From: Andre Tomt <andre@tomt.net>
To: linux-kernel@vger.kernel.org
Subject: 2.6.10, lockup on lvrename of a snapshot volume
Date: Sat, 25 Dec 2004 16:16:08 +0100 [thread overview]
Message-ID: <41CD8438.10207@tomt.net> (raw)
device-mapper snapshots lock up the kernel if you lvrename the snapshot
volume. The original volume has to be mounted for this to happen.
pvcreate /dev/hdb1
vgcreate testvg /dev/hdb1
lvcreate -L10G -n test testvg
mke2fs -j /dev/mapper/testvg-test
mount /dev/mapper/testvg-test /mnt
lvcreate -s -l 128 -n test_backup testvg/test
lvrename testvg test_backup test_backup.tmp
<lockup>
SysRq Trace of lvrename:
dm_unplug_all [dm_mod]
io_shedule
sync_buffer
sync_buffer
__wait_on_bit
out_of_line_wait_on_bit
sync_buffer
wake_bit_function
wake_bit_function
sync_dirty_buffer
ext3_unlockfs [ext3]
thaw_bdev
__unlock_fs [dm_mod]
dm_resume [dm_mod]
do_resume [dm_mod]
dev_suspend [dm_mod]
ctl_ioctl [dm_mod]
sys_ioctl
syscall_call
LVM2 version is 2.00.24 (Debian Sarge userland), kernel 2.6.10 from
kernel.org. It has been reported that this affects 2.6.9 also, but I
have not verified this myself.
next reply other threads:[~2004-12-25 15:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-25 15:16 Andre Tomt [this message]
2004-12-25 15:46 ` 2.6.10, lockup on lvrename of a snapshot volume Martin Hermanowski
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