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CHW-1355: ADR timeout event reported after L2 watchdog reset

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Issue

An AFF A300 or FAS8200 system reports an ADR timeout event after a L2 watchdog reset of the controller:

  • Seen on system serial console:

Mon Dec 27 16:21:57 2021 [nv2flash.ADR.timeout:ERROR]:ADR(Asynchronous DRAM self-refresh) failed at Mon Dec 27 16:19:48 2021
Mon Dec 27 16:21:57 2021 [nv2flash.restage.progress:NOTICE]: ReStage is not needed because the flash has no data.
  • Seen on system event log of SP:

Record 392: Mon Dec 27 16:21:57 2021 [IPMI.critical]: ADR event ID: 0 at time: 1614397319
Record 393: Mon Dec 27 16:21:57 2021 [IPMI.critical]: ADR Battery destage cycles: 19
{}Record 394: Mon Dec 27 16:22:01 2021 [IPMI Event.critical]: NMI{}{}Record 395: Mon Dec 27 16:22:03 2021 [IPMI Event.critical]: L2 watchdog timeout hard reset{}

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