FreeBSD Bugzilla – Attachment 161674 Details for
Bug 193803
fix zvol rename failing due to out of order locking
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deadlocking testcase
snap-rename.sh (text/plain), 534 bytes, created by
krichy
on 2015-10-03 11:10:54 UTC
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Description:
deadlocking testcase
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Creator:
krichy
Created:
2015-10-03 11:10:54 UTC
Size:
534 bytes
patch
obsolete
>#!/bin/bash > >fs="main/tmp" > >zfs destroy -r "$fs/vol" >zfs create -s -V 1G -b 16k "$fs/vol" > >(while : ; do > s=1 > echo "Creating snapshot" > zfs snapshot -r "$fs@$s" > for n in 2 3 4 5 6 7 8 9 10 11 12 13 14 15; 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/main/tmp/vol bs=1k count=16k >done)
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