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2566696 - Stack trace with signal 11 in pipe_default_grabbuf() and spinlock - SAP ASE

Symptom

  • A create clustered index is run on a table with 20 partitions (round-robin)
     
  • During the index create a Signal 11 occurs followed by a stack trace 
     
    Current process (0x3170317) infected with signal 11 (SIGSEGV)
    Address 0x0000000100457328 (pipe_default_grabbuf+0xe4), siginfo (code, address) = (51, 0x0000000000000008)
  • The stack trace shows the following modules: 

pipe_default_grabbuf
pipe_bufgrab_func
pipe_grabbuf
psort__insrow
psort__dolscanptn
psort__dolscan

  • A spinlock is held open by the user at the time of the signal 11

Spinlocks held by  kpid 51839767
Spinlock Dbtable->dbt_defpipebufgpspin at address 00000001629d89e0 owned by 51839767
kernel  End of spinlock display

  • The held spinlock on the buffer causes the server to do an immediate shutdown

ueshutdown: exiting


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Environment

SAP Adaptive Server Enterprise (ASE) 15.0.3 ESD #4.3

Product

Sybase Adaptive Server Enterprise 15.0

Keywords

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

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