Re: [Xen-devel] some errors of pvonhvm : xen-blkfront

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Wed, Apr 13, 2011 at 10:46:10AM +0800, topperxin wrote:
> hi all,
>       I have just ported the pvovhvm drivers to ubuntu 10.10 ,the domU can 
> boot successfully, but when the domU running,  intermittenceï the system will 
> give me such warnings:
>       INFO: task login:1073 blocked for more than 120 seconds.
>       "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this 
> message.
>       INFO: task flush-202:0:457 blocked for more than 120seconds.
>       "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this 
> message.
>       INFO: task jbd2/sda1-8:422 blocked for more than 120 seconds.
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>       
>       what's wrong with the domU? is it means there are some errors in
> xen-blkfront? how should I debug this error???

Enable the verbose output (DPRINTK) and see what the data stream has. What 
kernel
version is 10.10? 


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