[Xen-devel] Re: Issue with 2.6.37 DomU kernel

[Anirban Sinha <ani@xxxxxxxxxxx>]

And oh, I am running a 2.6.32.27 Dom0 kernel from Jeremy's repo.

Ani


On Wed, Feb 2, 2011 at 3:02 PM, Anirban Sinha <ani@xxxxxxxxxxx> wrote:
> Hi :
>
> I have compiled a custom DomU kernel and tried booting with it. I run
> into a xenwatch issue :
>
> Initialising Xen virtual ethernet driver.
> BUG: sleeping function called from invalid context at kernel/mutex.c:278
> in_atomic(): 1, irqs_disabled(): 0, pid: 11, name: xenwatch
> 2 locks held by xenwatch/11:
>  #0:  (xenwatch_mutex){+.+...}, at: [<ffffffff8121ed19>]
> xenwatch_thread+0xbf/0x152
>  #1:  (irq_mapping_update_lock){+.+.+.}, at: [<ffffffff8121c2c1>]
> bind_evtchn_to_irq+0x21/0xbd
> Pid: 11, comm: xenwatch Not tainted 2.6.37 #3
> Call Trace:
>  [<ffffffff8103e3c9>] __might_sleep+0x112/0x117
>  [<ffffffff81394f82>] mutex_lock_nested+0x25/0x3e
>  [<ffffffff81384719>] irq_alloc_descs+0x3d/0x185
>  [<ffffffff8121c271>] find_unbound_irq+0x70/0x9f
>  [<ffffffff8121c2d9>] bind_evtchn_to_irq+0x39/0xbd
>  [<ffffffff8121ddc9>] ? HYPERVISOR_event_channel_op+0x1a/0x4b
>  [<ffffffff8121c382>] bind_evtchn_to_irqhandler+0x25/0x5f
>  [<ffffffffa0001264>] ? xennet_interrupt+0x0/0x79 [xen_netfront]
>  [<ffffffffa0000e83>] netback_changed+0x363/0x744 [xen_netfront]
>  [<ffffffff812204c1>] otherend_changed+0x103/0x112
>  [<ffffffff81399dac>] ? sub_preempt_count+0x97/0xaa
>  [<ffffffff8121ed71>] xenwatch_thread+0x117/0x152
>  [<ffffffff81067e84>] ? autoremove_wake_function+0x0/0x39
>  [<ffffffff8121ec5a>] ? xenwatch_thread+0x0/0x152
>  [<ffffffff810678ed>] kthread+0xa0/0xa8
>  [<ffffffff81079552>] ? trace_hardirqs_on_caller+0x10b/0x12f
>  [<ffffffff8100bca4>] kernel_thread_helper+0x4/0x10
>  [<ffffffff81397054>] ? restore_args+0x0/0x30
>  [<ffffffff8100bca0>] ? kernel_thread_helper+0x0/0x10
> blkfront: xvda: barriers enabled
>  xvda: unknown partition table
> blkid used greatest stack depth: 5104 bytes left
> blkid used greatest stack depth: 4608 bytes left
>
>
> I am copying my kernel config. Can you guys throw some light on this?
>
> Thanks,
> Ani
>

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