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Several times a single LXC guest became unreachable, the host's "l= oad" started to rise slowly but continously up to ~1000 (!) and more, fortu= nately with the host still allowing to login via ssh but unfortunately with= only one way out: Reset button. Ouch. WTF.
The details and further solution attempts are now described and tracked = in Ever-rising load on Debian jessie + DRBD8 + LXC host pairs.
In 3 of the first 4 cases of the problem described above the first unusu= al syslog entry hinted at DRBD.
Therefore we packaged (Debianized) the most-recent upstream kernel modul=
.
We are currently unsure wether DRBD has anything to do with the problem, bu=
t are still maintaining those packages, see Debian jessie builds of DKMSed upstream DRBD8=
Kernel Module.
See bottom of Ever-rising load on Debian jessie + DRBD8 + LXC host pair= s.