[DRBD-user] Kernel Panic

Lars Ellenberg lars.ellenberg at linbit.com
Mon Jan 26 16:49:10 CET 2009

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Mon, Jan 26, 2009 at 03:12:02PM +0000, Igor Neves wrote:
> Hi,
> 
> I'm having hard problems with one machine with drbd, ans having this
> kernel panic's

these are NOT kernel panics...
even though the may look very similar.

> on the machine I run the vmware server.

thanks for mentioning this.

> Does anyone know what this can be?
>
> I'm using drbd 8.0.13 on kernel 2.6.18-92.1.22.el5PAE, this is a Centos
> 5.2 machine.

Not a DRBD problem.
Appears to be a problem in the redhat kernel on vmware.
please have a look at
https://bugzilla.redhat.com/show_bug.cgi?id=463573

> Thanks
> 
>  =======================
> BUG: soft lockup - CPU#0 stuck for 10s! [swapper:0]
> 
> Pid: 0, comm:              swapper
> EIP: 0060:[<c0608e1b>] CPU: 0
> EIP is at _spin_lock_irqsave+0x13/0x27
>  EFLAGS: 00000286    Tainted: GF      (2.6.18-92.1.22.el5PAE #1)
> EAX: f79c4028 EBX: f79c4000 ECX: c072afdc EDX: 00000246
> ESI: f7c4ac00 EDI: f7c4ac00 EBP: 00000000 DS: 007b ES: 007b
> CR0: 8005003b CR2: 9fb19000 CR3: 00724000 CR4: 000006f0
>  [<f887f8d1>] scsi_device_unbusy+0xf/0x69 [scsi_mod]
>  [<f887b356>] scsi_finish_command+0x10/0x77 [scsi_mod]
>  [<c04d8a34>] blk_done_softirq+0x4d/0x58
>  [<c042ab5a>] __do_softirq+0x5a/0xbb
>  [<c0407451>] do_softirq+0x52/0x9d
>  [<c04073f6>] do_IRQ+0xa5/0xae
>  [<c040592e>] common_interrupt+0x1a/0x20
>  [<c0403ccf>] mwait_idle+0x25/0x38
>  [<c0403c90>] cpu_idle+0x9f/0xb9
>  [<c06eb9ee>] start_kernel+0x379/0x380
>  =======================
> BUG: soft lockup - CPU#1 stuck for 10s! [drbd0_receiver:4880]
> 
> Pid: 4880, comm:       drbd0_receiver
> EIP: 0060:[<c0608e1b>] CPU: 1
> EIP is at _spin_lock_irqsave+0x13/0x27
>  EFLAGS: 00000286    Tainted: GF      (2.6.18-92.1.22.el5PAE #1)
> EAX: f79c4028 EBX: ca5ff6c0 ECX: f7c4ac00 EDX: 00000202
> ESI: f79c4000 EDI: f7c4ac94 EBP: 00000001 DS: 007b ES: 007b
> CR0: 8005003b CR2: 7ff72000 CR3: 00724000 CR4: 000006f0
>  [<f887edef>] scsi_run_queue+0xcd/0x189 [scsi_mod]
>  [<f887f46e>] scsi_next_command+0x25/0x2f [scsi_mod]
>  [<f887f583>] scsi_end_request+0x9f/0xa9 [scsi_mod]
>  [<f887f6cd>] scsi_io_completion+0x140/0x2ea [scsi_mod]
>  [<f885a3d2>] sd_rw_intr+0x1f1/0x21b [sd_mod]
>  [<f887b3b9>] scsi_finish_command+0x73/0x77 [scsi_mod]
>  [<c04d8a34>] blk_done_softirq+0x4d/0x58
>  [<c042ab5a>] __do_softirq+0x5a/0xbb
>  [<c0407451>] do_softirq+0x52/0x9d
>  [<c042a961>] local_bh_enable+0x74/0x7f
>  [<c05d1407>] tcp_prequeue_process+0x5a/0x66
>  [<c05d3692>] tcp_recvmsg+0x416/0x9f7
>  [<c05a725e>] sock_common_recvmsg+0x2f/0x45
>  [<c05a5017>] sock_recvmsg+0xe5/0x100
>  [<c0436347>] autoremove_wake_function+0x0/0x2d
>  [<c05a6c97>] kernel_sendmsg+0x27/0x35
>  [<f8d87718>] drbd_send+0x77/0x13f [drbd]
>  [<f8d78485>] drbd_recv+0x57/0xd7 [drbd]
>  [<f8d78485>] drbd_recv+0x57/0xd7 [drbd]
>  [<f8d78694>] drbd_recv_header+0x10/0x94 [drbd]
>  [<f8d78c4b>] drbdd+0x18/0x12b [drbd]
>  [<f8d7b586>] drbdd_init+0xa0/0x173 [drbd]
>  [<f8d89e47>] drbd_thread_setup+0xbb/0x150 [drbd]
>  [<f8d89d8c>] drbd_thread_setup+0x0/0x150 [drbd]
>  [<c0405c3b>] kernel_thread_helper+0x7/0x10

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
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