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

Symptom

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

Current process (0x1f890092) infected with signal 11 (SIGSEGV)
Address 0x0x00000000016322c2 (ubffreef+0xf2), siginfo (code, address) = (1, 0x0x000000000000001a)

  • The stacktrace may show the following modules:

ubffreef
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

  Note: A complete stack trace is available under Attachments.

  • The terminated process (spid) is holding spinlock CPINFOMEM_SPIN, and ASE server crashes.

Spinlocks held by kpid 529072274
Spinlock CPINFOMEM_SPIN at address 0x00002aaaac371000 owned by 529072274


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Environment

SAP Adaptive Server Enterprise (ASE) 15.7

Product

SAP Adaptive Server Enterprise 15.7

Keywords

CPINFO memory pool, MEMFRAG, CR#821210, 821210, CR821210, SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace, registers , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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