Re: Bug#865928: linux-image-4.9.0-3-m68k: fails to boot on ARAnyM due to NMI watchdog / soft stuck
On Mon, 26 Jun 2017, Thorsten Glaser wrote:
> >> I think you ran into this issue:
> >>
> >> > https://patchwork.kernel.org/patch/8098441/
>
> I use NatFeat disc only, though, not the ncr controller.
There is no working ncr controller provided by aranym, just a stub for
one, sufficient to fool certain operating systems.
> While I agree that, in general, keeping workarounds for emulator bugs is
> not desirable, there *are* workarounds for real hardware bugs, so
> keeping one for a while until the emulator fixes have propagated,
Well, the kernel command line workaround should meet that need, for those
aranym users who use a kernel with CONFIG_ATARI_SCSI enabled.
> but also something about probing a device crashing a machine (no idea
> whether this affects other environments, though…) which is generally
> unacceptable.
>
Driver probe crashes aren't surprising if the emulated device is
sufficiently broken.
> >See also the aranym patch I sent:
> >
> >https://sourceforge.net/p/aranym/bugs/40/
> >http://marc.info/?l=linux-m68k&m=145387217330168&w=2
> >
> >regression caused by a kernel improvement which exposed an aranym flaw.
>
> Hm, true. Unfortunately, I cannot upgrade ARAnyM until I get a newer
> kernel provided to Zigo’s domU (or switched to pvgrub-xen).
>
The aranym fix was merged upsteam by Andreas Schwab on 2016-03-20.
https://sourceforge.net/p/aranym/code/ci/7af1cbfc5257d2c524ffe009790045d687c69fa5/
If you can't upgrade your emulator, why not ask the aranym maintainers to
backport the fix?
> >This BTS entry should be reassigned to the aranym package. It's a
>
> Unclear about that. Yes, there’s an emulator bug, but does that mean
> there’s nothing to be done in the kernel?
>
You just have to pursuade one of the driver maintainers that there is a
real need.
Michael Schmitz and I are the maintainers for the upstream driver, and
eighteen months ago he and I were in agreement: "Making the 5380 emulation
a bit more complete such as in the MAME source snippet would be my
preference". So that's what was done.
> I will just leave that to the parties responsible.
>
Fair enough.
--
> bye,
> //mirabilos
>
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