某用户asm实例遇到ora-00600 [kfdaudealloc2]错误，详细日志如下： errors in file /opt/oracle/diag/asm/+asm/+asm1/trace/+asm1_arb6_15539.trc:ora-00600: internal error code, arguments: [kfdaudealloc2], [35], [272], [748], [], [], [], [], [], []
某用户asm实例遇到ora-00600 [kfdaudealloc2]错误，详细日志如下：
errors in file /opt/oracle/diag/asm/+asm/+asm1/trace/+asm1_arb6_15539.trc:ora-00600: internal error code, arguments: [kfdaudealloc2], [35], [272], [748], [], [], [], [], [], [], [], []note: stopping process arb6error: ora-600 thrown in arb2 for group number 1errors in file /opt/oracle/diag/asm/+asm/+asm1/trace/+asm1_arb2_15523.trc:ora-00600: internal error code, arguments: [kfdaudealloc2], [148], [270], [720], [], [], [], [], [], [], [], []note: stopping process arb2error: ora-600 thrown in arb3 for group number 1errors in file /opt/oracle/diag/asm/+asm/+asm1/trace/+asm1_arb3_15527.trc:ora-00600: internal error code, arguments: [kfdaudealloc2], [196], [271], [0], [], [], [], [], [], [], [], []note: stopping process arb3error: ora-600 thrown in arb5 for group number 1errors in file /opt/oracle/diag/asm/+asm/+asm1/trace/+asm1_arb5_15535.trc:ora-00600: internal error code, arguments: [kfdaudealloc2], [363], [272], [1], [], [], [], [], [], [], [], []note: stopping process arb5errors in file /u02/oracle/asm/diag/asm/+asm/+asm/trace/+asm_rbal_27162.trc (incident=674120):ora-00600: internal error code, arguments: [kfdaudealloc2], [101], [335], [300], [], [], [], [], [], [], [], []incident details in: /u02/oracle/asm/diag/asm/+asm/+asm/incident/incdir_674120/+asm_rbal_27162_i674120.trcuse adrci or support workbench to package the incident.see note 411.1 at my oracle support for error and packaging details.error: an unrecoverable error has been identified in asm metadata. the instance will be taken down.sun nov 25 20:51:11 2012note: amdu dump of disk group dwhctl1 created at /u02/oracle/asm/diag/asm/+asm/+asm/incident/incdir_674120note: starting check of diskgroup dwhctl1error: file +dwhctl1.330.797592669: f330 px11 => d0 a7650 => f385 px135: fnum mismatcherror: file +dwhctl1.330.797592669: f330 px12 => d0 a7651 => f385 px136: fnum mismatch
kfdaudealloc2意味着kernel files disk au deallocate ，其负责回收asm disk上的au 。发生该错误一般说明 asm metadata中的allocation table可能存在逻辑上的数据不一致。
相关bug :
bug 5682184 oeri[kfdaudealloc2] from resize/drop more than 16tb asm?file
bug 10621169 i/o errors during rac asm recovery may drop redo and cause metadata?corruptions / ora-600
bug 10017130 – ora-600 [kfdaudealloc2] during?rebalance after adding disks
出现该问题情况下可能需要手动patch asm metadata，建议联系oracle support原厂 或诗檀软件 ?400-690-3643。
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