Date: Mon, 28 Jan 2019 19:30:40 -0800 From: Mark Millard <marklmi@yahoo.com> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: Re: PowerMac G5 4-core (system total): head variant automatically booting smp fine (no VM_MAX_KERNEL_ADDRESS workaround); but shutdown issue Message-ID: <14F0F9E2-53C8-4E0A-B0F6-4491A9EC6076@yahoo.com> In-Reply-To: <47F8D1D3-11BC-4EC9-89AE-65566A6F9087@yahoo.com> References: <47F8D1D3-11BC-4EC9-89AE-65566A6F9087@yahoo.com>
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[The bug*daemon time-outs during shutdown also happen without fan-speed
issues happening first (or during shutdown).]
On 2019-Jan-28, at 18:16, Mark Millard <marklmi@yahoo.com> wrote:
> Based on my:
>=20
> # uname -apKU
> FreeBSD FBSDG5L 13.0-CURRENT FreeBSD 13.0-CURRENT #6 r341836M: Mon Jan =
28 14:42:29 PST 2019 =
markmi@FBSDFSSD:/usr/obj/powerpc64vtsc_xtoolchain-gcc/powerpc.powerpc64/us=
r/src/powerpc.powerpc64/sys/GENERIC64vtsc-NODBG powerpc powerpc64 =
1300005 1300005
>=20
> with:
>=20
> # svnlite diff /usr/src/sys/powerpc/include/vmparam.h =
=
=20
> #
>=20
> (So no VM_MAX_KERNEL_ADDRESS workaround.)
> And:
>=20
> # svnlite diff /usr/src/stand/common/metadata.c
> Index: /usr/src/stand/common/metadata.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- /usr/src/stand/common/metadata.c (revision 341836)
> +++ /usr/src/stand/common/metadata.c (working copy)
> @@ -322,15 +322,10 @@
> #if defined(LOADER_FDT_SUPPORT)
> /* Copy out FDT */
> fdtp =3D 0;
> -#if defined(__powerpc__)
> - if (getenv("usefdt") !=3D NULL)
> + size =3D fdt_copy(addr);
> + fdtp =3D addr;
> + addr =3D roundup(addr + size, PAGE_SIZE);
> #endif
> - {
> - size =3D fdt_copy(addr);
> - fdtp =3D addr;
> - addr =3D roundup(addr + size, PAGE_SIZE);
> - }
> -#endif
>=20
> kernend =3D 0;
> kfp =3D file_findfile(NULL, kern64 ? "elf64 kernel" : "elf32 =
kernel");
>=20
> (So the previous usefdt=3D1 behavior is automatic.)
>=20
> Booting is then automatic, with smp working.
>=20
> So I expect that when -r341614 (that made set usefdt=3D1 work) is =
merged to
> stable/12 that the same will be true for the additional updates there.
>=20
>=20
> I will note the following (adjusted from a previously reported
> experiment with manual usefdt=3D1 use):
>=20
> 1. After a while the fans get louder.
>=20
> 2. When shutting down the system once the fans are louder,
>=20
> Waiting (max 60 seconds) for system thread `bufdaemon' to stop...
> Waiting (max 60 seconds) for system thread `bufspacedaemon-1' to =
stop...
> Waiting (max 60 seconds) for system thread `bufspacedaemon-0' to =
stop...
>=20
> all time out.
>=20
> So there seems to be some type of a problem.
Experiments with booting and then shutting down somewhat
later show that the bug*daemon time-outs during shutdown
also happen without the fan's becoming loud first. They
seem independent at this point.
I'll keep experimenting on occasion.
Oh: I did not mean to imply that only the -0 and the -1 of the
various bufspaceddaemon-* timeout. I just did not list them all.
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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