[j-nsp] Reboot on GE link change?

[Kevin Day]

Has anyone seen anything similar to this before?

I've got an M20 with a bunch of GE pics in it. Whenever the physical  
link goes down on any of those ports, the RE hangs. Example:


Jan  2 22:29:52  core1-chi craftd[2982]:  Minor alarm set, ge-1/0/0:  
Link down
Jan  2 22:29:52  core1-chi alarmd[2981]: Alarm set: ge-1/0/0  
color=YELLOW, class=ETHER, reason=ge-1/0/0: Link down
Jan  2 22:29:52  core1-chi craftd[2982]: forwarding display request  
to chassisd: type = 4, subtype = 43
Jan  2 22:29:52  core1-chi ssb CM(0): ALARM SET: (Minor) Slot 1:  
ge-1/0/0: Link down
Jan  2 22:38:48  core1-chi /kernel: Copyright (c) 1996-2001, Juniper  
Networks, Inc.
Jan  2 22:38:48  core1-chi syslogd: sendto: No route to host
Jan  2 22:38:48  core1-chi /kernel: All rights reserved.
Jan  2 22:38:48  core1-chi /kernel: Copyright (c) 1992-2004 The  
FreeBSD Project.
Jan  2 22:38:48  core1-chi /kernel: Copyright (c) 1979, 1980, 1983,  
1986, 1988, 1989, 1991, 1992, 1993, 1994
Jan  2 22:38:48  core1-chi /kernel: The Regents of the University of  
California. All rights reserved.
Jan  2 22:38:48  core1-chi /kernel: JUNOS 8.0R1.9 #0: 2006-08-11  
16:25:40 UTC

Jan  2 22:38:49  core1-chi savecore: Router crashed.....
Jan  2 22:38:49  core1-chi savecore: reboot after panic: Hardware  
watchdog timeout NMI
Jan  2 22:38:49  core1-chi savecore: system went down at Tue Jan  2  
22:31:01 2007
Jan  2 22:38:49  core1-chi savecore: Selective dump will be saved now


This has persisted through several JUNOS upgrades, swapping and  
rearranging the FPCs, PICs, SSBs, etc.

It doesn't matter if the BGP session goes down, or if I manually  
"disable" the PIC, or "request chassis pic offline" it, but if I  
physically pull the cable out the RE instantly hangs.


Relevant hardware:

Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                                  M20
Backplane        REV 09   710-001517                     M20 Backplane
Power Supply A   REV 06   740-001465                     AC Power Supply
Power Supply B   REV 08   740-001465                     AC Power Supply
Display          REV 04   710-001519                     M20 FPM Board
Routing Engine 0 REV 05   740-003877                     RE-2.0
Routing Engine 1 REV 08   740-003239                     RE-2.0
SSB slot 0       REV 02   710-001951                     Internet  
Processor IIv1
SSB slot 1       N/A      N/A          N/A               Backup
FPC 0            REV 03   710-003308                     E-FPC
   PIC 0          REV 03   750-002879                     1x G/E,  
1000 BASE-SX
   PIC 1          REV 04   750-003629                     1x G/E,  
1000 BASE-LH
   PIC 2          REV 01   750-001323                     1x Tunnel
   PIC 3          REV 04   750-003629                     1x G/E,  
1000 BASE-LH
FPC 1            REV 03   710-003308                     E-FPC
   PIC 0          REV 03   750-003628                     1x G/E,  
1000 BASE-LH
   PIC 1          REV 03   750-002879                     1x G/E,  
1000 BASE-SX
   PIC 2          REV 03   750-002879                     1x G/E,  
1000 BASE-SX
   PIC 3          REV 04   750-001894                     1x G/E,  
1000 BASE-SX
FPC 2            REV 01   710-001292                     FPC
   PIC 0          REV 05   750-002992                     4x F/E, 100  
BASE-TX
   PIC 1          REV 02   750-003037                     4x T1, RJ48
FPC 3            REV 01   710-001292                     FPC