[j-nsp] FPC-Offline on M20 after Upgrade JunOS 8.5 to 9.3

[Pekka Savola]

On Sun, 8 Feb 2009, Thomas Czarnetzki wrote:
> we have here a strange problem.
> After Upgrade JunOS from 8.5 to 9.3 on our M20-Router the FPCs case errors 
> and go off-line.

Which kind of FPCs are these?

The very, very old FPC's (prior to E-FPC's) no longer work in 9.3, as 
stated in release notes.  This may or may not be related.

> Enclosed is an excerpt from the logfile (/var/log/messages):
> ----
> ssb CM(0): Slot 0: Unrecoverable error; probe failed
> ssb CM(0): Slot 0: No response from FPC interface manager
> ssb CM(0): Slot 0: No response from FPC chassis manager
> chassisd[4429]: CHASSISD_FRU_EVENT: scb_recv_slot_detach: detached FPC 0
> chassisd[4429]: CHASSISD_IFDEV_DETACH_FPC: ifdev_detach(0)
> ssb CM(0): Slot 0: Unrecoverable error; probe failed
> ssb CM(0): Slot 0: No response from FPC interface manager
> ssb CM(0): Slot 0: No response from FPC chassis manager
> craftd[4431]:  Major alarm set, Too many unrecoverable errors
> ssb CM(0): Slot 0: Unrecoverable error; probe failed
> ssb CM(0): Slot 0: Too many unrecoverable errors, going off-line
> ----
>
> Has anyone an idea what the reason might be?
>
> Regards,
> Thomas Czarnetzki
>
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-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings