R700 100% cpu /usr/bin/matrix after upgrade from 9.12.1.0 build 140 to 9.12.2.0 build 204

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After upgrade from 9.12.1.0 build 140 to 9.12.2.0 build 204, 10 of our 39 R700 have 100% CPU utilization for at lease 20 minutes after the upgrade.
If we reboot the R700 the CPU is still 100% CPU (0 clients has been connected).

In the support file we noticed that the /usr/bin/matrix process was responsible for that.  

We opened a case for that 00414781 a P2.

After one hour after the upgrade we decided to downgrade to version ZD3000 9.12.2.0.101, this version has the same behaviour.

Does someone have this same behaviour with this software version ?

Do you have details about the processes /usr/bin/matrix 
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Arthur Hulsman

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Posted 1 year ago

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Dave Watkins

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Yup, I've had a case open for this for R600's for a while now. I've been told a fix has already been developed and will be available shortly, but I'm trying to get it backported to a custom firmware I'm already running to fix another issue. The timeframe for this fix to be released I was told was 9.13 - sometime in June.

Initially (I've had this going on for a while now) I didn't have any client connectivity issues related to this, but they have started cropping up now and then now
(Edited)
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Arthur Hulsman

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Herewith the Engineering Reference Number:ER-3716,SCG-48499
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Michael Brado, Official Rep

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Fix has been checked into DevEng code, and will be incorporated in next 9.12.2 refresh (target May 6), 
and SmartZone 3.4 releases.
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Bart Oudhuis

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Hi Michael, can you give us some insight on the fix release? Would be great to know if we can expect a release within a week.
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Dave Watkins

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If you have a ticket open you should be able to get it now. I've had it running here for a few days without issue so it looks to be resolved