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2900253 - Signal 11 in ubffreef() holding spinlock CPINFOMEM_SPIN - SAP ASE

Symptom

  • ASE errorlog reports signal 11 in the module ubffreef() followed by a stack trace, for example:

Current process (0x0) infected with signal 11 (SIGSEGV)
Address 0x0x (ubffreef+0x0), siginfo (code, address) = (1, 0x0x)

  • The stacktrace may show below modules

LeScanOp::_LeOpRelease(ExeCtxt&)
LeEmitXchgOp::_LeOpAcquire(ExeCtxt&)
LeNLJOp::_LeOpRelease(ExeCtxt&)
LeEmitXchgOp::_LeOpAcquire(ExeCtxt&)
LeSQFilterOp::_LeOpRelease(ExeCtxt&)
LeEmitXchgOp::_LeOpAcquire(ExeCtxt&)
LeHashOp::_LeOpRelease(ExeCtxt&)
LeScalarAggOp::_LeOpRelease(ExeCtxt&)
LeRestrictOp::_LeOpRelease(ExeCtxt&)
LeEmittOp::_LeOpRelease(ExeCtxt&)
LePlanRelease
exec_lava
s_execute

  • The spid is holding spinlock CPINFOMEM_SPIN, and ASE server crashes.

Spinlocks held by kpid xxx
Spinlock CPINFOMEM_SPIN at address 0x0xx owned by xx


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Environment

SAP Adaptive Server Enterprise (ASE)

Product

SAP Adaptive Server Enterprise 15.7

Keywords

ubffreef(), ubffreef, CPINFO memory pool, CPINFOMEM_SPIN, MEMFRAG, CR#821210, 821210, CR 821210 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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