2308401 - CPU usage continues to peek or stays at 100% - SAP ASE on HP Itanium

•  On HP Itanium, CPU usage continues to peek or stays at 100% as follows:

Cpu states:
CPU   LOAD   USER   NICE    SYS   IDLE  BLOCK  SWAIT   INTR   SSYS
 0    1.02  76.9%   0.0%  23.1%   0.0%   0.0%   0.0%   0.0%   0.0%
 1    0.50   0.2%   0.0%   0.2%  99.6%   0.0%   0.0%   0.0%   0.0%
---   ----  -----  -----  -----  -----  -----  -----  -----  -----
avg   0.76  38.4%   0.0%  11.7%  49.9%   0.0%   0.0%   0.0%   0.0%

System Page Size: 4Kbytes
Memory: 554124K (344936K) real, 1839928K (662484K) virtual, 3128888K free  Page# 1/10

CPU TTY    PID USERNAME PRI NI   SIZE    RES STATE    TIME %WCPU  %CPU COMMAND
 1 pts/1  4648 test10   152 20   318M 14728K run      2:30 100.44 100.26 dataserver
 0   ?      67 root     152 20  2592K  2304K run    473:13  0.54  0.54 vxfsd
 1   ?    1500 root     152 20   190M 10632K run     23:12  0.24  0.24 cimprovagt

• The pstack OS command prints a stack trace like below. The dbcc stacktrace command may also be able to print a similar stack trace.

 0: c000000000418050 : _sigsetstatemask() + 0x30
 1: c000000000425eb0 : setjmp() + 0x210
 2: 4000000005d0a8a0 : ktMuxThreadScheduleOut() + 0x80
 3: 4000000002455fc0 : kpsuspend() + 0x2a0
 4: 400000000245b740 : upyield() + 0x2c0
 5: 4000000001669260 : $cold_ksfreesocket() + 0x3f0
 6: 4000000002077fa0 : soc_nclose() + 0x2c0
 7: 4000000001ffd1f0 : drop_connection() + 0x110
 8: 400000000207b590 : kill_proc() + 0x5f0
 9: 4000000002050330 : terminate_process() + 0xbb0
10: 4000000001b40b70 : quitfn() + 0x130
11: 4000000002dc2f50 : site_quit() + 0x170
12: 4000000002dc2310 : site_hdlr() + 0x670
13: 4000000002bd9690 : kpstartproc() + 0xf0
14: 4000000002455c40 : stack_switch() + 0x80
15: c000000000425eb0 : setjmp() + 0x210

• SAP Adaptive Server Enterprise (ASE) 15.7
• SAP Adaptive Server Enterprise (ASE) 16.0
• HP Itanium

CR798089, CR#798089, 798089, sp_serveroption, remote_ASE, timeout, cis, rpc, handling, kernel, mode , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed