[c-nsp] Strange GEIP+ Error on 7507

[Carlos Sean Kamtha]

Thought you might be interested in hearing an update.    


The card has since crashed once. We upgraded to RSP8 last night
but appears to have made no difference.

Jul 14 08:03:48.763 PDT: %VIP4-80 RM7000-3-MSG: slot4 VIP-3-PROCMEM_ECC_SINGLEBIT_ERROR: Processor memory ECC single-bit exception addr = 40038000 data = D8B00000


In fact, they seem more frequent than before. Of course, of it take traffic
completely off the router, I don't get any error messages. 

This is very strange..

On Sat, Jun 24, 2006 at 10:19:55PM -0700, Carlos Sean Kamtha wrote:
> On Sun, Jun 25, 2006 at 01:11:11AM -0400, Rodney Dunn wrote:
> > Ok..try it in another slot.
> > 
> > If you still see the probllem swap in a new RSP.
> 
> 
> thanks! 
> 
> > 
> > On Sat, Jun 24, 2006 at 08:57:11PM -0700, Carlos Sean Kamtha wrote:
> > > On Sat, Jun 24, 2006 at 11:53:16PM -0400, Rodney Dunn wrote:
> > > > Did you swap the memory between the two GEIP+'s or were they totally
> > > > unique boards?
> > > 
> > > unique. i also reseated the memory on both cards before inserting them. 
> > > 
> > > > 
> > > > If they were totally unique something else is causing the bit to flip in
> > > > processor memory of the GEIP+ (which is VIP4-80 based which is why you see
> > > > that in the log).
> > > 
> > > Right.
> > > 
> > > > 
> > > > I'd say it's pretty odd that you would get a bit to flip coming from the
> > > > RSP and it not be detected to/from the CyBus.
> > > > 
> > > > I'm hoping you reused the same memory. :)
> > > 
> > > i didnt. :(
> > > 
> > > > 
> > > > On Sat, Jun 24, 2006 at 08:44:23PM -0700, Carlos Sean Kamtha wrote:
> > > > > On Sat, Jun 24, 2006 at 11:37:40PM -0400, Rodney Dunn wrote:
> > > > > > Please post the error again and a couple from the syslog if you have them.
> > > > > > 
> > > > > 
> > > > > %VIP4-80 RM7000-3-MSG: slot6 VIP-3-PROCMEM_ECC_SINGLEBIT_ERROR: Processor memory ECC single-bit exception addr = 40038000 data = 00B00000
> > > > >  
> > > > > %VIP4-80 RM7000-3-MSG: slot6 VIP-3-PROCMEM_ECC_SINGLEBIT_ERROR: Processor memory ECC single-bit exception addr = 40038000 data = 37B00000
> > > > > 
> > > > > %VIP4-80 RM7000-3-MSG: slot6 VIP-3-PROCMEM_ECC_SINGLEBIT_ERROR: Processor memory ECC single-bit exception addr = 40038000 data = CCB00000
> > > > > 
> > > > > That's pretty much all i have. 
> > > > > 
> > > > > > If it says ECC it's almost NEVER a software problem.
> > > > > > 
> > > > > > It's a bit getting flipped somewhere and the ECC correction is detecting and
> > > > > > fixing it.
> > > > > 
> > > > > ah.
> > > > > 
> > > > > > 
> > > > > > If you have replaced the GEIP+ (which has ECC protection) I'd probably swap the
> > > > > > RSP and see if it goes away.
> > > > > 
> > > > > Ok. Would I not also see the same problem with the other GEIP+ I installed
> > > > > the same day?
> > > > > 
> > > > > > 
> > > > > > Rodney
> > > > > > 
> > > > > > On Sat, Jun 24, 2006 at 08:28:55PM -0700, Carlos Sean Kamtha wrote:
> > > > > > > On Sat, Jun 24, 2006 at 11:20:39PM -0400, Rodney Dunn wrote:
> > > > > > > > Post the message again.
> > > > > > > > 
> > > > > > > > Please please don't change code unless you have solid proof
> > > > > > > > it's a code problem.
> > > > > > > > 
> > > > > > > > I *thought* he said it was a single bit ECC problem that the
> > > > > > > > GEIP+ was detecting. If so it could be coming from anywhere in the
> > > > > > > > chassis.
> > > > > > > > 
> > > > > > > 
> > > > > > > Are you suggesting that it could be a chassis problem? Never
> > > > > > > had an issue with it until now. The chassis has been full
> > > > > > > with VIP2-50s for some time..
> > > > > > > 
> > > > > > > Carlos.
> > > > > > > 
> > > > > > > > > > -----END PGP SIGNATURE-----
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