[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] spurious interrupts
> >On Wed, 2006-04-12 at 13:48 -0400, Stephen C. Tweedie wrote: > >> > While I haven't heard anything whether others were able to reproduce >> > this, I was now able to nail this down to a simple operation: On the >> > system I'm testing with I was able to identify that the handling of >> > the interrupt from the SCSI controller triggers a simultaneous >> > interrupt from one of the USB controllers > >Turns out that I'm seeing the same. On the box that was showing > >> irq 16: nobody cared >> Disabling IRQ #16 > >it seems that the irq16 is indeed getting dispatched every time an >interrupt arrives for the disk. In this case it's sata, ICH5 on irq17. > >> (At least, at the time of writing that box is showing only >> at 15,000 interrupts on irq16 after an hour instead of 100,000 after 10 >> minutes > >this turned out to be related to disk activity, and a heavy disk load >rapidly reproduced the problem even with the latest Xen kernel. > We see similar behavior with network traffic - irq16 (attached to USB) getting dispatched every time NIC interrupt is triggered. Thanks, Prafulla _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |