On Fri, Apr 30, 2021 at 01:51:11PM +0200, Peter N. M. Hansteen wrote:
> On Fri, Apr 30, 2021 at 12:00:05PM +1000, Jonathan Gray wrote:
> >
> > If you can build a kernel on another machine try
> >
> > Index: sys/dev/acpi/acpi.c
> > ===================================================================
> > RCS file: /cvs/src/sys/dev/acpi/acpi.c,v
> > retrieving revision 1.397
> > diff -u -p -r1.397 acpi.c
> > --- sys/dev/acpi/acpi.c 15 Mar 2021 22:44:57 -0000 1.397
> > +++ sys/dev/acpi/acpi.c 30 Apr 2021 01:57:00 -0000
> > @@ -262,6 +262,11 @@ acpi_gasio(struct acpi_softc *sc, int io
> > dnprintf(50, "gasio: %.2x 0x%.8llx %s\n",
> > iospace, address, (iodir == ACPI_IOWRITE) ? "write" : "read");
> >
> > + if (access_size == 0) {
> > + printf("%s: invalid size 0\n", DEVNAME(sc));
> > + return -1;
> > + }
> > +
> > KASSERT((len % access_size) == 0);
> >
> > pb = (uint8_t *)buffer;
>
> I'm building with that now on the older machine. I wonder, is this change
> small and non-intrusive enough that we could hope it makes it into an amd64
> snapshot soon?
>
> (I fully appreciate why developers want faster machines :))
>
> - Peter
If you can boot bsd.rd you should be able to mount / and fetch a kernel
over http without having to build a snapshot.
Or perhaps boot -c and disable acpicpu* if that doesn't break anything.
