Re: Kernel Panic 6.5.0-1 PPC
On 9/28/23 2:38 AM, Dan Whitehouse wrote:
> Hi all,
> I am seeing a kernel panic on my PowerMac3,1 MacRISC Power Macintosh
> running debian with kernel 6.5.0-1.
>
> It seems to be working well with:
>
> Linux powermac-g4 6.4.0-4-powerpc #1 Debian 6.4.13-1 (2023-08-31) ppc
> GNU/Linux
>
> I have a photo of the panic screen which I can attach if useful.
>
On a PowerMac G4 MDD (2 CPUs, 2 GiB) (PowerMac3,6 MacRISC2 MacRISC Power
Macintosh) upgraded to the latest Debian SID, vmlinux-6.5.0-1-powerpc
crashes with "Oops: Kernel access of bad area, sig: 11 [#1]".
Kernel vmlinux-6.5.0-1-powerpc-smp hangs (it's not clear whether it
crashes) after "Movable zone start for each node."
So there may be two issues.
Kernels vmlinux-6.4.0-1-powerpc and vmlinux-6.4.0-1-powerpc-smp both work.
My first guess, without trying a bisect, is that there may be an issue
with "CONFIG_KFENCE", which seem to be expanded in vmlinux-6.5.0-1-powerpc*.
I haven't tried the latest Debian kernel on any other PowerMac systems,
though I can check on G3 and G5 if that would be useful.
-Stan Johnson
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