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SubjectRe: [Ocfs2-users] [OCFS2] Crash at o2net_shutdown_sc()
Yes that was the crash I was referring to which stopped me from testing 
my other patch on mainline. I think the crashes started since some
workqueue patches introduced by commit
57b30ae77bf00d2318df711ef9a4d2a9be0a3a2a Earlier kernels should be fine.

Patch https://lkml.org/lkml/2012/10/18/592 tried to address one fix
which helped ramster that uses same ocfs2/o2net code. There still seems
to be another problem that crashes ocfs2.

On 03/01/2013 01:25 PM, richard -rw- weinberger wrote:
> Hi!
>
> Using 3.8.1 OCFS2 crashes while joining nodes to the cluster.
> The cluster consists of 10 nodes, while node3 joins the kernel on node3 crashes.
> (Somtimes later...)
> See dmesg below.
> Is this a known issue? I didn't test older kernels so far.
>
> node1:
> [ 1471.881922] o2dlm: Joining domain 1352E2692E704EEB8040E5B8FF560997
> ( 0 ) 1 nodes
> [ 1471.919522] JBD2: Ignoring recovery information on journal
> [ 1471.947027] ocfs2: Mounting device (253,16) on (node 0, slot 0)
> with ordered data mode.
> [ 1475.802497] o2net: Accepted connection from node node2 (num 1) at
> 192.168.66.2:7777
> [ 1481.814048] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 8
> [ 1481.814955] o2net: No longer connected to node node2 (num 1) at
> 192.168.66.2:7777
> [ 1482.468827] o2net: Accepted connection from node node3 (num 2) at
> 192.168.66.3:7777
> [ 1511.904100] o2net: No connection established with node 1 after 30.0
> seconds, giving up.
> [ 1514.472995] o2net: Connection to node node3 (num 2) at
> 192.168.66.3:7777 shutdown, state 8
> [ 1514.473960] o2net: No longer connected to node node3 (num 2) at
> 192.168.66.3:7777
> [ 1516.076044] o2net: Accepted connection from node node2 (num 1) at
> 192.168.66.2:7777
> [ 1520.181430] o2dlm: Node 1 joins domain
> 1352E2692E704EEB8040E5B8FF560997 ( 0 1 ) 2 nodes
> [ 1544.544030] o2net: No connection established with node 2 after 30.0
> seconds, giving up.
> [ 1574.624029] o2net: No connection established with node 2 after 30.0
> seconds, giving up.
>
> node2:
> [ 1475.613170] o2net: Connected to node node1 (num 0) at 192.168.66.1:7777
> [ 1481.620253] o2hb: Unable to stabilize heartbeart on region
> 1352E2692E704EEB8040E5B8FF560997 (vdb)
> [ 1481.622489] o2net: No longer connected to node node1 (num 0) at
> 192.168.66.1:7777
> [ 1515.886605] o2net: Connected to node node1 (num 0) at 192.168.66.1:7777
> [ 1519.992766] o2dlm: Joining domain 1352E2692E704EEB8040E5B8FF560997
> ( 0 1 ) 2 nodes
> [ 1520.017054] JBD2: Ignoring recovery information on journal
> [ 1520.078888] ocfs2: Mounting device (253,16) on (node 1, slot 1)
> with ordered data mode.
