On 17/02/14 21:00, Karl Pielorz wrote: > > --On 17 February 2014 16:56:14 +0100 Roger Pau Monné > <roger....@citrix.com> wrote: > >> In order to provide more debug info, could you apply the following patch: >> >> http://xenbits.xen.org/people/royger/0001-xen-debug-Xen-PV-timer.patch >> >> It will expand the panic message a little bit. Also, after applying the >> patch you can manually edit sys/dev/xen/timer/timer.c and increase >> NUM_RETRIES to see if that solves the problem. > > Ok, tried adjusting the NUM_RETRIES #define in that patch (I left the > PCI passthroughs in place at the moment). I had no idea what to set it > to - so I went for 600. With it set at 600 that same guest now boots Ok > now every time I've tried. > > But I did notice the whole 'SMP AP CPU #x Launched!' takes forever, and > varies a lot (e.g. one boot it took nearly 2 minutes to launch all CPU's > and continue). > > I removed the PCI passthroughs on that guest, and it now flies through > the AP launches. Unfortunately though I need the passthroughs :( > > I've passed through the onboard LSI 2308 SAS controller (mps), and a > dual port PCI-E Intel NIC (igb) - all the passthroughs work on FreeBSD > once it's booted - but obviously, not without causing the slow AP CPU > launches.
I've passed through a dual port BCE card (Broadcom NetXtreme II BCM5709) without problems. As a test, could you try to only pass the nic or the SAS controller to see if we can figure out if this is specific to one of the devices? > I also remembered I set 'hw.pci.enable_msi=1' and 'hw.pci.enable_msix=0' > in /etc/sysctl.conf - someone else found that was necessary to use the > LSI in passthrough mode. > > Aside from the slow launches, do you think (as they work) it's going to > cause issues leaving those passthroughs active? Not sure, still have to figure out what's going on. Roger. _______________________________________________ freebsd-xen@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to "freebsd-xen-unsubscr...@freebsd.org"
