Re: LIO target stop responding on 3.18-rc3

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On Mon, 2014-11-10 at 14:09 +0100, Turbo Fredriksson wrote:
> Anyone?
> 

Is this still an issue..?

What does the target side kernel ring buffer dmesg output look like..?  

There where a few minor iscsi-target cleanups that went in for
v3.18-rc1, but AFAICT none of those small changes look like they would
introduce this particular type regression..
  
One thing useful for debugging is building the target kernel with
CONFIG_DYNAMIC_DEBUG=y, thus allowing pr_debug() statements to be
enabled/disabled on-the-fly in kernel ring buffer output (dmesg).

This can be turned on for all iscsi_target_mod.ko using debugfs via:

   echo 'module iscsi_target_mod +p' > /debug/dynamic_debug/control

A wireshark packet dump is also useful to see which network packets are
actually being exchanged between initiator + target hosts when the issue
occurs.

Thanks for reporting!

--nab

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