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Oracle full of features but BUGs too ORA-00600: internal error code, arguments: [kcratr1_lostwrt],

SETUP : two node 9i rac 9204 ON ocfs ON WIN 2K

first instance crahed due OCFS bug
now second rtried instance recovery of crashed first instance and it quite successfully recovered the first instance(appareent fro malert log of seconds instance)
but sooner secondnstance crashes too and throws ora-600 internal error.

ORA-00600: internal error code, arguments: [kcratr1_lostwrt], [], [], [], [], [], [], []

I tried to manually start the database but oracle throwing same error and complaining about corrupted logs the lost update. I used first argument of ora-600 here [kcratr1_lostwrt] - searched in metalink using ora-600 lookup tool broadly suggested either that was dangerous situation - required media recovery or that could be BUG with other OS like HP Unix and oracle software versions 9205 onwards. which was not our case.Oracle was spuriously trying to recover in second case and metalink told it can be recovered easily in second case.

I preferred to choose second solution path first over giving recover database command (with out restore from backup/after restore). So I set undocument parameter two_pass=false and opened the database successfully from first instance.then I removed this parameter and opened from first instance and second instance,respectively.

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