Re: stable/13 - amdgpu broken with n253286-d8a88ec38149

From: Emmanuel Vadot <manu_at_bidouilliste.com>
Date: Sat, 17 Dec 2022 08:51:46 UTC
 Hello Jonathan,

On Sat, 17 Dec 2022 02:42:42 +0000
Jonathan Vasquez <jon@xyinn.org> wrote:

> Oh, I think I understand a bit better what you meant. Yup, after I found which stable/13 commit was problematic, I compiled HEAD~1 which still works, then I recompiled drm-510-kmod and it's working now. But I still wanted to report it since I'm guessing there will need to be some tweaks made to drm-510-kmod so that it works again with the latest stable/13.

 There is no tweaks to be done for drm-kmod.
 In fact in the last two days to commits who broke KBI between 13.1 and
stable/13 were taken care of (one I've reverted and the other one being
the one Doug fixed).
 Yes it's a bit unfortunate for stable/13 users that we broke KBI a few
times and that you needed to recompile drm-kmod for it to work but what
I want is when 13.2 is released users don't have to recompile the ports
and can safely upgrade their machines (as the drm-510-kmod port will be
compiled on 13.1 for 3 months).

 Cheers,

> Jonathan Vasquez
> PGP: 34DA 858C 1447 509E C77A D49F FB85 90B7 C4CA 5279
> Sent with ProtonMail Secure Email
> 
> ------- Original Message -------
> On Friday, December 16th, 2022 at 21:31, Jonathan Vasquez <jon@xyinn.org> wrote:
> 
> > Hey Doug,
> >
> > Not a problem. I actually did clean rebuilds of everything, including pulling the latest ports and cleanly reinstalling drm-510-kmod and gpu-firmware-amd-kmod. But it still failed.
> >
> > Jonathan Vasquez
> > PGP: 34DA 858C 1447 509E C77A D49F FB85 90B7 C4CA 5279
> > Sent with ProtonMail Secure Email
> >
> > Sent from Proton Mail mobile
> >
> > -------- Original Message --------
> > On Dec 16, 2022, 21:05, Doug Moore < unkadoug@gmail.com> wrote:
> >
> >> Short answer - try rebuilding kmod from scratch.
> >>
> >> Long answer - I moved into stable/13 changes from main that changed some binary-level representations. One who found that the kmod he built before those changes no longer worked pointed out my error. So I made a change to stable/13 recently to restore the original representations, and satisfied that person?s complaint. But, someone who built kmod recently will find things broken, the way the original fellow did. I can only apologize and ask you to rebuild non-kernel stuff based on the stable/13 of more than a day ago. I hadn?t considered the impact of my changes on non-kernel code.
> >> Doug
> >>
> >> Sent from my iPad
> >>
> >>> On Dec 16, 2022, at 6:50 PM, Jonathan Vasquez <jon@xyinn.org> wrote:
> >>
> >>> ?
> >>> Hey all,
> >>>
> >>> it seems that my AMD Radeon 6900 XT doesn't load the amdgpu properly anymore. The machine will crash immediately upon load. After a bisect, I found the posted commit. This card uses the sienna_cichlid? flavor for gpu-firmware-amd-kmod.
> >>>
> >>> commit d8a88ec381498f5942403088d28ee325b92e9a78
> >>> Author: Doug Moore <dougm@FreeBSD.org>
> >>> Date: Fri Dec 16 03:15:28 2022 -0600
> >>>
> >>> rb_tree: restore binary compat w/ 13
> >>>
> >>> A change to RB_COLOR_INSERT, when merged into stable/13, broke binary
> >>> compatibility. For 13, call the new function RB_DO_COLOR_INSERT, and
> >>> restore the old function with the original name and parameters. Define
> >>> RB_COLOR_INSERT in tree.h, and remove changes to the linux rbtree
> >>> header.
> >>>
> >>> Another change altered the order of pointers in the RB_ENTRY struct.
> >>> For 13, restore the original order.
> >>>
> >>> Reported by: manu
> >>> Reviewed by: hselasky
> >>> Tested by: manu
> >>> Differential Revision: https://reviews.freebsd.org/D37716
> >>>
> >>> sys/compat/linuxkpi/common/include/linux/rbtree.h | 11 ++----
> >>> sys/sys/tree.h | 46 ++++++++++++++++-------
> >>>
> >>> Jonathan Vasquez
> >>> PGP: 34DA 858C 1447 509E C77A D49F FB85 90B7 C4CA 5279
> >>> Sent with ProtonMail Secure Email

-- 
Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>