Re: on-off periodic hangs in scsi commands

2011-01-06 Thread Vladislav Bolkhovitin
Spelic, on 01/05/2011 09:56 PM wrote: I am cc-ing the open-iscsi and scst people to see if they can suggest a way to debug the iscsi one. In particular it would be very interesting to get the number of commands received and replied from target side, and match it to the number of commands

on-off periodic hangs in scsi commands

2011-01-05 Thread Spelic
Hello I am on kernel 2.6.36.2 (but I think I saw this problem also long time ago on 2.6.31) I am having problems of greatly reduced throughput to scsi devices Commands run for about 0.3 seconds and then are hanged for about 1.7 seconds. Then run again for 0.3 seconds then are hanged again