Running Oracle 10.2.0.2 on Solaris 9. Encountered Bug 5155885 where my database parameter cursor_sharing = similar. Found the errors below in my alert log file:
ORA-00600: internal error code, arguments: [kkslgbv0], , , , , , , 
A quick check on Metalink using “ora-600 kkslgbv0” as my search criteria and I find the answers in Metalink Notes 263158.1 and 382567.1. It is mentioned as a bug specific to Oracle 10.2.0.2 64-bit in Note 382567.1.
1) Set cursor_sharing to exact
2) Download and apply Patch 5155885 from Metalink.
For now, I settled on Option #1.
I can’t find any reference to Bug 5155885 being fixed in the 10.2.0.3 Patch Set (Metalink Note 401435.1).
According to Metalink Note 401436.1, the bug fix is included in the 10.2.0.4 Patch Set. Availability of the 10.2.0.4 Patch Set is expected in Q4 2007 according to recent information from Oracle Apps Technology blog and Laurent Schneider’s blog.
It appears the 10.2.0.4 patch set has been pushed into 2008. More information in Laurent Schneider’s blog post.