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デバイスからの AFF A250 または FAS500F UMCE :  処理中アイドル: cpuxx

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環境

  • AFF A250
  • FAS500f

問題

  • 修正不能なマシンチェックエラーが原因で、 AFF A250 または FAS500f ノードがパニック状態になります。リブートおよびギブバック後も問題は発生しません。 
  • パニック・メッセージの例:

PANIC: Uncorrectable Machine Check Error at CPU11. SKL_IIO Error: STATUS<0xb380000000000e0b>(VALID,UC,EN,PCC,S,AR,CORR_ERR_STATUS(0),CORR_ERR_CNT(0),MSCOD(0),MCACOD(0xe0b))IIO Machine Check from device(s):.  in process idle: cpu11 on release 9.8P3 (C) on Tue Jun 00 00:00:00 MDT 2021

[node_name: idle: cpu11: sk.panic:alert]: Panic String: Uncorrectable Machine Check Error at CPU11. SKL_IIO Error: STATUS<0xb380000000000e0b>(VALID,UC,EN,PCC,S,AR,CORR_ERR_STATUS(0),CORR_ERR_CNT(0),MSCOD(0),MCACOD(0xe0b))IIO Machine Check from device(s):.  in process idle: cpu11 on release 9.8P1 (C)

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