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<p class="MsoNormal"><span lang="EN-US">Hi, everyone: </span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">As the disk is umounted, the host is panic or bloked.</span></p>
<p class="MsoNormal"><span lang="EN-US">The host must be repowered. </span></p>
<p class="MsoNormal"><span lang="EN-US">The test scenario is with Linux kernel 3.13.6.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:01 ZJ-HZDX-0321-D20-CVK-03 kernel: [870221.355731] sd 7:0:0:0: [sdl] Very big device. Trying to use READ CAPACITY(16).</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782364] (umount,44814,19):dlm_prepare_lvb_for_migration:1205 ERROR: Mismatched lvb in lock cookie=2:519367, name=M00000000000000000002094cc0d288, node=2</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782383] lockres: M00000000000000000002094cc0d288, owner=3, state=32</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782386] last used: 0, refcnt: 4, on purge list: no</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782389] on dirty list: no, on reco list: no, migrating pending: no</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782392] inflight locks: 0, asts reserved: 0</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782394] refmap nodes: [ 1 2 ], inflight=0</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782400] granted queue:</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782405] type=3, conv=-1, node=1, cookie=1:7, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n), pending=(conv=n,lock=n,cancel=n,unlock=n)</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782410] type=3, conv=-1, node=2, cookie=2:519367, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n), pending=(conv=n,lock=n,cancel=n,unlock=n)</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782412] converting queue:</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782414] blocked queue:</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782457] ------------[ cut here ]------------</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782462] Kernel BUG at ffffffffa02f8d4f [verbose debug info unavailable]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782469] invalid opcode: 0000 [#1] SMP
</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782476] Modules linked in: ext2(F) ocfs2(OF) quota_tree(F) ip6table_filter(F) ip6_tables(F) iptable_filter(F) ip_tables(F) ebtable_nat(F) ebtables(F) x_tables(F)
8021q(F) mrp(F) garp(F) stp(F) llc(F) vhost_net(F) macvtap(F) macvlan(F) vhost(F) kvm_intel(F) kvm(F) ib_iser(F) rdma_cm(F) ib_cm(F) iw_cm(F) ib_sa(F) ib_mad(F) ib_core(F) ib_addr(F) iscsi_tcp(F) libiscsi_tcp(F) libiscsi(F) scsi_transport_iscsi(F) ocfs2_dlmfs(OF)
ocfs2_stack_o2cb(OF) ocfs2_dlm(OF) ocfs2_nodemanager(OF) ocfs2_stackglue(OF) configfs(F) openvswitch(OF) gre(F) nfsd(F) nfs_acl(F) auth_rpcgss(F) nfs(F) fscache(F) lockd(F) sunrpc(F) psmouse(F) dm_multipath(F) sb_edac(F) ipmi_si(F) edac_core(F) serio_raw(F)
ioatdma(F) hpilo(F) gpio_ich(F) scsi_dh(F) hpwdt(F) mac_hid(F) dca(F) acpi_power_meter(F) lpc_ich(F) lp(F) parport(F) tg3(F) ptp(F) hpsa(F) pps_core(F) bnx2x(F) libcrc32c(F) mdio(F) nbd(F)</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782597] CPU: 19 PID: 44814 Comm: umount Tainted: GF O 3.13.6 #1</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782603] Hardware name: H3C FlexServer R390, BIOS P70 09/18/2013</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782609] task: ffff881772fae000 ti: ffff881385d8a000 task.ti: ffff881385d8a000</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782616] RIP: 0010:[<ffffffffa02f8d4f>] [<ffffffffa02f8d4f>] dlm_add_lock_to_array+0x1cf/0x1e0 [ocfs2_dlm]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782637] RSP: 0018:ffff881385d8b9d8 EFLAGS: 00010246</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782643] RAX: 0000000000000000 RBX: ffff880049d33600 RCX: 0000000000000006</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782650] RDX: 0000000000000007 RSI: 0000000002680266 RDI: ffff8817fbf57170</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782656] RBP: ffff881385d8ba28 R08: 000000000000000a R09: 0000000000000000</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782662] R10: 0000000000047a48 R11: 0000000000047a47 R12: ffff8811b3d5b000</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782669] R13: ffff8811b3d5b080 R14: ffff8817fbf570e8 R15: 0000000000000000</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782676] FS: 00007fbdb8d5e800(0000) GS:ffff88183f8e0000(0000) knlGS:0000000000000000</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782683] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782689] CR2: 