Date: Tue, 02 Jun 2015 14:14:13 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: freebsd-virtualization@FreeBSD.org Subject: bhyve: corrupting zfs pools? Message-ID: <556D9005.4020802@FreeBSD.org>
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I am doing a simple experiment. I get FreeBSD image from here: ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/ISO-IMAGES/11.0/FreeBSD-11.0-CURRENT-amd64-r283577-20150526-memstick.img.xz Then I run in bhyve with two additional "disks" created with truncate -s 4g: $ bhyveload -m 1G -d ~/tmp/FreeBSD-11.0-CURRENT-amd64-r283577-20150526-memstick.img test $ bhyve -A -HP -s 0:0,hostbridge -s 1,lpc -s 2:0,virtio-net,tap0 -s 3:0,virtio-blk,/home/avg/tmp/FreeBSD-11.0-CURRENT-amd64-r283577-20150526-memstick.img -s 3:1,virtio-blk,/tmp/l2arc-test/hdd1,sectorsize=512/4096 -s 3:2,virtio-blk,/tmp/l2arc-test/hdd2,sectorsize=512/4096 -l com1,stdio -l com2,/dev/nmdm0A -c 2 -m 1g test Note sectorsize=512/4096 options. Not sure if it's them that cause the trouble. Then, in the VM: $ zpool create l2arc-test mirror /dev/vtbd1 /dev/vtbd2 $ zfs create -p l2arc-test/ROOT/initial $ tar -c --one-file-system -f - / | tar -x -C /l2arc-test/ROOT/initial -f - Afterwards, zpool status -v reports no problem. But then I run zpool scrub and get the following in the end: $ zpool status -v pool: l2arc-test state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: http://illumos.org/msg/ZFS-8000-8A scan: scrub repaired 356K in 0h0m with 9 errors on Tue Jun 2 13:58:17 2015 config: NAME STATE READ WRITE CKSUM l2arc-test ONLINE 0 0 9 mirror-0 ONLINE 0 0 18 vtbd1 ONLINE 0 0 25 vtbd2 ONLINE 0 0 23 errors: Permanent errors have been detected in the following files: /l2arc-test/ROOT/initial/usr/bin/svnlitesync /l2arc-test/ROOT/initial/usr/freebsd-dist/kernel.txz /l2arc-test/ROOT/initial/usr/freebsd-dist/src.txz /l2arc-test/ROOT/initial/usr/lib/clang/3.6.1/lib/freebsd/libclang_rt.asan-x86_64.a The same issue is reproducible with ahci-hd. My host system is a recent amd64 CURRENT as well. The hardware platform is AMD. -- Andriy Gapon
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