Ingo Molnar <mingo@xxxxxxx> wrote: > > * Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > > > I have no idea if this will make any difference for the > > problem you're seeing, but it has been submitted and it's > > worth trying out. If the problem still occurs, I'll write a > > diagnostic patch to add log messages giving the destiny of > > each request in scsi_io_completion(). > > OK, i've undone the reverts and have applied your fix - it will > take a few hours to see whether the hang still occurs. > I know already started your testing, but.. I find it informative to set my scsi logging to the value below to display non-zero IO status on commands. The overhead impact is low for good completions. sysctl -w dev.scsi.logging_level=4100 Note: This does not provide the exact policy that scsi_io_completion will take on the IO, but it provides the input to scsi_io_completion which should help. -andmike -- Michael Anderson andmike@xxxxxxxxxxxxxxxxxx -- 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
