单台S6800交换机
设备运行过程中出现异常重启,设备发生异常重启,重启原因为WatchDog
1.
Description 描述字段有received pcie exception error 子样
display kernel exception 10 verbose slot 1 ===============
--------------------- Exception record 1 ---------------------
Description : cpu_0 received a pcie exception error
Recorded at : 2022-03-21 01:22:27.620672
Occurred at : 2022-03-21 01:22:27.620672
Instruction address : 0xffffffffc0ee073c
Thread : swapper (TID: 0)
Context : irq context
Slot : 1
Cpu : 0
VCPU ID : 0
2.
Register content:
Reg: zero, Val = 0x0000000000000000 ; Reg: at, Val = 0x0000100000000000 ;
Reg: v0, Val = 0x9000000010031400 ; Reg: v1, Val = 0x0000000000031400 ;
Reg: a0, Val = 0xffffffffc77b9208 ; Reg: a1, Val = 0x0000000000031400 ;
Reg: a2, Val = 0xffffffffc0ee0000 ; Reg: a3, Val = 0x000000000000002c ;
Reg: t0, Val = 0x00000000000000a0 ; Reg: t1, Val = 0x0000000000000001 ;
Reg: t2, Val = 0xffffffff806d99d0 ; Reg: t3, Val = 0x0000000000005678 ;
Reg: t4, Val = 0x0000000000031400 ; Reg: t5, Val = 0x0000000000000000 ;
Reg: t6, Val = 0x0000000000000000 ; Reg: t7, Val = 0xc000000002420000 ;
Reg: s0, Val = 0x0000000000000000 ; Reg: s1, Val = 0x0000000000031400 ;
因此确认该问题为版本已知问题PCIE 抖动
问题现象:极低概率设备运行过程中异常重启。
问题产生条件:pcie链路抖动或信号不稳定
该问题在R2612P02版本H30 有优化,建议升级到R2612P02H30
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