Symptom
- Client connection unexpectedly terminated
- ASE errorlog contains an infected with 11 error at address mbkt_do_alloc
Current process (0x4ffd0136) infected with signal 11 (SIGSEGV)
Address 0x0x0000000002216727 (mbkt_do_alloc+0x927) ... - with a stack trace that includes the following functions:
mbkt_do_alloc
ubfallocf
varpkt_alloc_with_retry
usincpktsz
login_varpktsz - Subsequently ASE reports many more of this signal 11 or, more commonly, many instances of a timeslice, with its own stacktrace
timeslice -1501, current process infected at 0x2249cb7 (pausenonatomic+0x9)
timeslice error: spid 12345 exhausted its 'time slice' of 100 milliseconds and additional 'cpu grace time' of 1500 ticks (150000 milliseconds). It has been marked for termination.(null)
mbkt__free
usdfltpktsz
Note: A complete example of the stack trace is available under Attachments in file KBA_2947966_Full_Example.txt
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Environment
SAP Adaptive Server Enterprise (ASE) 16.0
Product
SAP Adaptive Server Enterprise 12.5 ; SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 15.7 Cluster Edition ; SAP Adaptive Server Enterprise 16.0 ; Sybase Adaptive Server Enterprise 12.5 ; Sybase Adaptive Server Enterprise 15.0 ; Sybase Adaptive Server Enterprise 15.5 ; Sybase Adaptive Server Enterprise Cluster Edition 15.0 ; Sybase Adaptive Server Enterprise Cluster Edition 15.5 ; Sybase Adaptive Server Enterprise Cluster Edition 15.7
Keywords
Sybase, infected, signal, SEGV, SIGSEGV, segment violation, storage access violation, kisignal , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed
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