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2961108 - Infected with signal 11 at ex_subhandle() when starting replication agent in ASE

Symptom

  • Executing sp_start_rep_agent, the task failed with Current process infected with signal 11 (SIGSEGV) at ex_subhandle().
  • The thread became a zombie thread.
  • There is no stack from this task. The following messages reported in the errorlog:

    Current process (0x63353df9) infected with signal 11 (SIGSEGV)
    Address 0x0x0000000001745bd6 (ex_subhandle+0x66), siginfo (code, address) = (1, 0x0x00000000000000f8)
    kernel **** Saved signal context (0x0x00002aad5de95b40): ****
    kernel uc_flags: 0x1, uc_link: 0x(nil)
    kernel uc_sigmask: 0x7bfbf037 0xb 0x1 0xf8
    kernel uc_stack: ss_sp: 0x(nil), ss_size: 0x0, ss_flags: 0x2
    kernel General Registers (uc_mcontext.gregs):
    kernel PC : 0x0000000001745bd6 (ex_subhandle+0x66)
    kernel RAX : 0x0000000001d8d064 RBX : (nil)
    kernel RCX : 0x00000000000000e8 RDX : 0x00000000000000e8
    kernel RBP : 0x00002aad5de96130 RSP : 0x00002aad5de96100
    kernel R8 : 0x0000000000000064 R9 : 0x00002ab5aa6dce88
    kernel R10 : 0xfffffffffffffff8 R11 : 0x00002aaab8dcd168
    kernel R12 : (nil) R13 : 0x00000000018881bf
    kernel R14 : (nil) R15 : 0x0000000000eb2e81
    kernel RDI : (nil) RSI : (nil)
    kernel RIP : 0x0000000001745bd6 CSGSFS : 0x0000000000000033
    kernel TRAPNO : 0x000000000000000e ERR : 0x0000000000000006
    kernel EFL : 0x0000000000010206
    kernel **** end of signal context ****
    kernel ************************************
    server SQL Text: [no text]
    kernel curdb = 1 tempdb = 2 pstat = 0x10000 p2stat = 0x100000
    kernel p3stat = 0x81a p4stat = 0x0 p5stat = 0x0 p6stat = 0x0 p7stat = 0x10000
    kernel lasterror = 0 preverror = 0 transtate = 1
    kernel curcmd = 0 program =
    kernel extended error information: hostname: login:
    kernel task 1664433657 is zombie


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Environment

  • SAP Adaptive Server Enterprise (ASE) 16 SP02 PL07

This problem does not affect the ASE 16.0 SP03 codeline.

Product

SAP Adaptive Server Enterprise 16.0

Keywords

822398, sp_stop_rep_agent, Scan batch size, sp_start_rep_agent , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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