Re: Plaintext formatRe: amdgpu: panic: Assertion td->td_lkpi_task == NULL

On Mon, 3 Aug 2026 at 09:03, Adrian Chadd <adrian@freebsd.org> wrote:
>
> On Mon, 3 Aug 2026 at 07:48, Klaus Küchemann <maciphone2@googlemail.com> wrote:
> >
> > Hi,
> >
> > unfortunately rebuilt port drm-66-kmod (directly from Makefile inside the work-directory) & reinstalling
> > didn`t help. It’s the port(tested) that triggers the boot panic...Or am I  missing an unknown  patch for the version mismatch?
> >
> > Well, in the past drm graphics sometimes worked under main/current & sometimes did not but never panicked on boot...
> >
> > Have absolutely no clue what could trigger the
> > >
> > >>
> > >> Panic String: Assertion td->td_lkpi_task == NULL failed at /usr/src/sys/compat/linuxkpi/common/src/linux_current.c:85
>
> I may have missed it; what's the full backtrace here?

Ah, I found it:

>> panic() at panic+0x43/frame 0xfffffe01392cc3c8
>> linux_alloc_current() at linux_alloc_current+0x2e3/frame 0xfffffe01392cc418
>> dc_assert_fp_enabled() at dc_assert_fp_enabled+0x77/frame 0xfffffe01392cc438
>> dcn21_update_bw_bounding_box() at dcn21_update_bw_bounding_box+0x26/frame 0xfffffe01392cc470
>> dc_create() at dc_create+0x3c4/frame 0xfffffe01392cc4b0
>> dm_hw_init() at dm_hw_init+0x45e/frame 0xfffffe01392cc6d0
>> amdgpu_device_ip_hw_init_phase2() at amdgpu_device_ip_hw_init_phase2+0x5a/frame 0xfffffe01392cc700

If you're absolutely sure you're running the most recent -head and
drm-66 build, then I'd file a bug.

My local machines were just updated to:

```
commit 16e47f317c4ce2be5fed530bf8a9af9f9bf55364 (upstream/main, upstream/HEAD)
Author: Gleb Popov <arrowd@FreeBSD.org>
Date:   Mon Jul 27 21:18:12 2026 +0300

    nuageinit: Allow the userdata script to run before firstboot* rc services
```
and
```
drm-66-kmod-6.6.25.1600019_10  Direct Rendering Manager (DRM) GPU drivers
```

But it's very possible that your amdgpu is taking a different setup
path to mine.
Mine loads 'green_sardine' firmware blobs, is an AMD Ryzen 7 7730U chipset.


-adrian