[Bug 196084] New: UEFI boot panic: Unable to reserve vt_fb memory

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu Dec 18 07:43:25 UTC 2014


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196084

            Bug ID: 196084
           Summary: UEFI boot panic: Unable to reserve vt_fb memory
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: editor at callfortesting.org

Created attachment 150708
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=150708&action=edit
Backtrace

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?

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