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Description of problem: I get a message in dmesg and /var/log/messages every 10 seconds: lvm[1477]: Another thread is handling an event. Waiting... Apr 13 13:09:42 kitlaptop lvm[1477]: Another thread is handling an event. Waiting... Apr 13 13:09:52 kitlaptop lvm[1477]: Another thread is handling an event. Waiting... Apr 13 13:10:02 kitlaptop lvm[1477]: Another thread is handling an event. Waiting... Version-Release number of selected component (if applicable): Name : lvm2 Arch : i686 Version : 2.02.73 Release : 3.fc14 How reproducible: This starts at bootup Steps to Reproduce: This laptop originally had Fedora 11 and RHEL5. F14 had replaced F11 and the RHEL5 is untouched. Actual results: Expected results: Additional info: I have found a similar message: http://www.redhat.com/archives/linux-lvm/2010-November/msg00046.html
This one's been bugging me for awhile now. Also an upgrade. Original install was f11 and now at f13. One notable observation...two PVs on the same array: # fdisk -l /dev/cciss/c0d0 Disk /dev/cciss/c0d0: 73.4 GB, 73372631040 bytes 255 heads, 32 sectors/track, 17562 cylinders Units = cylinders of 8160 * 512 = 4177920 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00038857 Device Boot Start End Blocks Id System /dev/cciss/c0d0p1 * 1 51 204800 83 Linux Partition 1 does not end on cylinder boundary. /dev/cciss/c0d0p2 51 5192 20975616 8e Linux LVM Partition 2 does not end on cylinder boundary. /dev/cciss/c0d0p3 5192 17562 50469452+ 8e Linux LVM Partition 3 does not end on cylinder boundary. # pvs PV VG Fmt Attr PSize PFree /dev/cciss/c0d0p2 vg_sys lvm2 a- 20.00g 3.50g /dev/cciss/c0d0p3 vg_dat lvm2 a- 48.12g 16.62g
And each of those PVs has different PE size and are mapped to separate volume groups.
Created attachment 521624 [details] System information, logs Hi, I have an extended version of this problem. In addition to getting entries in /var/log/messages saying: Sep 6 15:48:54 nandan lvm[1187]: Another thread is handling an event. Waiting... ... the shutdown time is now more than 5 minutes. I see the following lines during shutdown Not stopping monitoring, this is a dangerous operation. Please use force-stop to override. lvm2-monitor.service: Control process exited. code=exited status=1 There are still devices being monitored Refusing to exit. This condition has started only after I made snapshot volumes to use in virtual machines. Details of my machine and messages are attached in nandan-system-info.txt.gz
(In reply to comment #3) > ... the shutdown time is now more than 5 minutes. I see the following lines > during shutdown > > Not stopping monitoring, this is a dangerous operation. Please use force-stop > to override. > lvm2-monitor.service: Control process exited. code=exited status=1 > There are still devices being monitored > Refusing to exit. > This is a different problem, tracked by bug #681582. > This condition has started only after I made snapshot volumes to use in virtual > machines. > If there's nothing to monitor (no snapshots/mirrors) then the shutdown is clean as we don't need to stop any monitoring.
This also happens to me on: [root@v log]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.2 (Santiago) and is accompanied by short hangs of a few seconds every few seconds. I too have 2 pvs on one array: [root@v log]# parted -l /dev/sda | less Model: HP LOGICAL VOLUME (scsi) Disk /dev/sda: 4001GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 525MB 524MB ext4 boot 2 525MB 63.4GB 62.9GB lvm 3 63.4GB 4001GB 3937GB lvm and get tons of these error messages: [root@v log]# tail messages Dec 7 15:26:25 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:26:25 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:26:35 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:26:45 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:26:45 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:26:45 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:26:55 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:26:55 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:27:05 v1 lvm[1235]: Another thread is handling an event. Waiting... Dec 7 15:27:15 v1 lvm[1235]: Another thread is handling an event. Waiting... and like I said, the server hangs for a few seconds every few seconds. I think I'm going to have to re-install and having the raid card present a couple volumes from the RAID10 array.
Petr Rockai patched this and those messages should not appear anymore, see also rhbz #771419 comment 6 (fixed in lvm2 v2.02.91). (In reply to comment #5) > This also happens to me on: > > [root@v log]# cat /etc/redhat-release > Red Hat Enterprise Linux Server release 6.2 (Santiago) > > and is accompanied by short hangs of a few seconds every few seconds. ... > > I think I'm going to have to re-install and having the raid card present a > couple volumes from the RAID10 array. Can you still hit these hangs? If yes, please open a new bug report for RHEL adding an strace log and/or lvm command's -vvvv log.
Fixed in lvm2-2.02.91-2.fc18.