> [ 1520.159590] mount.ocfs2 (2186) used greatest stack depth: 2568 bytes left
>
> node3:
> [ 1482.836865] o2net: Connected to node node1 (num 0) at 192.168.66.1:7777
> [ 1482.837542] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1484.840952] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1486.844994] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1488.848952] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1490.853052] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1492.857046] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1494.861042] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1496.865024] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1498.869021] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1500.873016] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1502.877056] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1504.881042] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1506.885040] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1508.888991] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1510.893077] o2net: Connection to node node2 (num 1) at
> 192.168.66.2:7777 shutdown, state 7
> [ 1512.843172] (mount.ocfs2,2179,0):dlm_request_join:1477 ERROR: Error
> -107 when sending message 510 (key 0x666c6172) to node 1
> [ 1512.845580] (mount.ocfs2,2179,0):dlm_try_to_join_domain:1653 ERROR:
> status = -107
> [ 1512.847778] (mount.ocfs2,2179,0):dlm_join_domain:1955 ERROR: status = -107
> [ 1512.849334] (mount.ocfs2,2179,0):dlm_register_domain:2214 ERROR:
> status = -107
> [ 1512.850921] (mount.ocfs2,2179,0):o2cb_cluster_connect:368 ERROR:
> status = -107
> [ 1512.852511] (mount.ocfs2,2179,0):ocfs2_dlm_init:3004 ERROR: status = -107
> [ 1512.854090] (mount.ocfs2,2179,0):ocfs2_mount_volume:1881 ERROR: status = -107
> [ 1512.855476] ocfs2: Unmounting device (253,16) on (node 0)
> [ 1512.855915] (mount.ocfs2,2179,0):ocfs2_fill_super:1230 ERROR: status = -107
> [ 1514.839138] o2net: No longer connected to node node1 (num 0) at
> 192.168.66.1:7777
> [ 1514.840690] BUG: unable to handle kernel NULL pointer dereference
> at 0000000000000028
> [ 1514.841627] IP: [<ffffffff816ce840>] kernel_sock_ioctl+0x50/0x50
> [ 1514.841627] PGD 1d980067 PUD 1db0c067 PMD 0
> [ 1514.841627] Oops: 0000 [#1] PREEMPT SMP
> [ 1514.841627] Modules linked in:
> [ 1514.841627] CPU 0
> [ 1514.841627] Pid: 6, comm: kworker/u:0 Not tainted 3.8.1+ #8 Bochs Bochs
> [ 1514.841627] RIP: 0010:[<ffffffff816ce840>] [<ffffffff816ce840>]
> kernel_sock_ioctl+0x50/0x50
> [ 1514.841627] RSP: 0018:ffff88001f949d40 EFLAGS: 00010292
> [ 1514.841627] RAX: ffff88001e6e9c01 RBX: ffff88001e6e9000 RCX: 0000000180080006
> [ 1514.841627] RDX: 0000000180080007 RSI: 0000000000000002 RDI: 0000000000000000
> [ 1514.841627] RBP: ffff88001f949dc8 R08: 0000000000016090 R09: 0000000000000001
> [ 1514.841627] R10: ffffea000079ba40 R11: ffffffff81321207 R12: ffff88001db69440
> [ 1514.841627] R13: ffffffff8204c760 R14: ffff88001db695a8 R15: ffff88001e6e9058
> [ 1514.841627] FS: 0000000000000000(0000) GS:ffff88001fc00000(0000)
> knlGS:0000000000000000
> [ 1514.841627] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 1514.841627] CR2: 0000000000000028 CR3: 000000001c009000 CR4: 00000000000006f0
