Re: Current state of the Linux kernel on SPARC

[Dennis Clarke <dclarke@blastwave.org>]

On 8/29/25 11:07, John Paul Adrian Glaubitz wrote:
> On Fri, 2025-08-29 at 07:49 -0700, Tony Rodriguez wrote:
>
> > Only mentioned not ruling out systemd because the panic seems to happen shortly after systemd-udev.
>
> Both systemd and udev have been observed to trigger backtraces in my tests as well along with other
> applications such as sshd and apt, see:
>
> https://lore.kernel.org/all/2daaa0648e9bcca42bf7a76d90580725f44fb4bc.camel@physik.fu-berlin.de/
>
> > I understand Adrian’s points which are valid (especially regarding the kernel).
>
> The point is that we have already discovered a bug that affects almost all SPARC variants and we
> know it's causing these crashes. This is why I was asking you to test this patch as I'm 99% sure
> it will fix those crashes.
>
> You can just cross-compile the kernel from x86_64 using the kernel toolchain:
>
> https://mirrors.edge.kernel.org/pub/tools/crosstool/
>
> > I also understand some dislike systemd (understandable as well).
>
> The systemd discussion has already been held ad nauseam which is why I would like to avoid the
> discussion on this list. If someone doesn't want to use systemd, they're free to do so. But
> please let's not have that flame war here.
Just keep it simple. Get a single-user mode situation with a shell.
Nothing  else. That means reduce ALL other noise sources from the
signal. Don't get all sensitive about SystemD.



--
--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken