Bug#1112288: amdgpu: GPU hang with 6.12 & 6.16sid, 6.16 liquorix works.
Control: tags -1 + moreinfo
Hi,
On Sat, Sep 06, 2025 at 08:54:25PM +0200, Salvatore Bonaccorso wrote:
> Hi
>
> On Thu, Aug 28, 2025 at 11:57:39AM +0300, kuu wrote:
> > Package: linux-image-amd64
> > Version: 6.16.3-1
> > Severity: important
> > Tags: upstream
> > X-Debbugs-Cc: kuu@qcm.org
> >
> > Dear Maintainer,
> >
> > *** Reporter, please consider answering these questions, where appropriate ***
> >
> > * What led up to the situation?
> > The user is having system freezes with their AMD Radeon RX 7600M XT GPU on a
> > Debian trixie system. The problem manifests as a full system freeze, typically
> > after a few hours or days of uptime. The freeze is preceded by specific errors
> > at boot time.
> >
> > * What exactly did you do (or not do) that was effective (or
> > ineffective)?
> >
> > Ineffective actions:
> >
> > Using the default Debian trixie kernel (6.12 series). This resulted in a
> > system freeze.
> >
> > Upgrading to the latest official unstable (sid) kernel (6.16.3+1) and the
> > latest firmware-amd-graphics package. This also resulted in a system freeze.
> >
> > Adding the kernel parameters amdgpu.powerplay=0 and amdgpu.noretry=0 did
> > not resolve the issue.
> >
> > Effective action:
> >
> > Installing and using the Liquorix kernel (6.16.3-1-liquorix-amd64). This
> > kernel works perfectly and has not resulted in any system freezes.
> >
> >
> > * What was the outcome of this action?
> >
> > When using the official Debian kernels (6.12 or 6.16), the following errors
> > appear at boot:
> >
> > REG_WAIT timeout
> >
> > hub6-0:1.0: config failed, hub doesn't have any ports
> >
> > These boot errors serve as a direct precursor to the system freeze that occurs
> > later.
> > When using the Liquorix kernel (6.16.3-1-liquorix-amd64), these boot errors do
> > not appear, and the system remains stable indefinitely.
> >
> >
> > * What outcome did you expect instead?
> >
> > The user expected the official Debian 6.16 kernel, paired with the latest
> > firmware, to work as reliably as the Liquorix kernel of the same version, and
> > for the boot errors and subsequent freezes to be gone. The expectation was that
> > the bug would be fixed in a newer kernel version, which was not the case with
> > the official build.
>
> A side note: liquorix seems to have a quite patched kernel (with a
> single big patch?) I think the best you can do here is to ask the
> liquorix developers to forward their fixes so they land in upstream.
One thing we might do here from Debian side is the following:
Please provide full boot logs in both variants. I understand that the
sytsem freezes, if that is a complete system freeze and the ssytem is
not accessible anymore via network to gather the log, then pease use a
netconsole.
Once we have both boot logs we could have a look on spotted
differences.
Regards,
Salvatore
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