2005-10-06 15:08:30

by Tomasz Kłoczko

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Subject: [2.6.14-rc3-git3/x86_64]: lvrename stalls on rename snapshot volume


[root@v20z-2 ~]# vgs -a; lvs
File descriptor 3 left open
File descriptor 5 left open
File descriptor 7 left open
VG #PV #LV #SN Attr VSize VFree
users 1 2 0 wz--n 499,99G 49,99G
v20z.2 1 3 0 wz--n 63,75G 0
zie 1 3 0 wz--n 124,99G 56,99G
File descriptor 3 left open
File descriptor 5 left open
File descriptor 7 left open
LV VG Attr LSize Origin Snap% Move Log Copy%
prac users -wi-ao 225,00G
studenci users -wi-ao 225,00G
home v20z.2 -wi-ao 33,75G
root v20z.2 -wi-ao 10,00G
var v20z.2 -wi-ao 20,00G
mail zie -wi-ao 24,00G
mailman zie -wi-ao 8,00G
[root@v20z-2 ~]# lvcreate -s -L5G -c 4k -p r -n prac-1 /dev/users/prac
File descriptor 3 left open
File descriptor 5 left open
File descriptor 7 left open
Logical volume "prac-1" created
[root@v20z-2 ~]# lvs -a
File descriptor 3 left open
File descriptor 5 left open
File descriptor 7 left open
LV VG Attr LSize Origin Snap% Move Log Copy%
prac users owi-ao 225,00G
[prac-1] users sri-a- 5,00G prac 0,00
studenci users -wi-ao 225,00G
home v20z.2 -wi-ao 33,75G
root v20z.2 -wi-ao 10,00G
var v20z.2 -wi-ao 20,00G
mail zie -wi-ao 24,00G
mailman zie -wi-ao 8,00G
srv zie -wi-ao 36,00G
[root@v20z-2 ~]# lvrename /dev/users/prac-1 /dev/users/prac-2
File descriptor 3 left open
File descriptor 5 left open
File descriptor 7 left open

And in this poind lvrename stalls with sleeping in kernel in function:

# ps -eo wchan,args | grep lvrename
sync_b lvrename /dev/users/prac-1 /dev/users/prac-2
^^^^^^

lvrename can't be killed. Also system can't be shutdowned because hanging
lvrename stops shutdown. All other works correctly and there is kernel
messages.

kloczek
--
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*Ludzie nie maj? problem?w, tylko sobie sami je stwarzaj?*
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Tomasz K?oczko, sys adm @zie.pg.gda.pl|*e-mail: [email protected]*