Re: Questions about ORA-600

From: Jack van Zanen <>
Date: Fri, 30 Jan 2015 13:43:37 +1100
Message-ID: <>


I am assuming that oracle has supplied the "solution" by analysing the logs send to them.
If that is the case, than the monitoring of the system is for 2 purposes. 1. See if the bug is fixed (one week may not be enough as previously pointed out)
2. Test that the application still works as before and a week should be plenty to test that.

purpose 2 is more important than 1 in my opinion as the proposed solution has a very high probability of succes


Jack van Zanen

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On Wed, Jan 28, 2015 at 7:37 PM, Prem J <> wrote:

> Friends ,
> Got below ORA-600 on one of our customer's (sparc) box .
> *ORA-600 [KCBGET_37] / ORA-600 [1100] AND INSTANCE CRASH(not reproducible
> at will . and this bug is related to some buffer cache corruption)*
> So we suggested to apply patch 6110331 - and to monitor the instance for a
> week .
> Questions from user :
> 1) User : what's the frequency at which ora-600 error occurs ?
> Me : ora-600 is mostly due to bugs and can't really say when it will pop
> up . there is so clear cut way to say when it will happen again.
> 2) user : when you ora-600 are rare and happens at random - on what basis
> do you 1 week of monitoring the instance (after patch) will suffice ?
> me : usually - 1 week is the minimum time you monitor the instance -
> ensure that you test all your important business processes and if all goes
> thro' fine and if ora-600 does not happen again . then you should be safe .
> What would have been your reply for the above 2 questions ? I am looking
> for stronger/deeper points about ORA-600 occurrence and how it should be
> tested (after patch) . Would like to rephrase my next (to user) reply more
> technically & politically correct.
> Regards,
> JP

Received on Fri Jan 30 2015 - 03:43:37 CET

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