Hello, On Sun, Sep 22, 2013 at 11:59:53AM -0700, Dmitry Vyukov wrote: > I've noticed that free happens in scsi_error_handler thread, so maybe > a timeout or some other error condition is involved here. > It is possible that timeout happens while the request is still being > in process of submitting (in ata_scsi_queuecmd)? Yeah, could be. IIRC, there's still race condition in block / scsi timeout handling. Hmmm... -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html