Hello brian, On Sat, Mar 15, 2025 at 10:35:37PM +0000, brian m. carlson wrote: > On 2025-03-15 at 15:11:07, Salvatore Bonaccorso wrote: > > Okay that is already great, thank you for the time. > > > > Now the next would in this case be ideally to bisect mainline between > > v6.10 and v6.11-rc4 to identify the commit. On each step to build a > > deb package for the kernel are hilighted at: > > https://wiki.debian.org/DebianKernel/GitBisect > > These directions were very helpful in compiling a kernel. > Unfortunately, it led to some unusual results. > > The first step in the bisect was to try the merge base, which was 6.10, > which was bad, at which point Git refused to continue because the > problem had been fixed on the v6.10 branch.
Can you try a vanilla 6.10.12 to confirm that there was a fix on the
v6.10.x branch? If so, it would be interesting to know which commit
fixed the issue for you. You can bisect that; I'd recommend something
like
git bisect start --term-new=fine --term-old=broken v6.10.12 v6.10
to reduce the confusion.
> So I thought I'd try Debian's 6.9.2, which worked. Then I tried
> upstream 6.9, which also failed. To verify, I tried upstream 6.9.2,
> which failed as well.
Huh, this is surprising. Can you try to import the Debian patchstack
from 6.9.2 onto 6.9.2 and bisect in that one to find the fixing commit?
> Note that I used `make oldddefconfig` with Debian's config to configure
> the kernel, stepping back from v6.11-rc4, so it's nearly identical to
> the Debian kernel (it's not signed and it doesn't have debug info, but
> otherwise it should be pretty much the same. In all cases, the tooling
> is whatever's in Debian unstable at the moment.
Using `make oldddefconfig` is unstable when going up and down in the git
history. A more suiteable approach is:
cp .config arch/x86/configs/brian_defconfig
and then use `make brian_defconfig` instead of `make oldconfig` in each
step.
> My conclusion is thus that Debian includes some patch in the 6.9 and
> 6.10 series that fixes suspend and hibernate, but that patch is not
> included in 6.11 and newer.
I look forward to your test results. Your findings are really strange.
Best regards
Uwe
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