Date: Sun, 8 Feb 2009 22:59:31 -0600 From: Kevin Day <toasty@dragondata.com> To: freebsd-fs@freebsd.org Subject: zio->io_cv deadlock Message-ID: <8E12CEFC-25DE-4B82-97BD-7ED717650089@dragondata.com>
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I'm playing with a -CURRENT install from a couple of weeks ago. Everything seems okay for a few days, then eventually every process ends up stuck in zio->io_cv. If I go to the console, it's responsive until I try logging in, then login is stuck in zio->io_cv as well. Ctrl-Alt-Esc drops me into ddb, but then ddb hangs instantly. Nothing on the console or syslog before it hangs. Anyone seen anything similar? -- Kevin Possibly relevant info: 8 core Opteron 64GB RAM da1 at twa0 bus 0 target 0 lun 1 da1: <AMCC 9650SE-12M DISK 3.08> Fixed Direct Access SCSI-5 device da1: 100.000MB/s transfers da1: 4678158MB (9580867585 512 byte sectors: 255H 63S/T 596381C) server5# zpool list NAME SIZE USED AVAIL CAP HEALTH ALTROOT z 4.44T 1.19T 3.25T 26% ONLINE - server5# zpool status -v pool: z state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM z ONLINE 0 0 0 da1 ONLINE 0 0 0 errors: No known data errors server5# cat /boot/loader.conf vm.kmem_size_max="2048M" vm.kmem_size="2048M" vfs.zfs.arc_max="100M" zfs_load="YES" vfs.root.mountfrom="zfs:z" (tried lowering arc_max, didn't seem to help)
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