[Bug 571093] Re: multipath + libvirtd eats away more memory over time

[ariel]

Same memory leak here, running kvm+libvirtd+multipath-tools on nodes with SAN access over QLogic cards
However i noticed something which i guess is highly related:

udev is constantly "discovering" the 4 multipath devices
(sdb/sdc/sdd/sde) and causing a high CPU load of around 3 (8 CPU
system). "ps" shows a process tree like this again and again

  393 ?        S<s   22:09 udevd --daemon
20696 ?        S<     0:12  \_ udevd --daemon
 7171 ?        S<     0:00  |   \_ /sbin/multipath -v0 /dev/sdb
 7190 ?        R<     0:00  |       \_ /sbin/mpath_prio_emc /dev/sdd
20702 ?        S<     0:10  \_ udevd --daemon
 7177 ?        S<     0:00  |   \_ /sbin/multipath -v0 /dev/sdc
 7189 ?        R<     0:00  |       \_ /lib/udev/scsi_id -g -u -d /dev/sdb
31869 ?        S<     0:01  \_ udevd --daemon
 7179 ?        S<     0:00  |   \_ /sbin/multipath -v0 /dev/sdd
 7191 ?        R<     0:00  |       \_ /sbin/mpath_prio_emc /dev/sdb
31875 ?        S<     0:01  \_ udevd --daemon

(PIDs change all the time, they are really being called anew). 
Uploading the output of 2-3 seconds of "udevadm monitor -e"

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multipath + libvirtd eats away more memory over time
https://bugs.launchpad.net/bugs/571093
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