[linux-lvm] lvmetad hang...

[Pirate Fibonacci]

Greeting All...

I've been using the lvm2py lib. after a predictable number usages of my
application, it appears that lvmetad halts. below is the relevant line from
top. upon kill the hung instance, my application will continue.


20807 root 20 0 23.934g 29356 3952 R 98.8 0.0 57:13.67 lvmetad

^^^^r^ ^^^^^^^^^^
% cpu
usage

any useful comments on what this maybe?

where may I find the source code for lvmetad ?

thanks

Jeffrey

[Zdenek Kabelac]

Post by Pirate Fibonacci
*
*
Greeting All...
I've been using the lvm2py lib. after a predictable number usages of my
application, it appears that lvmetad halts. below is the relevant line from
top. upon kill the hung instance, my application will continue.
20807 root 20 0 23.934g 29356 3952 R 98.8 0.0 57:13.67 lvmetad
^^^^r^ ^^^^^^^^^^
% cpu usage
any useful comments on what this maybe?
where may I find the source code for lvmetad ?

Hi

lvmetad is part of lvm2 source base spread in couple places:

lvm2/daemons/lvmetad
lmv2/libdaemon
lmv2/libdm


Usually it's best to attach to running lvmetad and explore it in gdb
(getting backtrace)

Also be sure you run with latest version - fixing bug in a year old code is
not usually helpful.

It's also good if you could prepare a reproducer case (so it could be placed
in test suite)

Zdenek