2592073 - Signal 11 in lock related function crashing ASE due to fglockspins spinlock - SAP ASE

• ASE errorlog reports infected with signal 11 at address showing a lock related function
• Some known functions reported at address line are : lock__ins_logical, lock_do_logical, lock__set_sleepingowner_list
• Below an example of typical elements of this stack trace
• See attachment KBA_2592073_Stack.txt for a full example of a stack trace

Current process (0x13bf01db) infected with signal 11 (SIGSEGV)
Address <hex#> (lock__ins_logical+0xf20)

• The spid is holding spinlock fglockspins and as a result ASE crashes:

Spinlocks held by kpid 12345678
Spinlock fglockspins at address c0000007020c6400 owned by 12345678

• The stack trace contains some or all of the following functions:

lock__ins_logical
lock_do_logical
fg_lock
bt__lock

• SAP Adaptive Server Enterprise (ASE) 16.0 SP02
• SAP Adaptive Server Enterprise for Business Suite 16.0 SP02

lock__ins_logical , lock_do_logical , fg_lock , fgunlock , lock_firstsema_checkrlock , lock__unlink , lock_release , lock__set_sleepingowner_list , lock__check_deadlock , lock__perform_deadlock_search , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , Bug Filed