Re: Xen paravirt frontend block hang

["Christopher S. Aker" <caker@theshore.net>]

Jeremy Fitzhardinge wrote:
> Hm.  xming reported similar symtoms to your report, which turned out to 
> be a result of problems with events getting lost.  This patch - which is 
> in 2.6.24 - resolved the issue.  Stock 2.6.24 still has this problem for 
> you?  Can you also reproduce it with lots of console output?

Looks like my tree has this changeset already (stock 2.6.24), so that's 
not it :/ ... I'll try flooding the console with output.

For what it's worth, it does it on both non-smp and smp compiled domU 
kernels.  smp kernels continue to function after triggering the hang, 
however one CPU gets stuck in iowait -- but I am able to continue to 
read from the xvd device.

Are you able to reproduce it with the shell script I provided?  It takes 
maybe 3 or 4 times through the loop to trigger.

-Chris