maintainer-feedback requested: [Bug 297188] graphics/drm-kmod: Panic: vmap_pfn() is not implemented for Intel ARC A310 GPU

[email protected] Fri, 31 Jul 2026 08:21:10 +0000

Newsgroups	gmane.os.freebsd.devel.x11
Message-ID	<[email protected]/bugzilla/>

Bugzilla Automation <[email protected]> has asked freebsd-x11 (Nobody)
<[email protected]> for maintainer-feedback:
Bug 297188: graphics/drm-kmod: Panic: vmap_pfn() is not implemented for Int=
el
ARC A310 GPU
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D297188



--- Description ---
Host: FreeBSD 15.1p2
Hardware: HP Z4 G4 Workstation Intel i7-7800X
GPU: Sparkle Intel Arc A310 ECO, 4GB GDDR6

Loading i915kms.ko results in:
panic: vmap_pfn() is not implemented

Discussing with colleagues: 15.1 may support vmap_pfn() but the port does n=
ot
appear to be built to correctly use it, and manually building it from source
results in "Fatal trap 12 in kernel mode".

What additional information would be helpful?