Dne 9.1.2013 21:20, Peter & Kelly Passchier napsal(a):
1. One-line summary
lvm2 hangs when creating snapshot of live root and IO to the root filesystem
is happening
2. Full description
Root filesystem ext4 on lvm2 extent in luks-encrypted
partition with mainline kernel 3.8-rc2.
This is causing a hang:
lvcreate -s -n oscopy -v -l 100%FREE /dev/secret/root 2>/root/savefile
See: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1096520
Attach full -vvvv trace.
Hmm bugreport talks about 2.6.35 kernel.
My first suspect would be the 'Debian way' of handling udev rules - handling
differes from the upstream solution and must be tracked and fixed on Debian.
6. Script to replicate the problem
lvcreate -s -n oscopy -v -l 100%FREE /dev/secret/root 2>/root/savefile
'-vvvv'
Attach also 'changes' to udev rules from the upstream solution.
Probably udevadm monitoring output would be also useful.
Any cookies left unfinished 'dmsetup udevcookies' ?
Zdenek
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