Re: Hard kernel lock with gentoo-sources-6.18.18

Michael <[email protected]> Thu, 26 Mar 2026 08:38:53 +0000
Newsgroups	gmane.linux.gentoo.user
Message-ID	<2347957.iZASKD2KPV@rogueboard>
On Wednesday, 25 March 2026 23:31:29 Greenwich Mean Time D. Ben Knoble 
wrote:
> On Wed, Mar 25, 2026 at 2:25 PM Michael <[email protected]> 
wrote:
> > On Tuesday, 24 March 2026 20:23:40 Greenwich Mean Time Tsukasa
> > 
> > Mcp_Reznor wrote:
> > > From: Michael
> > > Sent: Monday, March 23, 2026 7:24 PM
> > > 
> > > >I thought AMDGPU is stable code for many years, or at least it
> > > >has
> > > 
> > > >been with my card:
> > > Lol, pretty sure the amdgpu drivers are like 1/4th the size of the
> > > kernel, and they receive many many updates each kernel version,
> > > albeit most of it will be for adding features or supporting the
> > > latest and greatest.  With the shear scale of millions of lines of
> > > code, it's actually fairly common for numerous new bugs each
> > > release.
> > 
> > I must have been lucky, but yet again I don't do any gaming.  I have
> > not had such a glitch before over numerous desktops and laptops
> > with Radeon cards, well since the good ol' fglrx days.  ;-)
> > 
> > >  I've been rocking amd cards for decades exclusively, skipping a
> > > 
> > > version here or there has always been worth it to me.  If you
> > > check
> > > out bugs.gentoo.org or use the kernels bug trackers, there will
> > > probably already be a report on it, if not, feel free to add one, 
> > > in
> > > the past I've been very impressed by gentoo's team, but this isn't
> > > a
> > > packaging or gentoo related bug most likely.  o7
> > 
> > Hmm ... you are right.  The kernel driver appears to have have had a
> > turn for the worse :
> > 
> > https://community.frame.work/t/attn-critical-bugs-in-amdgpu-driver-i
> > ncluded-with-kernel-6-18-x-6-19-x/79221
> > 
> > I tried 6.19.9 and it went sideways in the same manner.  :-(
> 
> Hm. I'm run 6.18.12 without issue right now, and my next reboot will
> be for 6.18.18.
> 
> I have an AMD RYZEN AI MAX+ 395 w/ Radeon 8060S from Framework; I
> suppose I might have misunderstood what we mean by "amdgpu" but things
> seem smooth here.

I have two other older AMD A10 APUs (desktop & laptop) which work 
smoother than ever with the 6.18.18 and the amdgpu driver.  It's the 
Radeon RX Vega discrete GPU which has this problem.

The "amdgpu" refers to this kernel driver:

CONFIG_DRM_AMDGPU=y

Kernel 6.18.12 and prior have been faultless on all my PCs.  Kernels 
6.18.18 and 6.19.9 both crash on the Vega.
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