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2655971 - Signal 11 at address ubfshrink with spinlock SSQLCACHE_SPIN, causing server shutdown - SAP ASE

Symptom

  • ASE errorlog reports ELC_VALIDATION_ERROR
  • Followed by a signal 11 at address ubfshrink 
  • Which crashes ASE as the spid is holding SSQLCACHE_SPIN spinlock
  • The errorlog shows entries including:

ELC_VALIDATION_ERROR: Page not marked free. pelc = 0x2aaab06af2b8

Current process (0x3c501e3) infected with signal 11 (SIGSEGV)
Address 0x00000000818b62b4 (ubfshrink+0x12c)

Spinlocks held by 
kpid 12345678
Spinlock SSQLCACHE_SPIN at address 7ffffffe215a9480 ...

ubfshrink
ssql__rmplans
ssql_save_SQL
lwp_create
proccreate
s_crtproc
s_cache_stmt

ueshutdown: exiting


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Environment

SAP Adaptive Server Enterprise (ASE) 16.0 SP03 (GA or PL00) and above

Product

SAP Adaptive Server Enterprise 16.0

Keywords

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

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