cdnetworks.com> References: <alpine.BSF.2.00.1103301620110.17846@saya.home.yamagi.org> <20110330173145.GB8601@michelle.cdnetworks.com> <alpine.BSF.2.00.1103302137330.1646@maka.home.yamagi.org> <20110330202858.GC8601@michelle.cdnetworks.com>
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On Wed, 30 Mar 2011, YongHyeon PYUN wrote: >> Okay, I did a test run with RX checksum, TX checksum and both disabled. >> In all three cases the crash occurs within about 20 minutes. I'm either >> not sure that age(4) is the problem but it has definedly something to do >> with the problem, since with another nic driver the same scenario is >> rock solid... >> > > OK. > >> The workload: It's a NFS3 server (FreeBSDs non-experimental >> implementation), serving and receiving file with about 250 to 500 >> megabytes at about 20mb/s. The clients are FreeBSD 7 and 8 systems and >> are mounting the shares via TCP. The connection is 1000mbit/s via a >> "dumb" gigabit switch. >> > > That's too broad to narrow down the issue. :-( > I'm not sure but your box seem to have more than 4GB memory. Could > you limit the available memory to 3GB via loader.conf and test it > again? All boxes are quadcore machines with 8GB RAM, running FreeBSD/amd64. After limiting the memory via hw.physmem to 3GB the problems are gone. The box is running crashfree for more than 6 hours and has served over 300GB of data via age(4). -- Homepage: www.yamagi.org Jabber: yamagi@yamagi.org GnuPG/GPG: 0xEFBCCBCB
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