Date: Sat, 24 Oct 2009 21:10:15 -0500 From: "Doug Poland" <doug@polands.org> To: freebsd-current@freebsd.org Subject: Fatal trap 12 on ZFS in 8.0-RC1 Message-ID: <46e678eb1eeca98033b15979e034a765.squirrel@email.polands.org>
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Hello, I'm experimenting with ZFS on 8-0-RC1 (amd64) in a VMWare virtual machine w/2GB RAM. In 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. I 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="1296M" vm.kmem_size_max="1296M" vfs.zfs.arc_max="128M" vfs.zfs.vdev.cache.size="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. Suggestions welcome. -- Regards, Doug
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