Hi,
From the issue it looks that the kernel is not able to get the abap program name.(As per the dump ab_genprog is causing the issue)
Hope all the kernel file are there with correct permission.
Just checked that changes have be delivered in the below patches.
SAPKH60604 SAP_APPL 606: SP 0004 SAP 24.11.2012 Delivery Transport Released
SAPK-604DFINSAPAPPL SAP_APPL 604 Upgrade: Function groups SAPAPPLUSER 24.11.2012 Delivery Transport Released
SAPK-605DFINSAPAPPL SAP_APPL 605 Upgrade: Function groups SAPAPPLUSER 24.11.2012 Delivery Transport Released
SAPK-606BFINSAPAPPL SAP_APPL 606 Update: Function groups SAP 24.11.2012 Delivery Transport Release started
Have you completed all the SPAU and spdd?
Were there any errors during the upgrade.
Thanks
Rishi Abrol