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Re: [Freeipmi-devel] Inverted IPMI responses

From: Albert Chu
Subject: Re: [Freeipmi-devel] Inverted IPMI responses
Date: Thu, 31 Jan 2019 14:50:38 -0800

Hey Marc,

I think I see the problem(s).  I've added some tweaks, can you give the
branch "ipmb_network_reorder_race3" from github a shot.

For the ipmi-raw case, you should see a trace message just like last
time that says "reversed obj_cmd responses".  And for the new case,
where there is an error in the first response, you should see the trace
"accept out-of-order with bad completion code".

The ipmi debug packets will still be incorrect though.



On Thu, 2019-01-31 at 15:30 +0000, GIRARD, MARC wrote:
> Hi Albert,
> I am afraid your fix doesn't solve all cases.
> Maybe it is necessary to reconsider the existence of a race
> condition. I thing the problem is on the BMC side.
> I found two 'unusual' cases : one with ipmi-raw and another one with
> IntelNM and an invalid domain_id.
> See attachments for details
> I apologize for my English: I wish I could be more nuanced and more
> eloquent. I hope you understood me.
> Kind regards / Cordialement
> Marc Girard
> Power Efficiency team
> Atos
Albert Chu
Computer Scientist
High Performance Systems Division
Lawrence Livermore National Laboratory

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