Hi, When trying to add a new OSD to my cluster the ceph-osd process hangs: # ceph-osd -i $id --mkfs --mkkey <nothing> At this point I have to explicitly kill -9 the ceph-osd since it doesn't respond to anything. It also didn't adhere to my foreground debug log request; the logs are empty. Stracing the ceph-osd [2] shows its very busy with this: nanosleep({0, 2000001}, NULL) = 0 gettimeofday({1415741192, 862216}, NULL) = 0 nanosleep({0, 2000001}, NULL) = 0 gettimeofday({1415741192, 864563}, NULL) = 0 I've rebuilt python to undo a threading regression [2], though that's unrelated to this issue. It did fix ceph not returning properly after commands like 'ceph osd tree' though, so it is usefull. This machine is Fedora 21 on ARM with ceph-0.80.7-1.fc21.armv7hl. The mon/mds/osd are all x86, CentOS 7. Could this be a configuration issue on my end or is something just broken on my platform? # lscpu Architecture: armv7l Byte Order: Little Endian CPU(s): 2 On-line CPU(s) list: 0,1 Thread(s) per core: 1 Core(s) per socket: 2 Socket(s): 1 Model name: ARMv7 Processor rev 4 (v7l) [1] http://paste.openstack.org/show/132555/ [2] http://bugs.python.org/issue21963 Regards, Harm _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com