Re: ESX FC host connectivity issues

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On Wed, Mar 16, 2016 at 10:47 AM, Dan Lane <dracodan@xxxxxxxxx> wrote:
> On Tue, Mar 15, 2016 at 3:49 PM, Dan Lane <dracodan@xxxxxxxxx> wrote:
>> On Tue, Mar 15, 2016 at 3:45 PM, Dan Lane <dracodan@xxxxxxxxx> wrote:
>>> I went to pull the latest source and I noticed mainline Kernel 4.5 was
>>> released yesterday.  Did all the recent patches that apply to fiber
>>> channel make it into this release or do I still need to patch?
>>>
>>> Thanks
>>> Dan
>>>
>>> On Fri, Mar 11, 2016 at 11:07 PM, Nicholas A. Bellinger
>>> <nab@xxxxxxxxxxxxxxx> wrote:
>>>> On Fri, 2016-03-11 at 18:15 -0500, Dan Lane wrote:
>>>>> I'm back in town now and ready to try this again.  Should I still try
>>>>> this patch?
>>>>
>>>> Yes, you still need to apply the patch to drop the extra bogus
>>>> target_put_sess_cmd() call, when !__target_check_io_state() for
>>>> ABORT_TASK occurs:
>>>>
>>>> https://git.kernel.org/cgit/linux/kernel/git/nab/target-pending.git/commit/?id=7f54ab5ff52fb0b91569bc69c4a6bc5cac1b768d
>>>>
>>>>> I noticed you had submitted a patch a few days ago, so
>>>>> can I just pull all the latest updates from your git repo?
>>>>>
>>>>
>>>> The PULL request just went out to Linus, and will be included for
>>>> v4.5 release.
>>>>
>>>> It's also CC'ed for stable, and will make it's way down to v3.14.y
>>>> stable over the next weeks.
>>>>
>>
>> Whoops, sorry about the top post...  I know you said the request was
>> sent to Linus, I just wanted to confirm that it made it since the time
>> frame between that last email and when 4.5 was released was so short.
>>
>> Thanks again
>
> Latest update:
> With the 4.5 (final) kernel my storage was more stable than ever, but
> again went inaccessible after about 15 hours.  This is despite very
> heavy usage last night, the likes of which caused failures in the past
> (but I was amazed with the performance, I was able to get 650MB/s
> writes and 750MB/s reads!!!).  The aborts seem to be coming in as
> steady as they have in the past, which leads me to believe the patch
> for the extra "bogus target_put_sess_cmd() call" didn't make it in
> time for the 4.5 release.  If it did, this means there are more
> problems.
>
> Here is a snippet from my messages log before ESXi gave up:
> Mar 16 07:21:57 dracofiler kernel: ABORT_TASK: Sending
> TMR_TASK_DOES_NOT_EXIST for ref_tag: 1169660
> Mar 16 07:21:57 dracofiler kernel: ABORT_TASK: Found referenced
> qla2xxx task_tag: 1169616
> Mar 16 07:21:57 dracofiler kernel: ABORT_TASK: Sending
> TMR_TASK_DOES_NOT_EXIST for ref_tag: 1169616
> Mar 16 07:23:20 dracofiler kernel: ABORT_TASK: Found referenced
> qla2xxx task_tag: 1147132
> Mar 16 07:23:20 dracofiler kernel: ABORT_TASK: Sending
> TMR_TASK_DOES_NOT_EXIST for ref_tag: 1147132
> Mar 16 07:23:20 dracofiler kernel: ABORT_TASK: Found referenced
> qla2xxx task_tag: 1147176
> Mar 16 07:23:24 dracofiler kernel: ABORT_TASK: Sending
> TMR_FUNCTION_COMPLETE for ref_tag: 1147176
> Mar 16 07:23:24 dracofiler kernel: ABORT_TASK: Found referenced
> qla2xxx task_tag: 1186556
>
> Also, I configured my hosts to send their logs to a syslog server, I
> have an appointment to go to but I'll pull those and send them to you
> this afternoon.
>
> Thanks
> Dan

I discovered the ATS heartbeat issue was still causing issues.  I have
created a host profile and applied it to all of my hosts to ensure it
doesn't come up again.  For now there's no reason to dig further with
this, I will report back whether or not I'm still having the issue in
the next few days (or sooner if it still fails).

Thanks,
Dan
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