Exadata Cell Server alert log shows ORA-00600: internal error code, arguments: [DiskIOSched::UpdateIOCounts2:pendingioc] (Doc ID 1958194.1)

Last updated on MAY 14, 2017

Applies to:

Oracle Exadata Storage Server Software - Version 11.2.3.3.1 to 11.2.3.3.1 [Release 11.2]
Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.3 [Release 11.2]
Information in this document applies to any platform.

Symptoms

Cell Sever alert log is reporting  ORA-00600: internal error code, arguments: [DiskIOSched::UpdateIOCounts2:pendingioc].

ORA-00600: internal error code, arguments: [DiskIOSched::UpdateIOCounts2:pendingioc]

Call stack

.............

ossex_dump_stack <- 1130 <- ossex_dump_all <- ossp_state_dump <- dbgexPhaseII
        <- dbgexProcessError <- dbgeExecuteForError <- dbgePostErrorKGE <- 2691 <- osspdde
         <- kgerinv <- kgeasnmierr <- ZN11DiskIOSched21P <- rocessCompletedIORe <- qEP17CellDiskIORequ
          <- est <- ZN8CellDisk19handl <- eOneCompletionEjP17 <- CellDiskIORequestPS <- 1_Rj
           <- ZN8CellDisk17handl <- eCompletionsEjPP14B <- asicIORequestRjS2_ <- ZN7BlockIO7findJob <- asicIORequestRjS2_
            <- ZN9Scheduler7nextJ <- obEv <- ZN10UserThread8mai <- nLoopEv <- ZN10UserThread3run
             <- ZN9Scheduler8sched <- uleEv <- Z16kernelThreadMai <- nPv <- oracle_fp_thread_ma
              <- start_thread <- in <- clone <- 0000000000000000

 

Cause

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