> [ 1514.841627] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 1514.841627] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ 1514.841627] Process kworker/u:0 (pid: 6, threadinfo
> ffff88001f948000, task ffff88001f90a670)
> [ 1514.841627] Stack:
> [ 1514.841627] ffffffff81323776 ffff88001fad2e20 0000000000010500
> ffff88001f949d98
> [ 1514.841627] ffffffff810013fa ffff88001f949d78 ffffffff818a5c22
> ffff88001f949da8
> [ 1514.841627] ffffffff81069d26 0000000000012900 0000000000012900
> 0000000000000000
> [ 1514.841627] Call Trace:
> [ 1514.841627] [<ffffffff81323776>] ? o2net_shutdown_sc+0x106/0x1e0
> [ 1514.841627] [<ffffffff810013fa>] ? __switch_to+0x2a/0x4a0
> [ 1514.841627] [<ffffffff818a5c22>] ? _raw_spin_unlock_irq+0x12/0x40
> [ 1514.841627] [<ffffffff81069d26>] ? finish_task_switch+0x56/0xc0
> [ 1514.841627] [<ffffffff81056eb3>] process_one_work+0x133/0x510
> [ 1514.841627] [<ffffffff81323670>] ? o2net_sc_connect_completed+0xf0/0xf0
> [ 1514.841627] [<ffffffff810585ed>] worker_thread+0x15d/0x450
> [ 1514.841627] [<ffffffff81058490>] ? busy_worker_rebind_fn+0x100/0x100
> [ 1514.841627] [<ffffffff8105e10b>] kthread+0xbb/0xc0
> [ 1514.841627] [<ffffffff818a0000>] ? e1000_regdump+0x262/0x3be
> [ 1514.841627] [<ffffffff8105e050>] ? kthread_create_on_node+0x130/0x130
> [ 1514.841627] [<ffffffff818accac>] ret_from_fork+0x7c/0xb0
> [ 1514.841627] [<ffffffff8105e050>] ? kthread_create_on_node+0x130/0x130
> [ 1514.841627] Code: ff ff ff ff ff ff 48 8b 47 28 ff 50 48 4c 89 a3
> 48 e0 ff ff 48 8b 5d f0 4c 8b 65 f8 c9 c3 66 66 66 66 2e 0f 1f 84 00
> 00 00 00 00 <48> 8b 47 28 55 48 89 e5 ff 50 60 5d c3 0f 1f 00 55 41 b8
> 4b 43
> [ 1514.841627] RIP [<ffffffff816ce840>] kernel_sock_ioctl+0x50/0x50
> [ 1514.841627] RSP <ffff88001f949d40>
> [ 1514.841627] CR2: 0000000000000028
> [ 1514.867242] ---[ end trace 36ffe9378168cdc2 ]---
> [ 1514.867619] BUG: unable to handle kernel paging request at ffffffffffffffd8
> [ 1514.868007] IP: [<ffffffff8105e3cb>] kthread_data+0xb/0x20
> [ 1514.868007] PGD 1e0d067 PUD 1e0e067 PMD 0
> [ 1514.868007] Oops: 0000 [#2] PREEMPT SMP
> [ 1514.868007] Modules linked in:
> [ 1514.868007] CPU 0
> [ 1514.868007] Pid: 6, comm: kworker/u:0 Tainted: G D 3.8.1+
> #8 Bochs Bochs
> [ 1514.868007] RIP: 0010:[<ffffffff8105e3cb>] [<ffffffff8105e3cb>]
> kthread_data+0xb/0x20
> [ 1514.868007] RSP: 0018:ffff88001f949928 EFLAGS: 00010092
> [ 1514.868007] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000006
> [ 1514.868007] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88001f90a670
> [ 1514.868007] RBP: ffff88001f949928 R08: 0000000000000001 R09: 0000000000000196
> [ 1514.868007] R10: ffff88001f9116a0 R11: 0000000000000004 R12: ffff88001f90aa40
> [ 1514.868007] R13: 0000000000000000 R14: ffff88001f90a660 R15: ffff88001f90a670
> [ 1514.868007] FS: 0000000000000000(0000) GS:ffff88001fc00000(0000)
> knlGS:0000000000000000
> [ 1514.868007] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 1514.868007] CR2: ffffffffffffffd8 CR3: 000000001d83d000 CR4: 00000000000006f0
