Re: AER: Malformed TLP recovery deadlock with NVMe drives

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On 2018-05-08 00:57, Alex_Gagniuc@xxxxxxxxxxxx wrote:
On 5/7/2018 5:46 PM, okaya@xxxxxxxxxxxxxx wrote:
[snip]
If it were easy, somebody would have patched it by now ;)

Can you file a bugzilla CC me, keith and bjorn and attach all of your
logs?

Sure. Which bugzilla?


https://bugzilla.kernel.org

Drivers -> pci



Let's debug this there.


Bugzilla is more organized for keeping track of which log is for what.

My experience is that bugzilla is preferred unless Keith or Bjorn has a different opinion.

Debugging over email not fun enough?

Alex


With this patch, you shouldn't
see link down and up interrupts during reset but i do see them in the
log.

You will see the messages from the link up/down events regardless if
any
action is actually taken.

Can you also share a fail case log with this patch and a diff of your
hacks so that we know where prints are coming from.

Of course. Example of failing case [3], and is identical to the fail
log
without any patches. Although prints have the function name, the diff
is
in [4].

Alex

[3] http://gtech.myftp.org/~mrnuke/nvme_logs/log-20180507-1509.log
[4] http://gtech.myftp.org/~mrnuke/nvme_logs/print_hacks.patch


[2] http://gtech.myftp.org/~mrnuke/nvme_logs/log-20180507-1429.log
[1] http://gtech.myftp.org/~mrnuke/nvme_logs/log-20180507-1308.log




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