further debug. While the node starts and clvmd hangs mount -t debugfs debug /sys/kernel/debug # dlm_tool lockdump clvmd id 024d0001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthdh8uMexWiIBPmEecuGc42XgLwwm2VcXU" id 01710001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthFI8d5cBsh6WNN2hG8fSaVCWFgyErPeuf" id 00a60001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthn6uU8cevFXXqDjEST8ZU2qXq3p8sLwK0" id 00f60001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthoRaWOK9JbmgcdN2nAzp3n6cTuiY5Mlvb" id 01de0001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthd0ES941PYa0eQHJIi15nPg6cJDh1MhsJ" id 02cd0001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthjwF6DZGPkgfr7SvUb0iDjOA7dXLu34nF" id 01260001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujth2c3V108uX4b92NJhcvQNVNct8Q1TOnqe" id 03240001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthPovzZnXIFevTRFG8Lj6NLFd0sY98Q1hZ" id 02af0001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthnjnkiGcK071zjtZSRsqRaLnwLxuhibme" id 03be0001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthPQPNHrR52t4oJZGfyj0eR8l5cPD4PKNu" id 01e80001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthWpkWKkhPdtQ8D2x5Soe6Rte8CWO9KyiG" id 025b0001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthlt7HrhWKbyVW8EO3QOf7qwmyenTI0GUD" id 03120001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthWQNoaQT13WPJEtK4310KZOmryslXdWAT" id 00d70001 gr CR rq IV pid 3155 master 0 "7w53faJiHU9ZYs0Kw8CmFcdsSXVqujthijkcH4Hhu5OGGTWnxnLo4WxAZsjoTzeV" In the mean time I opened a CentOS bug too. Anyone pointing to how to read the output? Thanks, Gianluca -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster