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<small><small><big>I have seen a couple of times that when SYSTEM CPU
is running very high, the node receives a panic.<br>
<br>
I would think this is not working as designed, Is there a way to
prevent this?<br>
<br>
</big><br>
<big>Oct 25 16:32:45 n8 kernel: [1554039.835464] general protection
fault: 0000 [1] SMP <br>
Oct 25 16:32:45 n8 kernel: [1554039.835509] CPU 3 <br>
Oct 25 16:32:45 n8 kernel: [1554039.835536] Modules linked in: nfs
lockd nfs_acl sunrpc ocfs2 crc32c libcrc32c ipmi_devintf ipmi_si
ipmi_msghandler ocfs2_dlmfs ocfs2_dlm ocfs<br>
2_nodemanager configfs iptable_filter ip_tables x_tables xfs ipv6
ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp
libiscsi scsi_transport_iscsi parport_pc <br>
lp parport loop serio_raw psmouse i2c_piix4 button i2c_core k8temp
dcdbas shpchp pci_hotplug pcspkr evdev ext3 jbd mbcache sg sr_mod cdrom
sd_mod ata_generic usbhid hid pata_<br>
acpi pata_serverworks sata_svw tg3 libata ehci_hcd ohci_hcd scsi_mod
usbcore thermal processor fan fbcon tileblit font bitblit softcursor
fuse<br>
Oct 25 16:32:45 n8 kernel: [1554039.835947] Pid: 4925, comm: o2net
Tainted: G M 2.6.24-24-server #1<br>
Oct 25 16:32:45 n8 kernel: [1554039.835982] RIP:
0010:[<ffffffff88472a7e>] [<ffffffff88472a7e>]
:ocfs2:ocfs2_get_dentry_osb+0xe/0x20<br>
Oct 25 16:32:45 n8 kernel: [1554039.836060] RSP: 0000:ffff810414811ca8
EFLAGS: 00010282<br>
Oct 25 16:32:45 n8 kernel: [1554039.836093] RAX: 0000940513688ddd RBX:
ffff8103db805018 RCX: 0000000000000005<br>
Oct 25 16:32:45 n8 kernel: [1554039.836145] RDX: ffff81036c912980 RSI:
0000000000000005 RDI: ffff8103db805018<br>
Oct 25 16:32:45 n8 kernel: [1554039.836197] RBP: ffff8103db805200 R08:
ffff8103db805200 R09: ffff8103e7ae9200<br>
Oct 25 16:32:45 n8 kernel: [1554039.836250] R10: 000000000000004e R11:
ffffffff8847a580 R12: 080000000005364d<br>
Oct 25 16:32:45 n8 kernel: [1554039.836302] R13: 0000000000000005 R14:
0000000000000000 R15: 000000000000001f<br>
Oct 25 16:32:45 n8 kernel: [1554039.836355] FS: 00002b9aaa791ff0(0000)
GS:ffff810416d25c80(0000) knlGS:00000000f54d2b90<br>
Oct 25 16:32:45 n8 kernel: [1554039.836409] CS: 0010 DS: 0018 ES: 0018
CR0: 000000008005003b<br>
Oct 25 16:32:45 n8 kernel: [1554039.836442] CR2: 00002b9aab037000 CR3:
0000000215df3000 CR4: 00000000000006e0<br>
Oct 25 16:32:45 n8 kernel: [1554039.836494] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000<br>
Oct 25 16:32:45 n8 kernel: [1554039.836546] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400<br>
Oct 25 16:32:45 n8 kernel: [1554039.836599] Process o2net (pid: 4925,
threadinfo ffff810414810000, task ffff8104145ae7f0)<br>
Oct 25 16:32:45 n8 kernel: [1554039.836653] Stack: ffffffff8847a5a6
ffff810413c53000 0000000046c107d6 ffff8102f2437028<br>
Oct 25 16:32:45 n8 kernel: [1554039.836716] 0000000000000000
ffff8103db805200 080000000005364d ffff8102f2437018<br>
Oct 25 16:32:45 n8 kernel: [1554039.836777] 0000000000000000
000000000000001f ffffffff8840aef4 000000000000012c<br>
