[Ocfs2-users] invalid opcode bug in dlmglue?

[Brian Kroth]

We've gotten a couple of dumps likes this in the last couple of days
while migrating some new users to our mail store which involves
untarring/moving large quantities of files.  We've gracefully rebooted
the node after every instance and it seems to do fine with normal mail
operations.  I'm wondering if you have any thoughts on the messages?

Running in ESX 3.5.
The kernel is Debian 2.6.30 based.
Storage backend is iSCSI EqualLogic.
Only one node currently has the FS mounted.

Thanks,
Brian

Feb  4 09:34:41 iris kernel: [528465.151651]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Feb  4 09:34:41 iris kernel: [528465.151722] Process rm (pid: 32114, ti=dfad4000 task=e17b9610 task.ti=dfad4000)
Feb  4 09:34:41 iris kernel: [528465.147544] ------------[ cut here ]------------
Feb  4 09:34:41 iris kernel: [528465.148706] kernel BUG at fs/ocfs2/dlmglue.c:2470!
Feb  4 09:34:41 iris kernel: [528465.148818] invalid opcode: 0000 [#1] SMP 
Feb  4 09:34:41 iris kernel: [528465.148983] last sysfs file: /sys/devices/system/clocksource/clocksource0/available_clocksource
Feb  4 09:34:41 iris kernel: [528465.149113] Modules linked in: ocfs2 jbd2 quota_tree ocfs2_stack_o2cb ocfs2_stackglue netconsole vmsync vmmemctl ocfs2_dlmfs ocfs2_dlm ocfs2_nodemanager configfs usbhid hid uhci_hcd ohci_hcd eh
ci_hcd usbcore psmouse evdev serio_raw parport_pc parport snd_pcsp snd_pcm snd_timer snd soundcore snd_page_alloc container button ac i2c_piix4 processor i2c_core intel_agp shpchp agpgart pci_hotplug ext3 jbd mbcache dm_mirror dm_region_ha
sh dm_log dm_snapshot dm_mod sd_mod crc_t10dif ide_cd_mod cdrom ata_generic libata ide_pci_generic floppy mptspi mptscsih mptbase scsi_transport_spi scsi_mod vmxnet piix ide_core thermal fan thermal_sys [last unloaded: scsi_wait_scan]
Feb  4 09:34:41 iris kernel: [528465.150763] 
Feb  4 09:34:41 iris kernel: [528465.150945] Pid: 32114, comm: rm Not tainted (2.6.30-vmwareguest-smp-64g.20090711 #1) VMware Virtual Platform
Feb  4 09:34:41 iris kernel: [528465.151104] EIP: 0060:[<f887783d>] EFLAGS: 00010246 CPU: 2
Feb  4 09:34:41 iris kernel: [528465.151446] EIP is at ocfs2_dentry_lock+0x26/0xf7 [ocfs2]
Feb  4 09:34:41 iris kernel: [528465.151520] EAX: f6548800 EBX: c8c53c6c ECX: 00000000 EDX: 00000000
Feb  4 09:34:41 iris kernel: [528465.151586] ESI: 17395beb EDI: f6538000 EBP: 00000005 ESP: dfad5e88
Feb  4 09:34:41 iris kernel: [528465.151651]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Feb  4 09:34:41 iris kernel: [528465.151722] Process rm (pid: 32114, ti=dfad4000 task=e17b9610 task.ti=dfad4000)
Feb  4 09:34:41 iris kernel: [528465.151814] Stack:
Feb  4 09:34:41 iris kernel: [528465.151886]  00000001 00000000 c75fe8dc c8c53c6c 17395beb 00000000 c8c53c6c f888fdcc
Feb  4 09:34:41 iris kernel: [528465.152084]  00000000 17395beb f88925c9 f6538000 f0987900 c75fe940 c75fe5c0 00000000
Feb  4 09:34:41 iris kernel: [528465.152303]  00000000 00000000 00000000 00000000 00000000 00000000 00000000 e6472e10
Feb  4 09:34:41 iris kernel: [528465.152566] Call Trace:
Feb  4 09:34:41 iris kernel: [528465.152580]  [<f888fdcc>] ? ocfs2_remote_dentry_delete+0xe/0x95 [ocfs2]
Feb  4 09:34:41 iris kernel: [528465.152872]  [<f88925c9>] ? ocfs2_unlink+0x3fe/0xa26 [ocfs2]
Feb  4 09:34:41 iris kernel: [528465.152960]  [<c019ab62>] ? vfs_unlink+0x5c/0x95
Feb  4 09:34:41 iris kernel: [528465.153165]  [<c019be31>] ? do_unlinkat+0x93/0xfc
Feb  4 09:34:41 iris kernel: [528465.153240]  [<c0114001>] ? smp_reschedule_interrupt+0x13/0x1c
Feb  4 09:34:41 iris kernel: [528465.153336]  [<c0107eda>] ? reschedule_interrupt+0x2a/0x30
Feb  4 09:34:41 iris kernel: [528465.153413]  [<c01077d4>] ? sysenter_do_call+0x12/0x28
Feb  4 09:34:41 iris kernel: [528465.153538] Code: e9 19 fe ff ff 55 57 56 53 83 ec 0c 83 fa 01 8b 50 58 19 ed 83 e5 fe 83 c5 05 89 54 24 04 8b 40 54 85 d2 8b b8 98 01 00 00 75 04 <0f> 0b eb fe 8d 9f 9c 00 00 00 89 d8 e8 2a 1e ab c7 8b 87 a4 00 
Feb  4 09:34:41 iris kernel: [528465.154876] EIP: [<f887783d>] ocfs2_dentry_lock+0x26/0xf7 [ocfs2] SS:ESP 0068:dfad5e88
Feb  4 09:34:41 iris kernel: [528465.155307] ---[ end trace 62c828cac153c25f ]---
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