00007fbdb8378120 CR3: 00000015de25f000 CR4: 00000000000407e0</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782695] Stack:</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782699] ffff881300000002 000000000007ecc7 ffff88170000001f ffff8817faf6a9e0</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782712] 0000000000000002 0000000000000002 0000000000000000 ffff880049d33600</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782723] 0000000000000002 ffff8811b3d5b000 ffff881385d8bae8 ffffffffa02fd5eb</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782734] Call Trace:</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782750] [<ffffffffa02fd5eb>] dlm_send_one_lockres+0x19b/0x4f0 [ocfs2_dlm]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782765] [<ffffffff81083f19>] ? flush_workqueue+0x1c9/0x610</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782780] [<ffffffffa030aa4b>] dlm_empty_lockres+0x4cb/0x1140 [ocfs2_dlm]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782795] [<ffffffff810ada96>] ? autoremove_wake_function+0x16/0x40</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782804] [<ffffffff810ad358>] ? __wake_up_common+0x58/0x90</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782817] [<ffffffffa02f40a0>] dlm_unregister_domain+0x270/0x890 [ocfs2_dlm]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782829] [<ffffffff81099cf5>] ? check_preempt_curr+0x75/0xa0</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782840] [<ffffffffa02e62dc>] ? o2cb_cluster_disconnect+0x3c/0x60 [ocfs2_stack_o2cb]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782855] [<ffffffff811a7824>] ? kfree+0x134/0x170</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782864] [<ffffffffa02e62e4>] o2cb_cluster_disconnect+0x44/0x60 [ocfs2_stack_o2cb]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782878] [<ffffffffa025cb6e>] ocfs2_cluster_disconnect+0x2e/0x68 [ocfs2_stackglue]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782916] [<ffffffffa04f6917>] ocfs2_dlm_shutdown+0xb7/0x100 [ocfs2]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782952] [<ffffffffa0544752>] ocfs2_dismount_volume+0x202/0x3f0 [ocfs2]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782965] [<ffffffff8115324b>] ? filemap_fdatawait+0x2b/0x30</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.782974] [<ffffffff81154f64>] ? filemap_write_and_wait+0x34/0x60</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783004] [<ffffffffa0544977>] ocfs2_put_super+0x37/0x90 [ocfs2]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783017] [<ffffffff811c3fde>] generic_shutdown_super+0x7e/0x110</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783025] [<ffffffff811c40a0>] kill_block_super+0x30/0x80</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783053] [<ffffffffa0541043>] ocfs2_kill_sb+0x83/0xa0 [ocfs2]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783062] [<ffffffff811c42ed>] deactivate_locked_super+0x4d/0x80</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783070] [<ffffffff811c4f3e>] deactivate_super+0x4e/0x70</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783082] [<ffffffff811e0ea8>] mntput_no_expire+0xc8/0x150</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783092] [<ffffffff811e211f>] SyS_umount+0xaf/0x3b0</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783106] [<ffffffff81760fbf>] tracesys+0xe1/0xe6</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783111] Code: 48 81 c6 c0 04 00 00 41 b9 b5 04 00 00 49 c7 c0 20 51 31 a0 48 c7 c7 60 7c 31 a0 31 c0 e8 c0 2a 45 e1 48 8b 7b 40 e8 71 d5 ff ff <0f> 0b 66 66 66 66
66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 </span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783179] RIP [<ffffffffa02f8d4f>] dlm_add_lock_to_array+0x1cf/0x1e0 [ocfs2_dlm]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.783192] RSP <ffff881385d8b9d8></span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:08 ZJ-HZDX-0321-D20-CVK-03 kernel: [870227.844940] ---[ end trace ccf348a85391d27e ]---</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:28 ZJ-HZDX-0321-D20-CVK-03 kernel: [870247.737249] o2dlm: Leaving domain 1220B17D51D141C784B30E8FE4C7E19C</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:30 ZJ-HZDX-0321-D20-CVK-03 kernel: [870249.949859] ocfs2: Unmounting device (8,176) on (node 3)</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 12 20:55:30 ZJ-HZDX-0321-D20-CVK-03 multipathd: sdl: remove path (uevent)</span></p>
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