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Operating Systems Linux Red Hat LVM unmounted due to out of memory Post 302563475 by venikathir on Wednesday 12th of October 2011 08:34:31 AM
Old 10-12-2011
LVM unmounted due to out of memory

Hi ,
Our one of VMguest all lvm got unmounted once the machine is rebooted

when in repair state dmesg its showing an error out of memory killed process 22289 (lvm)

please refer screen shots attached

when i look the lvscan its showing all lvm are inactive
i checked throuh top there nothing used much memory
any idea how to get RCA

---------- Post updated 10-12-11 at 06:04 PM ---------- Previous update was 10-11-11 at 07:41 PM ----------

issue resolved
its related hugpages settings

we have changed the huge pages settings and resolved the issue

Actual Mem is 4GB and we assigned huge pages 3200 pages (i.e 6.25 Gb)

Thnx
 

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LVSCAN(8)						      System Manager's Manual							 LVSCAN(8)

NAME
lvscan - scan (all disks) for Logical Volumes SYNOPSIS
lvscan [-a|--all] [-b|--blockdevice] [-d|--debug] [-h|--help] [--ignorelockingfailure] [-P|--partial] [-v|--verbose] DESCRIPTION
lvscan scans all known volume groups or all supported LVM block devices in the system for defined Logical Volumes. The output consists of one line for each Logical Volume indicating whether or not it is active, a snapshot or origin, the size of the device and its allocation policy. Use lvs(8) or lvdisplay(8) to obtain more-comprehensive information about the Logical Volumes. OPTIONS
See lvm for common options. --all Include information in the output about internal Logical Volumes that are components of normally-accessible Logical Volumes, such as mirrors, but which are not independently accessible (e.g. not mountable). For example, after creating a mirror using 'lvcreate -m1 --mirrorlog disk', this option will reveal three internal Logical Volumes, with suffixes mimage_0, mimage_1, and mlog. -b, --blockdevice This option is now ignored. Instead, use lvs(8) or lvdisplay(8) to obtain the device number. SEE ALSO
lvm(8), lvcreate(8), lvdisplay(8) lvs(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) LVSCAN(8)
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