Re: [Xen-users] xen vif bug

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

Hi Tony,

What version of Xen / XenLinux are you using?  Where did you get it from?

Cheers,
Mark

On Thursday 07 June 2007, Tony Hoyle wrote:
> Hi,
>
> Is this the best place to report a bug?
>
> I accidentally wrote the following in a config file:
>
> vif         = [ 'mac==aa:00:f4:77:74:1e' ]
>
> The == caused the network driver to oops!  Some sanity check missing
> somewhere..
>
> I've confirmed that removing the == and using the exact same
> configuration otherwise does not cause the bugcheck.
>
> kernel BUG at net/core/dev.c:3326!
> invalid opcode: 0000 [1] SMP
> CPU 0
> Modules linked in:
> Pid: 9, comm: xenwatch Not tainted 2.6.20-1-xen-amd64 #1
> RIP: e030:[<ffffffff8039d4cf>]  [<ffffffff8039d4cf>]
> unregister_netdevice+0x68/0x214
> RSP: e02b:ffff88000009fe20  EFLAGS: 00010206
> RAX: 0000000000000003 RBX: ffff8800001a0000 RCX: 0000000000000000
> RDX: 0000000000000000 RSI: ffffffff8045ab0e RDI: ffffffff804c5980
> RBP: ffffffff80369d86 R08: 000000000000000a R09: 0000000000000005
> R10: ffff88000009a410 R11: ffffffff8036b43c R12: ffff880000015d20
> R13: ffff880000015d68 R14: ffffffff8028e3d8 R15: ffff8800001a0000
> FS:  0000000000000000(0000) GS:ffffffff804d8000(0000)
> knlGS:0000000000000000 CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
> CR2: 0000000000000000 CR3: 0000000000201000 CR4: 0000000000002620
> Process xenwatch (pid: 9, threadinfo ffff88000009e000, task
> ffff88000009a850)
> Stack:  ffffffff8028e3d8 ffff8800001a0000 ffffffff80369d86 ffffffff8039d68c
>   0000000000000005 ffffffff8036bc74 ffff88000009d400 ffff8800001a0500
>   ffff880004443ac0 ffff88000009d400 ffffffff804be868 ffff880000015d68
> Call Trace:
>   [<ffffffff8028e3d8>] keventd_create_kthread+0x0/0x65
>   [<ffffffff80369d86>] xenwatch_thread+0x0/0x145
>   [<ffffffff8039d68c>] unregister_netdev+0x11/0x17
>   [<ffffffff8036bc74>] backend_changed+0x838/0x86d
>   [<ffffffff8028e3d8>] keventd_create_kthread+0x0/0x65
>   [<ffffffff80368462>] xenbus_read_driver_state+0x26/0x36
>   [<ffffffff80369d86>] xenwatch_thread+0x0/0x145
>   [<ffffffff8028e3d8>] keventd_create_kthread+0x0/0x65
>   [<ffffffff803691a6>] xenwatch_handle_callback+0x15/0x48
>   [<ffffffff80369eb3>] xenwatch_thread+0x12d/0x145
>   [<ffffffff8028e570>] autoremove_wake_function+0x0/0x2e
>   [<ffffffff80369d86>] xenwatch_thread+0x0/0x145
>   [<ffffffff80232abd>] kthread+0xd1/0x100
>   [<ffffffff8025af68>] child_rip+0xa/0x12
>   [<ffffffff8028e3d8>] keventd_create_kthread+0x0/0x65
>   [<ffffffff802329ec>] kthread+0x0/0x100
>   [<ffffffff8025af5e>] child_rip+0x0/0x12
>
>
> Code: 0f 0b eb fe f6 83 90 00 00 00 01 74 08 48 89 df e8 11 ff ff
> RIP  [<ffffffff8039d4cf>] unregister_netdevice+0x68/0x214
>   RSP <ffff88000009fe20>
>   <4>XENBUS: Timeout connecting to device: device/vif/0 (state 5)
>
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> http://lists.xensource.com/xen-users



-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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