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New Member

Cat 8540 can't boot up

My catalyst 8540 not able to boot up. I was try this with only 1 Route Processor and 2 Switch Processor only. After the system run Switch Fabric Driver subsystem initializing ..., then the cat was keep come the this error message and it will not stop.

Nested r4k_return_to_monitor call (2 times)

-Traceback= 603AA468 603BCFFC 603BC548 603BCF70 603BFA0C 603C60A4 603EE0F8 600B4F44 600B45F8 6009B368 602CF378 6009ADD4 600B6708

Could not enable pif on msc: 0, port: 16

Currently is runnig IOS 120-13.W5.19.bin and

had try to load with different IOS 121-11b.E12 and 121-19.E2 but it does not help.

Below is the error message i had encounter,

%SYS-2-INSCHED: t_idle within scheduler

-Process= "*Sched*", ipl= 7

-Traceback= 602D56B8 6009944C 60099438

*** System received a Cache Parity Exception ***

signal= 0x14, code= 0xa434efda, context= 0x60f724b0

PC = 0x600b6988, Cause = 0x20, Status Reg = 0x34008002

AT: be840000, V0: 14, V1: a434efda

A0: 2b, A1: 14, A2: a434efda

A3: 60f724b0, T0: 0, T1: 0

T2: 0, T3: 0, T4: 60e7e5c0

T5: ff, T6: 60e74a00, T7: eef9a2

S0: 34008001, S1: 1, S2: 14

S3: a434efda, S4: 60f724b0, S5: 3084818

S6: 0, S7: 0, T8: bb3a

T9: 0, K0: 60f724b0, K1: 10

GP: 60f03060, SP: 60e74ac8, S8: 0

RA: 600a8828

STATUS: 34008002

mdlo_hi: 0, mdlo: 0

mdhi_hi: 0, mdhi: 5

bvaddr_hi: 0, bvaddr_lo: d0d0d

cause: 20, epc_hi: 0, epc:600b6988

err_epc_hi: 0, err_epc: 608aef80

TIGER Masked Interrupt Register = 0x0000007f

TIGER Interrupt Value Register = 0x00000020

Did your have facing this problem before ?

  • Other Network Infrastructure Subjects

Re: Cat 8540 can't boot up

A cache parity exception is going to be memory , try reseating the DRAM . if that fails replace the DRAM . If that fails open a tac case

New Member

Re: Cat 8540 can't boot up

I was try that and the RP was changed but still cant work. TAC CASE was open. Thanks for your reply.