> > This is a bug actually in the megaraid. Aha, I'll track it. > > And this is a direct command submission path: it already passed both > online check gates in this path *after* the device was offlined, so > adding a third won't fix this. Yeah, I have notice that, however, from the logs, the device have offline, but why still can send cmd to device? isn't the sequences of printk suspectful? > single disk, so the I/O was definitely bound for sda? Secondly, can you > reproduce with a modern (2.6.20) kernel. Your trace strongly suggests > that the device came back online for some reason and then the megaraid > driver died. It's hard to update the kernel for the system is a production system, and we cannot debug it at the box :( I dont know if you have notice, the logs come from diskdump, if it caused by diskdump? Thanks, Joe - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html