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2414647 - Server crash with signal 11 in lock__draincache or lock__fillcache_work - SAP ASE

Symptom

  • Your system which runs on ASE database suddenly crashes
  • Corresponding errors in ASE errorlog is a signal 11 (SIGSEGV) at address lock__draincache or lock__fillcache_work
  • The victim processes hit this signal 11 when holding spinlock rlockobjpool_spin, hence ASE crashes
  • Errorlog entries will include :

Current process (...) infected with signal 11 (SIGSEGV)
Address 0x0x0000000000ea6b2f (lock__draincache+0x8f)

referencing functions:

lock__draincache
lock_release
do_bt_release_rlocks
bt__splitleaf
bt__insert_into_leaf

OR

Current process (...) infected with signal 11 (SIGSEGV)
Address 0x0x0000000000e19778 (lock__fillcache_work+0x158)

Spinlocks held by kpid 12345678
Spinlock Resource->rlockobjpool_spin

referencing functions:

lock__fillcache_work
lock__fillcache
lock_do_logical


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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7 for Business Suite
  • SAP Adaptive Server Enterprise (ASE) 16.0 for Business Suite
  • SAP Adaptive Server Enterprise (ASE) 15.7
  • SAP Adaptive Server Enterprise (ASE) 16.0

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0

Keywords

signal 11, lock__draincache, lock__fillcache_work, Spinlock, rlockobjpool_spin, crash , KBA , BC-DB-SYB , SAP Business Suite on Sybase ASE Database Platform , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BW-SYS-DB-SYB , BW on Sybase ASE Database Platform , Bug Filed

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