kernel: (13,3):o2hb_write_timeout:242 ERROR: Heartbeat write timeout to device sdd1 after 12000 milliseconds
kernel: Heartbeat thread (13) printing last 24 blocking operations (cur = 4):
kernel: Heartbeat thread stuck at waiting for read completion, stuffing current time into that blocker (index 4)
kernel: Index 5: took 0 ms to do submit_bio for read
kernel: Index 6: took 0 ms to do waiting for read completion
kernel: Index 7: took 0 ms to do bio alloc write
kernel: Index 8: took 0 ms to do bio add page write
kernel: Index 9: took 0 ms to do submit_bio for write
kernel: Index 10: took 0 ms to do checking slots
kernel: Index 11: took 0 ms to do waiting for write completion
kernel: Index 12: took 2002 ms to do msleep
kernel: Index 13: took 0 ms to do allocating bios for read
kernel: Index 14: took 0 ms to do bio alloc read
kernel: Index 15: took 0 ms to do bio add page read
kernel: Index 16: took 0 ms to do submit_bio for read
kernel: Index 17: took 0 ms to do waiting for read completion
kernel: Index 18: took 0 ms to do bio alloc write
kernel: Index 19: took 0 ms to do bio add page write
kernel: Index 20: took 0 ms to do submit_bio for write
kernel: Index 21: took 0 ms to do checking slots
kernel: Index 22: took 0 ms to do waiting for write completion
kernel: Index 23: took 2004 ms to do msleep
kernel: Index 0: took 0 ms to do allocating bios for read
kernel: Index 1: took 0 ms to do bio alloc read
kernel: Index 2: took 0 ms to do bio add page read
kernel: Index 3: took 0 ms to do submit_bio for read
kernel: Index 4: took 9995 ms to do waiting for read completion
kernel: (13,3):o2hb_stop_all_regions:1682 ERROR: stopping heartbeat on all active regions.
kernel: Kernel panic - not syncing: *** ocfs2 is very sorry to be fencing this system by panicing ***