[linux-lvm] lvmetad hang...
Zdenek Kabelac
zkabelac at redhat.com
Mon Aug 18 11:33:15 UTC 2014
Dne 15.8.2014 v 19:33 Pirate Fibonacci napsal(a):
> *
> *
> 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
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