Starting ASM Instance = Errors in the Alert Log: ORA-7445[ktstrlh()+5]
(Doc ID 2420436.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
Starting an ASM instance fails with the following error in the alert log:
ORA-07445: exception encountered: core dump [ktstrlh()+5] [SIGSEGV] [ADDR:0x0] [PC:0xE95C17] [SI_KERNEL(general_protection)] 
The Call Stack Trace in the associated incident trace file shows:
skdstdst <- ksedst1 <- ksedst <- dbkedDefDump <- ksedmp <- ssexhd <- sighandler <- ktstrlh <- ksunfy <- ksunfy <- kscnfy <- ksmcsg <- opistr_real <- opistr <- opiodr <- ttcpip <- opitsk <- opiino <- opiodr <- opidrv <- sou2o <- opimai_real <- ssthrdmain <- main <- libc_start_main <- start
An OS patch was applied prior to this issue occurring.
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