2589035 - Timeslice in kboalloc() holding spinlock rpdesmgr_spin, crashing server - SAP ASE

• During periods of high concurrency and heavy load on the system
• ASE encounters a timeslice in the function kboalloc() with a stack trace:

timeslice -1001, current process infected at 0x1633469 (kboalloc+0x479)
This Adaptive Server process has had 15300421 major and 26010644 minor page faults since boot.

• With the server process holding a PDESMGR_SPIN spinlock:

Spinlocks held by kpid 12345678
Spinlock Resource->rpdesmgr_spin at address 0x0000000144119980 owned by  12345678

• Causing ASE to crash.

• Stack trace shows the following functions:

(null)
ptn__pdes_grab
ptn__pdes_install
ind__ides_init_fromrow
ptn_pdes_init
ind__ides_init_fromrow
ind_ides_init
des__fill_common

  Note: A complete stack trace is available under Attachments.

• 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

802811, CR802811, CR#802811, row_count, rowcount , KBA , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed