[Pkg-iscsi-maintainers] Bug#524305: open-iscsi: iSCSI device hangs on high load

[Ritesh Raj Sarraf]

A new version of iscsitarget (1.4.20) has been pushed to unstable. Per 
upstream, this version has many performance related fixes.

Could you try this version and report your results ?


Regards,
Ritesh

On Thursday 16 Apr 2009 11:49:33 Ritesh Raj Sarraf wrote:
> Hi John,
> 
> On Thursday 16 Apr 2009 11:20:18 John Lepikhin wrote:
> > tid:1 lun:0 by sid:844424967684608 (Function Complete) Apr 15 05:07:50 c1
> > kernel: [1127304.719482] iscsi_trgt: cmnd_abort(1148) 3b000020 1 0 0 0 0
> > 0 Apr 15 05:07:50 c1 kernel: [1127304.719482] iscsi_trgt: Abort Task
> > (01) issued on tid:1 lun:0 by sid:844424967684608 (Function Complete)
> > Apr 15 05:07:50 c1 kernel: [1127304.723482]  connection2:0: detected
> > conn error (1011) Apr 15 05:09:34 c1 kernel: [1127440.726777] INFO: task
> > pdflush:194 blocked for more than 120 seconds. Apr 15 05:09:34 c1
> > kernel:
> > [1127440.730770] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> > disables this message. Apr 15 05:09:34 c1 kernel: [1127440.730770]
> > pdflush
> > 
> >      D 00000000     0   194      2 ...
> 
> This doesn't look to be an initiator side problem.
> Looks like there is an Abort Task from the target.
> That then  leads to Connection Termination. (I wonder why it is not re-
> establishing)
> 
> And the hang is obvious because of the above things happening.
> 
> Ritesh

-- 
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."
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