Bug 71361 - LVM operations returns: [vectors]: munlock failed: Cannot allocate memory
Summary: LVM operations returns: [vectors]: munlock failed: Cannot allocate memory
Status: CLOSED INVALID
Alias: None
Product: IO/Storage
Classification: Unclassified
Component: LVM2/DM (show other bugs)
Hardware: ARM Linux
: P1 high
Assignee: Alasdair G Kergon
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-03-01 19:29 UTC by Marcin
Modified: 2015-01-06 18:54 UTC (History)
1 user (show)

See Also:
Kernel Version: 3.13.1-kirkwood-tld-2
Subsystem:
Regression: No
Bisected commit-id:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Marcin 2014-03-01 19:29:03 UTC 
Hardware: zyxel NAS server NSA325-v2,ARM arch, 2-bay dysk, the newest debian, the newest available kernel, the newest available lvm2 packages.



root@debian:~# /sbin/vgchange -aly --ignorelockingfailure eld4
  ffff0000-ffff1000 r-xp 00000000 00:00 0          [vectors]: mlock failed: Cannot allocate memory
  4 logical volume(s) in volume group "eld4" now active
  ffff0000-ffff1000 r-xp 00000000 00:00 0          [vectors]: munlock failed: Cannot allocate memory


the same problems when I create volume


root@debian:~# uname -a
Linux debian 3.13.1-kirkwood-tld-2 #1 PREEMPT Tue Feb 4 03:19:07 PST 2014 armv5tel GNU/Linux


ii  lvm2  2.02.95-8     armel      Linux Logical Volume Manager



Sounds similar to:
https://lists.fedorahosted.org/pipermail/lvm2-commits/2012-November/000391.html

this is bug of kernel or LVM2 ?
Comment 1 Marcin 2014-03-01 19:31:08 UTC 
hmmm....

root@debian:~# cat /etc/apt/sources.list
deb http://ftp.us.debian.org/debian wheezy main
deb http://security.debian.org/ wheezy/updates main contrib non-free
root@debian:~# cat /etc/debian_version 
7.3
Comment 2 Marcin 2014-03-02 18:25:29 UTC 
after some use of disk, in dmesg I saw:

[70518.895380] JBD2: Spotted dirty metadata buffer (dev = dm-2, blocknr = 7663232). There's a risk of filesystem corruption in case of system crash.
[76948.242699] JBD2: Spotted dirty metadata buffer (dev = dm-2, blocknr = 84693853). There's a risk of filesystem corruption in case of system crash.
Comment 3 Marcin 2014-03-03 21:47:14 UTC 
I'd like to confirm ... that version: 2.02.104-2 of lvm2 package is not affected.
So this only needs to build newer version for wheezy distro (armel).
Comment 4 Alasdair G Kergon 2015-01-06 18:54:32 UTC 
The userspace patch should be sufficient.
Note You need to log in before you can comment on or make changes to this bug.