2138908 - Stack traces with signal11 on module s__merge_finish - ASE

The "merge into" command we get the following stack traces:

Address 0x0x00000000011323cf (s__merge_finish+0x17b), siginfo (code, address) = (1, 0x(nil))
**** Saved signal context (0x0x00000001443f4680): ****
uc_flags: 0x0, uc_link: 0x(nil)
uc_sigmask: 0x416000 0xb 0x1 0x0
uc_stack: ss_sp: 0x(nil), ss_size: 0x0, ss_flags: 0x2
General Registers (uc_mcontext.gregs):
PC : 0x00000000011323cf (s__merge_finish+0x17b)
RAX : 0x00000001485e7bc0  RBX : 0x00000001485e7bc0
RCX : 0x0000000000000276  RDX : 0x000000000000006e
RBP : 0x00000001443f4b10  RSP : 0x00000001443f4ae0
R8  : 0x0000000000000077  R9  : 0x0101010101010101
R10 : (nil)  R11 : 0x0000000145b2fb40
R12 : (nil)  R13 : 0x00000001485e1358
R14 : (nil)  R15 : 0x0000000000000010
RDI : 0x00000001485e7c2d  RSI : 0x0000000001b9a1e6
RIP : 0x00000000011323cf  CSGSFS : 0x0000000000000033
TRAPNO : 0x000000000000000e  ERR : 0x0000000000000004
EFL : 0x0000000000010246
**** end of signal context ****
************************************
SQL causing error :  <SQL>
************************************
00:0002:00000:00012:2015/03/04 10:11:54.16 server  SQL Text: <sql text>
curdb = 2 tempdb = 2 pstat = 0x10000 p2stat = 0x101000
p3stat = 0x800 p4stat = 0x0 p5stat = 0x8 p6stat = 0x11 p7stat = 0x10000
lasterror = 209 preverror = 0 transtate = 1
curcmd = 0 program =
extended error information: hostname:  login:
pc: 0x00000000014e941b pcstkwalk+0x3a3()
pc: 0x00000000014e8ef3 ucstkgentrace+0x263()
pc: 0x00000000014e4e5e ucbacktrace+0x50()
pc: 0x0000000000773054 terminate_process+0xa14()
pc: 0x00000000015385b8 kisignal+0x31f()
pc: 0x00000000011323cf s__merge_finish+0x17b()
pc: 0x000000000112955f s_preprocess+0x80f()
pc: 0x00000000010ee8c6 s_compile+0x486()
pc: 0x0000000001145881 sequencer+0x2f1()
pc: 0x00000000007b4bec tdsrecv_language+0x21c()
pc: 0x00000000007d50f0 conn_hdlr+0x10c0()
end of stack trace, spid 12, kpid 1638413, suid 1

SAP Adaptive Server Enterprise (ASE) 15.7 EBF 22870

KBA , temporary table , union all , sarg , virtual columns , materialized , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed