Date: Tue, 6 Nov 2007 13:55:03 +0100 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Borja Marcos <BORJAMAR@SARENET.ES> Cc: freebsd-fs@freebsd.org, Niki Denev <nike_d@cytexbg.com>, freebsd-current@freebsd.org Subject: Re: ZFS kmem_map too small. Message-ID: <20071106125503.GN5268@garage.freebsd.pl> In-Reply-To: <A9A24A97-DBB7-42E2-BAA6-4D6CCB84E67E@SARENET.ES> References: <20071005000046.GC92272@garage.freebsd.pl> <20071008121523.GM2327@garage.freebsd.pl> <20071105215035.GC26730@heff.fud.org.nz> <2e77fc10711051531k41e7224dq6aaedb35cad8d9f2@mail.gmail.com> <6214AB9C-9F9B-4B9D-8B05-0B3DF5F6C16D@SARENET.ES> <20071106100015.GB5268@garage.freebsd.pl> <A9A24A97-DBB7-42E2-BAA6-4D6CCB84E67E@SARENET.ES>
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[-- Attachment #1 --] On Tue, Nov 06, 2007 at 11:20:34AM +0100, Borja Marcos wrote: > > On Nov 6, 2007, at 11:00 AM, Pawel Jakub Dawidek wrote: > > >>The machine has 6 hard disks configured as a raidz2 pool. > >> > >>Please let me know of any test anyone might need. > > > >If you use vm_kern.c.2.patch, can you show loader.conf and exact > >command > >that can provke the panic? > > loader.conf: > zfs_load="YES" > vfs.root.mountfrom="zfs:pool/root" > vm.kmem_size_max="1610612736" > vm.kmem_size="1610612736" > > Y bumped up the vnodes as well, as suggested at the ZFS tuning Wiki. > > (/etc/sysctl.conf) > kern.maxvnodes: 400000 The Wiki should be changed. Allow ZFS to autotune it, don't tune it by hand. > Anything else? (I just don't want to spam a big message with kernel > config, etc) I asked about exact command to trigger the panic. > When I did the tests I did not have a swap partition configured, but I > guess it shouldn't be > related (4 GB is plenty of memory). Anyway I'm going to try again with > a swap partition today. > (_Not_ on ZFS) so that I can get a kernel dump as well. Yes, do not use swap on ZFS. -- Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFHMGQnForvXbEpPzQRAsZCAJ9ePHQT/PqSjkfe3wB1lCXNXUkYowCghloH y4FVicWAH0M7aqSnuoNy3Is= =CpAD -----END PGP SIGNATURE-----help
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