Date: Tue, 13 Aug 2013 22:31:00 +0200 (CEST) From: Richard Kojedzinszky <krichy@cflinux.hu> To: freebsd-fs@freebsd.org Subject: zvol snapshot recursive rename hang Message-ID: <alpine.BSF.2.00.1308132228350.78352@pi.nmdps.net>
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[-- Attachment #1 --] Dear ZFS devs, I've attached a script, which on releng/9.2 causes a deadlock somewhere. And what is strange to me that deadman does not cause a panic. It should, right? Thanks in advance, Kojedzinszky Richard [-- Attachment #2 --] #!/bin/bash fs="vol0/data" zfs destroy -r "$fs/vol" zfs create -s -V 1G -b 128k "$fs/vol" (while : ; do s=1 echo "Creating snapshot" zfs snapshot -r "$fs@$s" for n in 2 3 4 5 ; do echo "Renaming snapshot $s -> $n" zfs rename -r "$fs@$s" "$fs@$n" s=$n done echo "Destroying snapshot" zfs destroy -r "$fs@$s" done) & (while : ; do dd if=/dev/urandom of=/dev/zvol/$fs/vol bs=1M count=1 done)
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