In RAC flashback transaction query fails with ORA-600[kcbgtcr_13]

Problem Description
In Oracle database 11gR1 RAC environment flashback transaction queries fails with Oracle bug ORA-600[kcbgtcr_13].
For example,

SQL> SELECT UNDO_SQL FROM FLASHBACK_TRANSACTION_QUERY WHERE XID = '08001C00ACD20901';
ORA-00600: internal error code, arguments: [kcbgtcr_13], [], [], [], [], [], [], [], [], [], [], []

If you investigate into trace file you will see error stack as,

kcbgtcr <- ktuq_get_urec <- ktuqup_get_startslot <- ktuqup_init <- ktuqqp_fetch_next_rec <- ktuqtpgv <- krvxInvokeCallbacks <- krvxrfro_FlashReadOne <- krvxrporr_ProcessOneRedoRecord <- krvxread <- krvxgtsp_GetTxnSingleProcess <- krvxgt <- ktuqfcbk <-qerfxFetch <- opifch2 <- kpoal8 <- opiodr <- ttcpip <- opitsk <- opiino <- opiodr <- opidrv <- sou2o <- opimai_real <- main


Cause of the Problem
This is oracle bug and oracle named this bug as bug 7484261.

Solution of the Problem
This issue is fixed in Oracle database 11gR2. So upgrade your database to 11.2g will solve the problem.

If you are still using 11gR1 then download and apply Patch 7484261 from Metalink. Based on your platform and oracle version download from link https://updates.oracle.com/ARULink/PatchDetails/process_form?patch_num=7484261