[warm-reboot] warm-reboot from 201811 to 202012 fails on s6100 at SDK initialization

[tjchadaga]

Description

Warm-reboot from 201811 to 202012 is failing with broadcom SDK initilization failure

Steps to reproduce the issue:

1. Load 201811 image
2. Set next image as 202012
3. Perform warm-reboot -f

Describe the results you received:

Warm-reboot fails with orchagent crash during INIT_VIEW and the following errors are observed in the log:

Nov 10 22:15:31.577603 str-s6100-acs-1 ERR syncd#syncd: [none] SAI_API_SWITCH:platform_process_command:443 Platform command "init bcm" failed, rc = -1.
Nov 10 22:15:31.577745 str-s6100-acs-1 CRIT syncd#syncd: [none] SAI_API_SWITCH:platformInit:1976 initialization command "init bcm" failed, rc = -1 (Internal error).
Nov 10 22:15:31.577745 str-s6100-acs-1 CRIT syncd#syncd: [none] SAI_API_SWITCH:sai_driver_init:447 Error initializing driver, rc = -1.
Nov 10 22:15:31.577912 str-s6100-acs-1 CRIT syncd#syncd: [none] SAI_API_SWITCH:brcm_sai_create_switch:1016 initializing SDK failed with error Operation failed (0xfffffff5).
Nov 10 22:15:31.578022 str-s6100-acs-1 NOTICE syncd#syncd: :- performWarmRestartSingleSwitch: Warm boot: create switch VID: oid:0x21000000000000 took 4.475329 sec
Nov 10 22:15:31.578144 str-s6100-acs-1 ERR syncd#syncd: :- performWarmRestartSingleSwitch: failed to create switch RID: SAI_STATUS_FAILURE for VID oid:0x21000000000000

Describe the results you expected:

No crash seen and warm-reboot should complete

Output of show platform:

show platform  summary 
Platform: x86_64-dell_s6100_c2538-r0
HwSKU: Force10-S6100
ASIC: broadcom
ASIC Count: 1

Output of show techsupport:

Additional information you deem important (e.g. issue happens only occasionally):