Reported by Lazar Obradovic <laza> CMAN: Waiting to join or form a Linux-cluster CMAN: sending membership request CMAN: got node new-noc Got ENDTRANS from a node not the master: master: 6, sender: 1 CMAN: node new-noc is not responding - removing from the cluster ------------[ cut here ]------------ kernel BUG at /usr/src/cvs/cluster/cman-kernel/src/membership.c:2892! invalid operand: 0000 [#1] PREEMPT SMP Modules linked in: ipv6 qla2300 qla2xxx ohci_hcd gfs lock_dlm lock_harness dlm cman CPU: 2 EIP: 0060:[<f885c669>] Tainted: GF EFLAGS: 00010246 (2.6.7-gentoo-r11) EIP is at elect_master+0x2a/0x41 [cman] eax: 00000080 ebx: 00000080 ecx: f88a4000 edx: 00000000 esi: f8870c08 edi: f8870c00 ebp: f7139fc0 esp: f7139f90 ds: 007b es: 007b ss: 0068 Process cman_memb (pid: 7327, threadinfo=f7138000 task=c22ed1e0) Stack: f7afdb28 f8859d34 f7139fa4 00000001 f8858883 f7bf7494 fffffffb 00000000 f7138000 0000001f 00000000 c0103fb6 00000000 c22ed1e0 c01176e2 00100100 00200200 00000000 00000000 00000000 f88584d8 00000000 00000000 00000000 Call Trace: [<f8859d34>] a_node_just_died+0x130/0x181 [cman] [<f8858883>] membership_kthread+0x3ab/0x3e4 [cman] [<c0103fb6>] ret_from_fork+0x6/0x14 [<c01176e2>] default_wake_function+0x0/0x12 [<f88584d8>] membership_kthread+0x0/0x3e4 [cman] [<c01022a1>] kernel_thread_helper+0x5/0xb Code: 0f 0b 4c 0b a0 51 86 f8 31 c0 5b c3 8b 44 24 08 89 10 8b 42 Version-Release number of selected component (if applicable): How reproducible: Didn't try This maybe specific to his multicast setup, I'm not sure.
email from Lazar: "Well, I haven't been able to reproduce that any longer. It seems it's two-node related, since it stopped happening when I added more nodes. As far as I'm concerned, you may close the bug, and someone else might reopen it if this is still happening..."
Updating version to the right level in the defects. Sorry for the storm.