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2978619 - Signal 11 at ubofree with ups_disable_hashstats_parallelism in stack crashing server - SAP ASE

Symptom

  • ASE hits a signal 11 at address ubofree
  • Stack trace includes function ups_disable_hashstats_parallelism
  • Server goes down because the spid is holding Kernel Spinlock
  • Error log entries include:
    • a full stack example is attached in file Full_stack_example.txt

Current process (0x64e302ff) infected with signal 11 (SIGSEGV)
Address 0x0x0000000001f4d283 (ubofree+0x373)

Spinlocks held by kpid 1692599039
Spinlock Kernel Spinlock Spinlock at address 0x00002aaaac774a00 owned by 1692599039

  • stack trace including:

ubofree
ups_disable_hashstats_parallelism
sort
cri_ptn_index
cri_physbuild
cri_bldindex
cri_main


Read more...

Environment

  • SAP Adaptive Server Enterprise (ASE)
  • Recent 16.0 patch levels
    • 16.0 SP02 PL09 / PL09 HF1
    • 16.0 SP03 PL09
    • others may be affected

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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