Oct 25 16:32:45 n8 kernel: [1554039.836818] Call Trace:<br>
Oct 25 16:32:45 n8 kernel: [1554039.836874] [<ffffffff8847a5a6>]
:ocfs2:ocfs2_blocking_ast+0x26/0x310<br>
Oct 25 16:32:45 n8 kernel: [1554039.836924]
[ocfs2_dlm:dlm_proxy_ast_handler+0x824/0x830]
:ocfs2_dlm:dlm_proxy_ast_handler+0x824/0x830<br>
Oct 25 16:32:45 n8 kernel: [1554039.836988]
[ocfs2_nodemanager:do_gettimeofday+0x2f/0x2fb90]
do_gettimeofday+0x2f/0xc0<br>
Oct 25 16:32:45 n8 kernel: [1554039.837035]
[ocfs2_nodemanager:o2net_process_message+0x4cc/0x5b0]
:ocfs2_nodemanager:o2net_process_message+0x4cc/0x5b0<br>
Oct 25 16:32:45 n8 kernel: [1554039.837096]
[__dequeue_entity+0x3d/0x50] __dequeue_entity+0x3d/0x50<br>
Oct 25 16:32:45 n8 kernel: [1554039.837137]
[ocfs2_nodemanager:o2net_recv_tcp_msg+0x65/0x80]
:ocfs2_nodemanager:o2net_recv_tcp_msg+0x65/0x80<br>
Oct 25 16:32:45 n8 kernel: [1554039.839042]
[ocfs2_nodemanager:o2net_rx_until_empty+0x38b/0x900]
:ocfs2_nodemanager:o2net_rx_until_empty+0x38b/0x900<br>
Oct 25 16:32:45 n8 kernel: [1554039.839106]
[ocfs2_nodemanager:o2net_rx_until_empty+0x0/0x900]
:ocfs2_nodemanager:o2net_rx_until_empty+0x0/0x900<br>
Oct 25 16:32:45 n8 kernel: [1554039.839165] [run_workqueue+0xcc/0x170]
run_workqueue+0xcc/0x170<br>
Oct 25 16:32:45 n8 kernel: [1554039.839198] [worker_thread+0x0/0x110]
worker_thread+0x0/0x110<br>
Oct 25 16:32:45 n8 kernel: [1554039.839232] [worker_thread+0x0/0x110]
worker_thread+0x0/0x110<br>
Oct 25 16:32:45 n8 kernel: [1554039.839266] [worker_thread+0xa3/0x110]
worker_thread+0xa3/0x110<br>
Oct 25 16:32:45 n8 kernel: [1554039.839300] [<ffffffff80254510>]
autoremove_wake_function+0x0/0x30<br>
Oct 25 16:32:45 n8 kernel: [1554039.839336] [worker_thread+0x0/0x110]
worker_thread+0x0/0x110<br>
Oct 25 16:32:45 n8 kernel: [1554039.839370] [worker_thread+0x0/0x110]
worker_thread+0x0/0x110<br>
Oct 25 16:32:45 n8 kernel: [1554039.839403] [kthread+0x4b/0x80]
kthread+0x4b/0x80<br>
Oct 25 16:32:45 n8 kernel: [1554039.839438] [child_rip+0xa/0x12]
child_rip+0xa/0x12<br>
Oct 25 16:32:45 n8 kernel: [1554039.839476]
[lapic_next_event+0x0/0x10] lapic_next_event+0x0/0x10<br>
Oct 25 16:32:45 n8 kernel: [1554039.839512] [kthread+0x0/0x80]
kthread+0x0/0x80<br>
Oct 25 16:32:45 n8 kernel: [1554039.839543] [child_rip+0x0/0x12]
child_rip+0x0/0x12<br>
Oct 25 16:32:45 n8 kernel: [1554039.839575] <br>
Oct 25 16:32:45 n8 kernel: [1554039.839598] <br>
Oct 25 16:32:45 n8 kernel: [1554039.839599] Code: 48 8b 80 58 02 00 00
c3 66 2e 0f 1f 84 00 00 00 00 00 8b 47 <br>
Oct 25 16:32:45 n8 kernel: [1554039.839716] RIP
[<ffffffff88472a7e>] :ocfs2:ocfs2_get_dentry_osb+0xe/0x20<br>
Oct 25 16:32:45 n8 kernel: [1554039.839761] RSP
<ffff810414811ca8><br>
Oct 25 16:32:45 n8 kernel: [1554039.840184] ---[ end trace
7b4f7c37a3752d22 ]---<br>
Oct 25 16:33:14 n8 kernel: [1554069.382728] o2net: connection to node
n3 (num 3) at 172.16.16.203:7777 has been idle for 30.0 seconds,
shutting it down.</big></small></small><big><br>
</big><br>
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