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2289524 - Error 2 opening /proc/22505/lwp/71/lwpusage - SAP ASE

Symptom

  • While performing RPCs via CIS from ASE to IQ to store MDA monitoring data. Error 2 opening /proc/22505/lwp/71/lwpusage
  • The process could not be killed
  • Run to completion task 'CtlibController' exiting.  The RTC Task that died was the CtlibController.
  • During this process, the spid was hanging both on IQ and ASE side and were not responding to kill requests. 
  • The IQ server was killed.  This in turn resulted in ASE's CtlibController to get a signal 11.  Subsequent calls to monThread shows failure in accessing /proc/pid/lwp/thread/lwpusage.
  • It also received a signal 11

Current process (0x0) infected with signal 11 (SIGSEGV)
Run to completion task 0x0(0) exception 11
nthrd_backtrace
krtctskException
np_err_string
ct__api_fill_climsg
ct__error
ct__50cont_results
ct_async_exec_stack
ct_async_iopost
np__io_fillbuf_cb
sybnet__do_poll
sybnet__async_poll
thread_create_handler
Run to completion task 'CtlibController' exiting.


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Environment

  • SAP Adaptive Server Enterprise ( ASE ) 15.7.x
  • SAP IQ 16x

Product

SAP Adaptive Server Enterprise 15.7 ; SAP IQ 16.0

Keywords

CR794476, 794476, CR#794476, SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace,  stack, registers , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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