On Thu, 2006-01-12 at 18:36 -0500, Dave Jones wrote:
>  > SCSI device sdb: 321672960 512-byte hdwr sectors (164697 MB) 
>  > slab error in cache_free_debugcheck(): cache `sgpool-8': double free, or 
>  > memory outside object was overwritten 
>  >  [<c0153593>] cache_free_debugcheck+0x1ab/0x22f     [<c014d3c2>] 
>  > mempool_free+0x3a/0x73 
>  >  [<c01540e2>] kmem_cache_free+0x2a/0x69     [<c014d3c2>] 
>  > mempool_free+0x3a/0x73 
>  >  [<f8862c8b>] scsi_io_completion+0x207/0x4d2 [scsi_mod]     [<f885dcad>] 

This is a classic symptom of done() being called twice on the same
command.  Best guess would be a driver issue.

James




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