my last mail was too long, here the backtrace of pmxcfs in gist node1-bt -> where the corosync is restarted each minute -------- https://gist.github.com/aderumier/ed21f22aa6ed9099ec0199255112f6b6 node2-bt -> other node hanging too -------- https://gist.github.com/aderumier/31fb72b93e77a93fbaec975bc54dfb3a