Hello. Is there any solution to this oops? I'm getting it since upgrade a couple of months ago. Use of RHEL4 branch didn't help at all. CMAN: Waiting to join or form a Linux-cluster CMAN: sending membership request CMAN: got node share2 CMAN: quorum regained, resuming activity bad: scheduling while atomic! [<c036d195>] schedule+0xb11/0xb16 [<f8bd3b69>] cl_sendack+0x105/0x162 [cman] [<f8bd06b9>] start_ack_timer+0x31/0x35 [cman] [<f8bd3313>] __sendmsg+0x4da/0x671 [cman] [<f8bdbef7>] add_barrier_callback+0x70/0x141 [cman] [<f8bdc00a>] callback_startdone_barrier_new+0x1f/0x23 [cman] [<f8bd4a5c>] check_barrier_complete_phase2+0xbe/0x103 [cman] [<f8bd4b7c>] process_barrier_msg+0xb9/0x133 [cman] [<f8bd0fd7>] process_incoming_packet+0x187/0x275 [cman] [<f8bd01aa>] receive_message+0xcb/0xe6 [cman] [<f8bd0342>] cluster_kthread+0x17d/0x32c [cman] [<c0116492>] default_wake_function+0x0/0x12 [<f8bd01c5>] cluster_kthread+0x0/0x32c [cman] [<c010230d>] kernel_thread_helper+0x5/0xb The same occurs on second node, with a slight difference: CMAN: node share1 rejoining scheduling while atomic: cman_comms/0x00000001/8850 .... I was getting this error while using 2.6.10 and 2.6.11. Now I downgraded kernel to 2.6.9 (which is RHEL4 native version AFAIK). Thank you in advance for help, best regards, Piotr ---------------------------------------------------------------------- Znajdz swoja milosc na wiosne... >>> http://link.interia.pl/f187a -- Linux-cluster@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/linux-cluster