Hang on subsequent boot with PCI-passthrough

Hilton Day hilton.day at gmail.com
Wed Nov 13 18:57:01 UTC 2013

Hi Marek,

This is a known issue with the LSI HBA's which affects virtual instances
(VMware, Xen etc)

Add these lines to /boot/loader.conf:


On Wed, Nov 13, 2013 at 4:07 AM, Marek R <marek321 at gmail.com> wrote:

> I'm trying to passthrough a LSI HBA to a fbsd xen hvm guest.
> The problem is, it only works the first time. On subsequent boots fbsd
> hangs on the LSI driver, trying to initialize it.
> I presume this is because the PCI device is left in a different state
> than right after the host boot.
> The HBA supports function level reset and I tested it with another OS
> to make sure it indeed works.
> Steps to reproduce:
> 1. Boot host.
> 2. Boot fbsd guest with passed PCI device. Fbsd boots fine.
> 3. Restart the guest. Boot hangs on device initialization.
> The fbsd guest reboots fine without the passed in device.
> The host is Linux, Xen is 4.3.0. Tried with fbsd 9.2 and 10beta3. The
> host does not initialize the device (it's "hidden" with pciback)
> Is this a fbsd bug? Is there maybe some setting or boot option I could
> try to fix this?
> _______________________________________________
> freebsd-xen at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-xen
> To unsubscribe, send any mail to "freebsd-xen-unsubscribe at freebsd.org"

More information about the freebsd-xen mailing list