On Sun, Oct 11 2009, Simon Kirby wrote: > On Tue, Oct 06, 2009 at 04:20:32PM -0400, Alan D. Brunelle wrote: > > > Coincidentally I was investigating something similar w/ RHEL 5.4 at this > > very moment - just wanted to know if that was a common denominator. > > > > Could you run the attached SystemTap script and send out the output? > > [You may have to get `systemtap' though...] > > Thanks for the excuse to try SystemTap. :) I have some traces, but I > don't think the UT case is abnormal. On my desktop at home, I can see > btraces such as this, which seem to show it happening often: It depends a lot on the workload. The UT will trigger if the amount of writes isn't very high - if you go above 4 queued writes, a regular unplug will trigger. So if you see if for write intensive workloads, it is almost surely a bug. For background firefox activity on your desktop, it's not unusual. If you see if for reads, it's almost always a bug. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-btrace" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
