Unexpected issues with 2 NVME initiators using the same target

[Sagi Grimberg]

> Testing this patch I didn't see these new messages even when rebooting
> the targets multiple times. It also resolved some performance problems
> I was seeing (I think our switches are having bugs with IPv6 and
> routing) and I was receiving expected performance. At one point in the
> test, one target (4.9.33) showed:
> [Tue Jun 20 10:11:20 2017] iSCSI Login timeout on Network Portal [::]:3260
> [Tue Jun 20 10:11:39 2017] iSCSI Login timeout on Network Portal [::]:3260
> [Tue Jun 20 10:11:58 2017] isert: isert_print_wc: login send failure:
> transport retry counter exceeded (12) vend_err 81

I don't understand, is this new with the patch applied?

> After this and a reboot of the target, the initiator would drop the
> connection after 1.5-2 minutes then faster and faster until it was
> every 5 seconds. It is almost like it set up the connection then lose
> the first ping, or the ping wasn't set-up right. I tried rebooting the
> target multiple times.

So the initiator could not recover even after the target as available
again?