SAP Knowledge Base Article - Preview

2758257 - Signal 11 raised by Run to completion thread iocRunController causes a stacktrace and server hang - ASE

Symptom

  • Port scanning on a server with SSL enabled may cause ASE to stacktrace and hang when the SSL port is scanned.  Stack shows a null function name at point of failure.

kernel  Current process (0x0) infected with signal 11 (SIGSEGV)
kernel  Current Process is running on a Non-Engine Thread
kernel  Address 0x0x00002ae2f651d4ba ((null)+0x2ae2f651d4ba), siginfo (code, address) = (1, 0x0x00002ae3a3ffffef)

<snip>

  • This part of the stacktrace shows in internal thread id of 10 for the iocRunController. As shown below the stacktrace does not end normally and stops ubcheck().

    00:0010:00000:00000:<date time info> kernel  Run to completion task iocRunController(46833470) exception 11
    00:0010:00000:00000:<date time info> kernel  pc: 0x00000000014a2dc1 nthrd_backtrace+0x3b()
    00:0010:00000:00000:<date time info> kernel  pc: 0x00000000014c779e krtctskException+0xc4()
    00:0010:00000:00000:<date time info> kernel  pc: 0x00000000014cf90f kisignal+0xa19()
    00:0010:00000:00000:<date time info> kernel  ubcheck: addr = 0x7ffffffe is not on the stack starting with address 0x2ae2fa266000 with size 0x200000.

 


Read more...

Environment

Adaptive Server Enterprise 16.0 SP03 PL06

Product

SAP Adaptive Server Enterprise 16.0

Keywords

KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.