Re: pvmove hangs
IMHO it is not arch or distro specific. It looks exactly like as https://bugzilla.redhat.com/show_bug.cgi?id=193330 and the LVM developers are keen for somebody with a reproducer. Dan, thank you very much for the link. Your tip at comment #10 helped. If I specify each logical volume, pvmove moves all data successfully: pvmove -v /dev/dasdd1 -n lvhome pvmove -v /dev/dasdd1 -n lvusr pvmove -v /dev/dasdd1 -n lvvar ... It seems to avoid a deadlock situation. I will provide the requested informations on the bugtracker. Best regards, Sebastian -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
pvmove hangs
Hello list! I try to move all logical volumes which reside on a minidisk (/dev/dasdd1) on DASD MOD9 to a minidisk (/dev/dasde1) on DASD MOD54. / and /boot reside on separate minidisks, the rest is LVM managed. I can reproduce the problem with a test system: zlinux:~ # df -h FilesystemSize Used Avail Use% Mounted on /dev/dasdc1 879M 113M 767M 13% / udev 247M 108K 247M 1% /dev /dev/dasdb145M 13M 30M 31% /boot /dev/mapper/system-lvhome 492M 33M 460M 7% /home /dev/mapper/system-lvopt 656M 35M 622M 6% /opt /dev/mapper/system-lvtmp 368M 33M 336M 9% /tmp /dev/mapper/system-lvusr 1.2G 563M 606M 49% /usr /dev/mapper/system-lvvar 876M 81M 796M 10% /var zlinux:~ # pvscan PV /dev/dasdd1 VG system lvm2 [4.57 GB / 1.09 GB free] PV /dev/dasde1 VG system lvm2 [4.80 GB / 4.80 GB free] zlinux:~ # pvmove -v /dev/dasdd1 Wiping cache of LVM-capable devices Finding volume group system Archiving volume group system metadata (seqno 7). Creating logical volume pvmove0 Executing: /sbin/modprobe dm-mirror Moving 292 extents of logical volume system/lvusr Moving 219 extents of logical volume system/lvvar Moving 164 extents of logical volume system/lvopt Moving 123 extents of logical volume system/lvhome Moving 92 extents of logical volume system/lvtmp Found volume group system Found volume group system Found volume group system Found volume group system Found volume group system Updating volume group metadata Creating volume group backup /etc/lvm/backup/system (seqno 8). Found volume group system Found volume group system Suspending system-lvusr (253:0) Found volume group system Found volume group system Suspending system-lvvar (253:1) Found volume group system Found volume group system Suspending system-lvopt (253:2) Found volume group system Found volume group system Suspending system-lvhome (253:3) Found volume group system Found volume group system Suspending system-lvtmp (253:4) Found volume group system Creating system-pvmove0 Loading system-pvmove0 table Resuming system-pvmove0 (253:5) system-pvmove0: device not found Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvusr table Resuming system-lvusr (253:0) Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvvar table Resuming system-lvvar (253:1) Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvopt table Resuming system-lvopt (253:2) Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvhome table Resuming system-lvhome (253:3) Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvtmp table Resuming system-lvtmp (253:4) Checking progress every 15 seconds /dev/dasdd1: Moved: 5.5% /dev/dasdd1: Moved: 10.8% /dev/dasdd1: Moved: 16.1% /dev/dasdd1: Moved: 21.3% /dev/dasdd1: Moved: 26.5% /dev/dasdd1: Moved: 31.9% /dev/dasdd1: Moved: 32.8% Updating volume group metadata Creating volume group backup /etc/lvm/backup/system (seqno 9). Found volume group system Found volume group system Suspending system-lvusr (253:0) Suspending system-pvmove0 (253:5) Found volume group system Found volume group system Suspending system-lvvar (253:1) Found volume group system Found volume group system Suspending system-lvopt (253:2) Found volume group system Found volume group system Suspending system-lvhome (253:3) Found volume group system Found volume group system Suspending system-lvtmp (253:4) Found volume group system Found volume group system Found volume group system Loading system-pvmove0 table Resuming system-pvmove0 (253:5) (here the output stops) Now the system freezes slowly: sshd still gives a login-prompt, but if I enter the password no login is possible. Other open ssh sessions freeze are working until I enter a command. After a few minutes sshd doesn't answer any more. If I reboot the system it doesn't comes up, because the pvmove is restartet during the boot and the system freezes again. I can rescue the system with a few steps: IPL into CMS, detach a LVM managed minidisk, boot the guest which doesn't comes up (Give root password to login), edit the fstab with ed and delete all mounts with LVM volumes, attach the minidisk again and reboot. The system comes up and pvmove starts to work
Re: pvmove hangs
Sebastian Korte píše v Po 09. 02. 2009 v 15:20 +0100: Hello list! I try to move all logical volumes which reside on a minidisk (/dev/dasdd1) on DASD MOD9 to a minidisk (/dev/dasde1) on DASD MOD54. / and /boot reside on separate minidisks, the rest is LVM managed. IMHO it is not arch or distro specific. It looks exactly like as https://bugzilla.redhat.com/show_bug.cgi?id=193330 and the LVM developers are keen for somebody with a reproducer. I can reproduce the problem with a test system: zlinux:~ # df -h FilesystemSize Used Avail Use% Mounted on /dev/dasdc1 879M 113M 767M 13% / udev 247M 108K 247M 1% /dev /dev/dasdb145M 13M 30M 31% /boot /dev/mapper/system-lvhome 492M 33M 460M 7% /home /dev/mapper/system-lvopt 656M 35M 622M 6% /opt /dev/mapper/system-lvtmp 368M 33M 336M 9% /tmp /dev/mapper/system-lvusr 1.2G 563M 606M 49% /usr /dev/mapper/system-lvvar 876M 81M 796M 10% /var zlinux:~ # pvscan PV /dev/dasdd1 VG system lvm2 [4.57 GB / 1.09 GB free] PV /dev/dasde1 VG system lvm2 [4.80 GB / 4.80 GB free] zlinux:~ # pvmove -v /dev/dasdd1 Wiping cache of LVM-capable devices Finding volume group system Archiving volume group system metadata (seqno 7). Creating logical volume pvmove0 Executing: /sbin/modprobe dm-mirror Moving 292 extents of logical volume system/lvusr Moving 219 extents of logical volume system/lvvar Moving 164 extents of logical volume system/lvopt Moving 123 extents of logical volume system/lvhome Moving 92 extents of logical volume system/lvtmp Found volume group system Found volume group system Found volume group system Found volume group system Found volume group system Updating volume group metadata Creating volume group backup /etc/lvm/backup/system (seqno 8). Found volume group system Found volume group system Suspending system-lvusr (253:0) Found volume group system Found volume group system Suspending system-lvvar (253:1) Found volume group system Found volume group system Suspending system-lvopt (253:2) Found volume group system Found volume group system Suspending system-lvhome (253:3) Found volume group system Found volume group system Suspending system-lvtmp (253:4) Found volume group system Creating system-pvmove0 Loading system-pvmove0 table Resuming system-pvmove0 (253:5) system-pvmove0: device not found Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvusr table Resuming system-lvusr (253:0) Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvvar table Resuming system-lvvar (253:1) Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvopt table Resuming system-lvopt (253:2) Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvhome table Resuming system-lvhome (253:3) Found volume group system Loading system-pvmove0 table Suppressed system-pvmove0 identical table reload. Loading system-lvtmp table Resuming system-lvtmp (253:4) Checking progress every 15 seconds /dev/dasdd1: Moved: 5.5% /dev/dasdd1: Moved: 10.8% /dev/dasdd1: Moved: 16.1% /dev/dasdd1: Moved: 21.3% /dev/dasdd1: Moved: 26.5% /dev/dasdd1: Moved: 31.9% /dev/dasdd1: Moved: 32.8% Updating volume group metadata Creating volume group backup /etc/lvm/backup/system (seqno 9). Found volume group system Found volume group system Suspending system-lvusr (253:0) Suspending system-pvmove0 (253:5) Found volume group system Found volume group system Suspending system-lvvar (253:1) Found volume group system Found volume group system Suspending system-lvopt (253:2) Found volume group system Found volume group system Suspending system-lvhome (253:3) Found volume group system Found volume group system Suspending system-lvtmp (253:4) Found volume group system Found volume group system Found volume group system Loading system-pvmove0 table Resuming system-pvmove0 (253:5) (here the output stops) Now the system freezes slowly: sshd still gives a login-prompt, but if I enter the password no login is possible. Other open ssh sessions freeze are working until I enter a command. After a few minutes sshd doesn't answer any more. If I reboot the system it doesn't comes up, because the pvmove
Re: pvmove hangs
On 2/9/2009 at 9:20 AM, Sebastian Korte zlinu...@gmail.com wrote: Hello list! I try to move all logical volumes which reside on a minidisk (/dev/dasdd1) on DASD MOD9 to a minidisk (/dev/dasde1) on DASD MOD54. / and /boot reside on separate minidisks, the rest is LVM managed. -snip- Now the system freezes slowly -snip- The system comes up and pvmove starts to work again: (lvm2copyd)-a y After pvmove is ready I replace the fstab with its original and reboot. Voila, here we go again. Try using pvmove --abort to kill the move in progress. This looks very similar to https://bugzilla.novell.com/show_bug.cgi?id=473309 pvmove freezes system that was just opened recently. I would suggest opening up a service request with your service provider. Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
