[Ocfs2-users] linux kernel [4.7.6]

[Gerhard Mack]

Hello,

I had a server reboot on me and I'm at a loss as to what caused this 
crash.  Please keep in mind this server is mission critical and my 
options for testing are rather limited.

Anyone have any ideas?
     Gerhard


Oct 25 15:38:38 172.28.23.18 kernel: [  180.900950] o2net: Connected to 
node monmailcl01 (num 1) at 10.45.0.11:7777
Oct 25 15:38:39 172.28.23.18 kernel: [  181.455469] o2dlm: Node 1 joins 
domain 85372A5B9E7C4C2C95F1E9922D5A83AF ( 1 2 ) 2 nodes
Oct 25 15:38:40 172.28.23.18 kernel: [  182.972901] o2dlm: Node 1 joins 
domain 490180441A5248339D36ECD96514427C ( 1 2 ) 2 nodes
Oct 25 15:40:04 172.28.23.18 kernel: [  266.410379] ------------[ cut 
here ]------------
Oct 25 15:40:04 172.28.23.18 kernel: [  266.410452] kernel BUG at 
fs/ocfs2/dlmglue.c:780!
Oct 25 15:40:04 172.28.23.18 kernel: [  266.410515] invalid opcode: 0000 
[#1] SMP
Oct 25 15:40:04 172.28.23.18 kernel: [  266.410576] Modules linked in: 
xt_multiport iptable_filter ocfs2 quota_tree xt_tcpudp iptable_mangle 
xt_mark
ip_tables x_tables ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm 
ocfs2_nodemanager ocfs2_stackglue ib_iser rdma_cm iw_cm ib_cm ib_core 
configfs iscsi_tcp
libiscsi_tcp libiscsi scsi_transport_iscsi bonding ext4 crc16 jbd2 
mbcache coretemp kvm_intel kvm snd_pcm irqbypass snd_timer snd soundcore 
pcspkr
iTCO_wdt iTCO_vendor_support dcdbas evdev shpchp serio_raw i2c_i801 
i2c_core acpi_cpufreq lpc_ich mfd_core tpm_tis tpm i5100_edac button 
edac_core
processor loop autofs4 xfs crc32c_generic libcrc32c raid1 md_mod sg 
sd_mod hid_generic usbhid hid ahci libahci libata e1000e scsi_mod 
uhci_hcd ehci_pci
ehci_hcd usbcore ptp psmouse pps_core usb_common r8169 mii
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] CPU: 3 PID: 3563 
Comm: imap Not tainted 4.7.6 #8
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] Hardware name: 
Dell      CS24-SC               /CS24-SC               , BIOS S45_3A20 
01/21/2009
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] task: 
ffff8800bb35cd00 ti: ffff8800bb2d8000 task.ti: ffff8800bb2d8000
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] RIP: 
0010:[<ffffffffa0535365>]  [<ffffffffa0535365>] 
__ocfs2_cluster_unlock.isra.34+0x4a/0x92 [ocfs2]
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] RSP: 
0018:ffff8800bb2dbbe0  EFLAGS: 00010046
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] RAX: 
0000000000000246 RBX: ffff8800bbbd7a18 RCX: 000000000005a25c
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] RDX: 
0000000000000000 RSI: ffff8800bbbd7a18 RDI: ffff8800bbbd7a84
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] RBP: 
ffff8800bbbd7a84 R08: ffff8800bb2d8000 R09: 0000000000000001
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] R10: 
ffff8800bb2dbbd8 R11: 000000000000000b R12: ffff88041782b000
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] R13: 
0000000000000246 R14: 0000000000000003 R15: 0000000000000003
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] FS: 
00007fe9a96c2700(0000) GS:ffff88043fcc0000(0000) knlGS:0000000000000000
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] CS:  0010 DS: 0000 
ES: 0000 CR0: 0000000080050033
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] CR2: 
000056169b47e000 CR3: 00000000bb112000 CR4: 00000000000406e0
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] Stack:
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] ffff88042d757c00 
0000000000000000 ffff88042a0e1b40 ffff8800ba8194d8
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] 0000000000000000 
ffffffffa0528ce0 ffff88042a0e1b78 ffff8800ba8194d8
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] 0000000000000000 
ffff88042a0e1b40 ffff88042a0e1b40 ffff8800ba8194d8
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] Call Trace:
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffffa0528ce0>] 
? ocfs2_dentry_attach_lock+0x2c2/0x3f2 [ocfs2]
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffffa0548a8d>] 
? ocfs2_lookup+0x17c/0x268 [ocfs2]
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff81140925>] 
? lookup_slow+0xcf/0x104
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff811422fa>] 
? walk_component+0x69/0x12b
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff81142890>] 
? path_lookupat+0x7d/0xfe
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff81143f8c>] 
? filename_lookup+0x78/0xf5
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff8112a9f9>] 
? kmem_cache_alloc+0x99/0x124
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff8113c544>] 
? vfs_fstatat+0x46/0x83
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff8113c544>] 
? vfs_fstatat+0x46/0x83
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff8113c5ca>] 
? SYSC_newstat+0x10/0x27
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] [<ffffffff813f831b>] 
? entry_SYSCALL_64_fastpath+0x13/0x8f
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] Code: db 75 02 0f 0b 
41 83 fe 03 49 89 c5 74 16 41 83 fe 05
75 20 8b 53 5c 85 d2 75 02 0f 0b ff ca 89 53 5c eb 12 8b 53 58 85 d2 75 
02 <0f> 0b ff ca 89 53 58 eb 02 0f 0b f6 43 30 04 74 24 8a 43 62 3c
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] RIP 
[<ffffffffa0535365>] __ocfs2_cluster_unlock.isra.34+0x4a/0x92 [ocfs2]
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339]  RSP <ffff8800bb2dbbe0>
Oct 25 15:40:04 172.28.23.18 kernel: [  266.414339] ---[ end trace 
4eaf20faca7a8f81 ]---


The server hard rebooted after this..

-- 
Gerhard Mack | Convergia Networks System Administrator
Office phone: +1 514 693-6300 x5697
237 Hymus Blvd, Pointe-Claire, QC, Canada H9R 5C7
Email: gerhard.mack at convergia.net
Web site: www.convergia.com