[Scst-devel] [ofa-general] WinOF_2_0_5/SRP initiator: slow reads and eventually hangs

[Chris Worley]

On Wed, Sep 2, 2009 at 12:05 PM, Bart Van
Assche<bart.vanassche at gmail.com> wrote:
> On Wed, Sep 2, 2009 at 7:27 PM, Chris Worley <worleys at gmail.com> wrote:
>>
>> Then, the majority of messages were the pair:
>>
>> Sep  2 17:12:22 nameme kernel: [408676.552666] [0]: scst:
>> __scst_init_cmd:3361:Too many pending commands (50) in session,
>> returning BUSY to initiator "0x0002c903000260470002c90300026047"
>> Sep  2 17:12:22 nameme kernel: [408676.552670] [0]: scst:
>> scst_set_busy:366:Sending QUEUE_FULL status to initiator
>> 0x0002c903000260470002c90300026047 (cmds count 79, queue_type 1,
>> sess->init_phase 3)
>>
>> # grep -e "returning BUSY to initiator" /var/log/messages | wc -l
>> 221834
>> # grep -e "Sending QUEUE_FULL status to initiator" /var/log/messages | wc -l
>> 167948
>>
>> Maybe the initiator has stopped due to its "busy" tracking... deciding
>> the target cannot continue?
>>
>> Is the queue settable to larger than 50 outstanding commands?
>
> Definitely. The details are explained in the document srpt/README.

This is looking god so far; I've set it to 256, and am not seeing any
queue-full messages.  This may be the work-around.

Thanks,

Chris
>
> Bart.
>