Created attachment 150708 [details]
Hardware: Thinkpad T420 i5 with NVidia graphics
BIOS: Fails with UEFI, Legacy or UEFI/Legacy
BIOS: Fails with Discreet (NVidia) or Integrated Graphics
11.0-CURRENT from git://xenbits.xen.org/people/royger/freebsd.git | pvh_dom0_v9
From December 15th, 2014 - Unable to determine equivalent upstream revision
Checkout steps: http://wiki.xenproject.org/wiki/FreeBSD_Dom0
From there, I built world, kernel and release
For whatever reason, the copied /usr/src/release/amd64/make-uefi-memstick.sh to make-memstick.sh and it is built with the release.
Upon boot to the resulting UEFI memstick image, the error appears after the vtfb0 driver probes: UEFI boot panic: Unable to reserve vt_fb memory
This likely has nothing to do with the Xen DOM0 patches in their branch but I would not know as I am not a FreeBSD developer.
See the attached photo of the backtrace. I will try to add the loader stage and panic but this seems to only allow for one photo.
UEFI solves what problem exactly?
Created attachment 150709 [details]
Created attachment 150710 [details]
This panic is from the change in https://reviews.freebsd.org/D1291
There I go being all wrong about this being related to the Xen Dom0 patches.
Michael, can you confirm that this still happens on your T420 on -CURRENT (now that the Dom0 changes are merged)?
I believe this is fixed, and haven't received feedback to the contrary. Please reopen if it's still reproducible for you.