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NetApp Stage KB

7500N ATTO bridge reboots unexpectedly:WARN SWWD 4827

Last Updated:


Applies to

  • ATTO FibreBridge 7500N v3.20
  • MetroCluster FC
  • ATTO bridge managed via in-band and secured


  • ATTO FibreBridge 7500N reboots unexpectedly
  • dumpeventlog all shows the following reboot signature:
163FD5 01:57:18 05/13/22 WARN SWWD 4827
163FD6 01:57:18 05/13/22 INFO SWWD Exception
163FDD 01:57:18 05/13/22 INFO FP out of range [6c4d60]
163FDE 01:57:18 05/13/22 INFO ST[1f3d8000-1f3e0000] | FP[1f3dff74] CPSR[20000113]
163FDF 01:57:18 05/13/22 INFO 00e344c4<-00e1bad8 | SP[1f3dff78] FP[1f3dffcc]
163FE0 01:57:18 05/13/22 INFO 00e1b784<-0008537c | SP[1f3dffd0] FP[1f3dfffc]
163FE1 01:57:18 05/13/22 INFO 000851ac<-003ea210 | SP[1f3e0000] FP[1f3e0000]
163FE2 01:57:18 05/13/22 INFO Exception occurred. Possible redundant preceding log entries
163FE3 00:00:05 01/01/00 INFO Reset.  HW Code: Software Warm
163FE4 00:00:05 01/01/00 INFO Reset.  Reason: Watchdog Timer Interrupt Exception
163FE5 01:59:10 05/13/22 SYS  System date has changed. Current date:[05/13/2022]
163FE6 01:59:10 05/13/22 INFO Boot/reset occurred (001U)

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