[c-nsp] Linecard issue after upgrading Sup720 to 15.1(1)SY

[Simon Lockhart]

All,

Is anyone running 15.1(1)SY (or an earlier 15.x release) on a 6500/Sup720? I
tried to upgrade a box this morning from 12.2(33)SXJ3 to 15.1(1)SY, and all 
worked okay except one line card (a WS-X6748-SFP):

router#show mod 2 
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  2   24  CEF720 24 port 1000mb SFP              WS-X6724-SFP       SAD082xxxxx

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  2  000e.83xx.xxb8 to 000e.83xx.xxcf   2.1   Unknown      Unknown      Other

Mod  Sub-Module                  Model              Serial       Hw     Status 
---- --------------------------- ------------------ ----------- ------- -------
  2  Distributed Forwarding Card WS-F6700-DFC3B     SAL105xxxxx  4.5    Other

Mod  Online Diag Status 
---- -------------------
  2  Unknown

After a while, it logged:

Mar 23 07:16:51.876 UTC: %ONLINE-SP-6-REGN_TIMER: Module 2, Proc. 0. Failed to bring online because of registration timer eve  
sm(cygnus_oir_bay slot2), running yes, state wait_til_online
Last transition recorded: (power_on_ok)-> wait_til_online (reset_timer_online)-> wait_til_online (powered_off)-> shutdown_pc (pc_powered_off)-> powered_off (operator_power_on)-> can_power_on (yes_power)-> powered_on (real_power_on)-> check_power_on (timer)-> check_power_on (power_on_ok)-> wait_til_online (reset_timer_online)-> wait_til_online 
Mar 23 07:16:51.876 UTC: %C6KPWR-SP-4-DISABLED: power to module in slot 2 set off (Module  Failed SCP dnld)

Downgrading the Sup720 back to 12.2(33)SXJ3 caused the card to boot and run
fine again.

I can't seem to find anything about this in the release notes, or via google.
Given that it works fine on 12.2, I don't think it's failing hardware. Could
it be a hardware revision issue? (Other cards in this chassis are 2.4+)

Thanks in advance,

Simon