[Xen-devel] Re: [Xen-users] pv_ops 2.6.31.6 restore/migration problem with 2.6.31.12 pv_ops domU

[Pasi Kärkkäinen <pasik@xxxxxx>]

Hello,

Forwarding to xen-devel ..

-- Pasi

On Fri, Jan 22, 2010 at 09:33:38AM +0100, Olivier B. wrote:
> For me restore/live migration doesn't work.
>
> For dom0 I use the version 2.6.31.6 00751-g600545, with vanilla  
> 2.6.31.12 pv_ops version on domU, and debian xen 3.4.2-2
>
> On restore I obtain that :
>
> [49532.764004] <4>------------[ cut here ]------------
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] <4>WARNING: at arch/x86/xen/time.c:180  
> xen_sched_clock+0x7c/0xaf()
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] <d>Modules linked in:
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  nf_conntrack_ipv4
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  nf_defrag_ipv4
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  xt_state
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  nf_conntrack
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  dm_snapshot
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [last unloaded: scsi_wait_scan]
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] Pid: 30422, comm: kstop/0 Tainted: G        W   
> 2.6.31.12-dae-xen #1
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] Call Trace:
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8104e0d1>] warn_slowpath_common+0x88/0xb6
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8104e121>] warn_slowpath_null+0x22/0x38
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8100dc4f>] xen_sched_clock+0x7c/0xaf
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8101829d>] sched_clock+0x9/0xd
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8106b73b>] sched_clock_cpu+0xa7/0x168
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff81047d4b>] update_rq_clock+0x26/0x48
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff81048c11>] try_to_wake_up+0xac/0x2af
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8101135d>] ? retint_restore_args+0x5/0x6
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff81048e34>] default_wake_function+0x20/0x36
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8103bcdd>] __wake_up_common+0x58/0xa2
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8106120e>] ? wq_barrier_func+0x0/0x36
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8103e07d>] complete+0x49/0x73
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8106122e>] wq_barrier_func+0x20/0x36
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff81060d8d>] worker_thread+0x156/0x20d
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8100dd1f>] ? xen_restore_fl_direct_end+0x0/0x1
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff81065b7f>] ? autoremove_wake_function+0x0/0x5a
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff81060c37>] ? worker_thread+0x0/0x20d
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff81065759>] kthread+0x9b/0xa3
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff810119ea>] child_rip+0xa/0x20
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff81010bac>] ? int_ret_from_sys_call+0x7/0x1b
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff8101135d>] ? retint_restore_args+0x5/0x6
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] BUG: recent printk recursion!
> [49532.764004]  [<ffffffff810119e0>] ? child_rip+0x0/0x20
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] <4>---[ end trace bbe4ba0e56e4a4ae ]---
> [49532.764004] BUG: recent printk recursion!
> [49532.764004] <4>------------[ cut here ]------------
>
>
> But except that, it works fine.
>
> Olivier
>
> Pasi Kärkkäinen a écrit :
>> On Thu, Jan 21, 2010 at 09:01:21PM -0000, Ian Tobin wrote:
>>   
>>>    Hi,
>>>
>>>
>>>
>>>    Quick question, is the 2.6.31.6 kernel in Jermeys tree stable enough for 
>>> a
>>>    live environment?  Ive been playing with it and seems to work quite well.
>>>
>>>     
>>
>> It works for many people.. so please keep using it, and report any 
>> issues/bugs found. 
>>
>> Also make sure you monitor the changelogs, it's still under development so 
>> you want to
>> upgrade every now and then to get the latest bits.
>>
>> xen/master branch changelog:
>> http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=shortlog;h=xen/master
>>
>> Whole git tree changelog:
>> http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git
>>
>> -- Pasi
>>
>>


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