Date: Sun, 25 Oct 2009 00:38:35 -0500 From: Scot Hetzel <swhetzel@gmail.com> To: Doug Poland <doug@polands.org> Cc: freebsd-current@freebsd.org Subject: Re: Fatal trap 12 on ZFS in 8.0-RC1 Message-ID: <790a9fff0910242238h1c2966a6kd4f7edce34b7e47a@mail.gmail.com> In-Reply-To: <46e678eb1eeca98033b15979e034a765.squirrel@email.polands.org> References: <46e678eb1eeca98033b15979e034a765.squirrel@email.polands.org>
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On Sat, Oct 24, 2009 at 9:10 PM, Doug Poland <doug@polands.org> wrote: > Hello, > > I'm experimenting with ZFS on 8-0-RC1 (amd64) in a VMWare virtual > machine w/2GB RAM. =A0In installed ZFS on GPT root using the excellent > instructions at http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/RAIDZ1. > > All was well until I tried some benchmarking with > benchmarks/unixbench. =A0I kept getting kmem_map too small panics on the > filesystem tests so starting playing with vm.kmem_size. > > I finally got unixbench through the first 6 Filesystem Throughput > tests with: > vm.kmem_size=3D"1296M" > vm.kmem_size_max=3D"1296M" > vfs.zfs.arc_max=3D"128M" > vfs.zfs.vdev.cache.size=3D"24M" (i think) > > Unfortunately, ZFS paniced with: > Fatal trap 12: page fault while in kernel mode. Now, when I attempt to > restart the VM, as soon as the "boot menu" is gone, I immediately get > the same Fatal trap 12 panics again and cannot get past this point. > > I've got the 8.0-RC1 DVD and can run Fixit, but have no idea how to > repair this broken ZFS installation. =A0Suggestions welcome. > Try this to import your zpool in the Fixit environment: Fixit# kldload /mnt2/boot/kernel/opensolaris.ko Fixit# kldload /mnt2/boot/kernel/zfs.ko Fixit# zpool import -f -R /zroot zroot Scot
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