oops on latest

oops on latest

[Kip Macy]

Happened when creating a domain that crashed early in boot.

kernel BUG at include/linux/dcache.h:293!
invalid operand: 0000 [#1]
PREEMPT SMP 
Modules linked in: video thermal processor fan button battery ac
CPU:    0
EIP:    0061:[<c01919fa>]    Not tainted VLI
EFLAGS: 00010246   (2.6.11.8-xen0) 
EIP is at sysfs_remove_dir+0x10a/0x120
eax: 00000000   ebx: d36cac20   ecx: dd7b1a40   edx: d36cac20
esi: dc6b6a40   edi: c96d6680   ebp: 00000006   esp: c1561e74
ds: 007b   es: 007b   ss: 0069
Process events/0 (pid: 6, threadinfo=c1560000 task=c06e8a40)
Stack: dbda7864 dd6d3ac0 dd84ac60 d36cac20 dc6b6a40 ddb19800 00000006 c020d634 
       d36cac20 00000002 d36cab80 c03f510a d36cac20 d36cab80 dc6b6a40 c03f60c1 
       dc6b6a40 ddb19800 c04e4460 ddb19800 00000006 00000000 c012ca1d c04e4460 
Call Trace:
 [<c020d634>] kobject_del+0x24/0x40
 [<c03f510a>] br_del_if+0x3a/0x5c
 [<c03f60c1>] br_device_event+0xe1/0x110
 [<c012ca1d>] notifier_call_chain+0x2d/0x50
 [<c03aa27f>] unregister_netdevice+0x13f/0x250
 [<c03aa3a8>] unregister_netdev+0x18/0x24
 [<c02b6b28>] netif_destroy+0x78/0x90
 [<c02b64cb>] netif_ctrlif_rx+0x4b/0x90
 [<c01055bc>] __ctrl_if_rxmsg_deferred+0x4c/0x60
 [<c012f7f9>] worker_thread+0x1b9/0x260
 [<c0105570>] __ctrl_if_rxmsg_deferred+0x0/0x60
 [<c011a7e0>] default_wake_function+0x0/0x20
 [<c011a7e0>] default_wake_function+0x0/0x20
 [<c012f640>] worker_thread+0x0/0x260
 [<c0133dea>] kthread+0xba/0xc0
 [<c0133d30>] kthread+0x0/0xc0
 [<c0107b95>] kernel_thread_helper+0x5/0x10
Code: 89 44 24 08 8b 00 89 04 24 e8 33 37 fb ff 8b 54 24 08 8b 42 04
89 04 24 e8 74 bd 07 00 8b 44 24 08 89 04 24 e8 18 37 fb f
f eb bc <0f> 0b 25 01 6f ec 42 c0 e9 09 ff ff ff 83 c4 0c 5b 5e 5f 5d c3 
 nfs warning: mount version older than kernel

Re: oops on latest

[Keir Fraser]

On 16 May 2005, at 01:39, Kip Macy wrote:

> Happened when creating a domain that crashed early in boot.
>
> kernel BUG at include/linux/dcache.h:293!
> invalid operand: 0000 [#1]

Does this happen every time or was it a one off? Looking through the 
code path nothing obvious is going wrong, except that the reference 
count is zero when it oughtn't to be.

  -- Keir

Re: oops on latest

[Kip Macy]

I couldn't trivially reproduce it. I'll file a bug if it happens again.



                      -Kip

On 5/16/05, Keir Fraser <Keir.Fraser@cl.cam.ac.uk> wrote:
> 
> On 16 May 2005, at 01:39, Kip Macy wrote:
> 
> > Happened when creating a domain that crashed early in boot.
> >
> > kernel BUG at include/linux/dcache.h:293!
> > invalid operand: 0000 [#1]
> 
> Does this happen every time or was it a one off? Looking through the
> code path nothing obvious is going wrong, except that the reference
> count is zero when it oughtn't to be.
> 
>   -- Keir
> 
>