On Thu, 6 Apr 2017 14:27:01 +0100, Nick Fisk wrote:
...
> > I'm not to sure what you're referring to WRT the spiral of death, but we did
> > patch some LIO issues encountered when a command was aborted while
> > outstanding at the LIO backstore layer.
> > These specific fixes are carried in the mainline kernel, and can be tested
> > using the AbortTaskSimpleAsync libiscsi test.
>
> Awesome, glad this has finally been fixed. Death spiral was referring to when using it with ESXi, both the initiator and target effectively hang forever and if you didn't catch it soon enough, sometimes you end up having to kill all vm's and reboot hosts.
Sounds like it could be the same thing. Stale iSCSI sessions remain
around which block subsequent login attempts.
> Do you know what kernel version these changes would have first gone into? I thought I looked back into this last summer and it was still showing the same behavior.
The fix I was referring to is:
commit 5e2c956b8aa24d4f33ff7afef92d409eed164746
Author: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Date: Wed May 25 12:25:04 2016 -0700
target: Fix missing complete during ABORT_TASK + CMD_T_FABRIC_STOP
It's carried in v4.8+ and was also flagged for 3.14+ stable inclusion,
so should be present in many distro kernels by now. That said, there
have been many other changes in this area.
Cheers, David
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