> [ 1514.868007] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 1514.868007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ 1514.868007] Process kworker/u:0 (pid: 6, threadinfo
> ffff88001f948000, task ffff88001f90a670)
> [ 1514.868007] Stack:
> [ 1514.868007] ffff88001f949948 ffffffff81059980 ffff88001f949948
> ffff88001fc12900
> [ 1514.868007] ffff88001f9499c8 ffffffff818a4c48 ffff88001f949978
> 0000000000000000
> [ 1514.868007] ffff88001f949fd8 ffff88001f90a670 ffff88001f949fd8
> ffff88001f949fd8
> [ 1514.868007] Call Trace:
> [ 1514.868007] [<ffffffff81059980>] wq_worker_sleeping+0x10/0xc0
> [ 1514.868007] [<ffffffff818a4c48>] __schedule+0x528/0x770
> [ 1514.868007] [<ffffffff818a4fa4>] schedule+0x24/0x70
> [ 1514.868007] [<ffffffff81040c72>] do_exit+0x702/0xad0
> [ 1514.868007] [<ffffffff818a7071>] oops_end+0x91/0xe0
> [ 1514.868007] [<ffffffff8189a00d>] no_context+0x24e/0x279
> [ 1514.868007] [<ffffffff817436f8>] ? tcp_rearm_rto+0xa8/0xd0
> [ 1514.868007] [<ffffffff8189a1ed>] __bad_area_nosemaphore+0x1b5/0x1d4
> [ 1514.868007] [<ffffffff8189a21a>] bad_area_nosemaphore+0xe/0x10
> [ 1514.868007] [<ffffffff818a90b6>] __do_page_fault+0x296/0x490
> [ 1514.868007] [<ffffffff816ce8ce>] ? sock_destroy_inode+0x2e/0x40
> [ 1514.868007] [<ffffffff8114e787>] ? destroy_inode+0x37/0x60
> [ 1514.868007] [<ffffffff8114e8ca>] ? evict+0x11a/0x1b0
> [ 1514.868007] [<ffffffff81321207>] ? sc_kref_release+0x77/0x160
> [ 1514.868007] [<ffffffff8112d421>] ? kfree+0x121/0x160
> [ 1514.868007] [<ffffffff81321207>] ? sc_kref_release+0x77/0x160
> [ 1514.868007] [<ffffffff818a92b9>] do_page_fault+0x9/0x10
> [ 1514.868007] [<ffffffff818a65e2>] page_fault+0x22/0x30
> [ 1514.868007] [<ffffffff81321207>] ? sc_kref_release+0x77/0x160
> [ 1514.868007] [<ffffffff816ce840>] ? kernel_sock_ioctl+0x50/0x50
> [ 1514.868007] [<ffffffff81323776>] ? o2net_shutdown_sc+0x106/0x1e0
> [ 1514.868007] [<ffffffff810013fa>] ? __switch_to+0x2a/0x4a0
> [ 1514.868007] [<ffffffff818a5c22>] ? _raw_spin_unlock_irq+0x12/0x40
> [ 1514.868007] [<ffffffff81069d26>] ? finish_task_switch+0x56/0xc0
> [ 1514.868007] [<ffffffff81056eb3>] process_one_work+0x133/0x510
> [ 1514.868007] [<ffffffff81323670>] ? o2net_sc_connect_completed+0xf0/0xf0
> [ 1514.868007] [<ffffffff810585ed>] worker_thread+0x15d/0x450
> [ 1514.868007] [<ffffffff81058490>] ? busy_worker_rebind_fn+0x100/0x100
> [ 1514.868007] [<ffffffff8105e10b>] kthread+0xbb/0xc0
> [ 1514.868007] [<ffffffff818a0000>] ? e1000_regdump+0x262/0x3be
> [ 1514.868007] [<ffffffff8105e050>] ? kthread_create_on_node+0x130/0x130
> [ 1514.868007] [<ffffffff818accac>] ret_from_fork+0x7c/0xb0
> [ 1514.868007] [<ffffffff8105e050>] ? kthread_create_on_node+0x130/0x130
> [ 1514.868007] Code: 00 48 89 e5 5d 48 8b 40 c8 48 c1 e8 02 83 e0 01
> c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 48 8b 87 78 03 00 00
> 55 48 89 e5 <48> 8b 40 d8 5d c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00
> 00 00
> [ 1514.868007] RIP [<ffffffff8105e3cb>] kthread_data+0xb/0x20
> [ 1514.868007] RSP <ffff88001f949928>
> [ 1514.868007] CR2: ffffffffffffffd8
> [ 1514.868007] ---[ end trace 36ffe9378168cdc3 ]---
> [ 1514.868007] Fixing recursive fault but reboot is needed!
>



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