Date: Thu, 11 Jun 2020 09:33:31 -0700 From: David Wolfskill <david@catwhisker.org> To: Mark Johnston <markj@freebsd.org> Cc: current@freebsd.org Subject: Re: Panic "vm_fault_lookup: fault on nofault entry" amd64 r362008 -> r362045 Message-ID: <20200611163331.GC1392@albert.catwhisker.org> In-Reply-To: <20200611162417.GD32928@raichu> References: <20200611130500.GW1392@albert.catwhisker.org> <20200611132129.GL48478@kib.kiev.ua> <20200611132924.GX1392@albert.catwhisker.org> <20200611134658.GM48478@kib.kiev.ua> <20200611154456.GY1392@albert.catwhisker.org> <20200611155143.GN48478@kib.kiev.ua> <20200611161156.GB1392@albert.catwhisker.org> <20200611162417.GD32928@raichu>
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--Mfj4UzsZ9EA9tSs4 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jun 11, 2020 at 12:24:17PM -0400, Mark Johnston wrote: > ... > > Unfortunately, I ran out of time to do further experiments for now; I'll > > need to do some work-related things for a while, but thought that this > > might at least provide some useful information. > >=20 > > Here is what I commented out: > >=20 > > g1-55(12.1-S)[2] grep KIB boot/loader.conf > > # KIB coretemp_load=3D"YES" > > # KIB iwn5000fw_load=3D"YES" > > # KIB linux_load=3D"YES" > > # KIB nvidia-modeset_load=3D"YES" > > # KIB cuse_load=3D"YES" > > # KIB geom_eli_load=3D"YES" > > # KIB filemon_load=3D"YES" >=20 > Thanks. I'm able to reproduce a somewhat similar problem in bhyve: if I > preload iwn5000fw.ko, a r362045 kernel fails to boot very early with >=20 > ---<<BOOT>>--- > ACPI: Failed to map RSDT > APIC: Could not find any APICs. > panic: running without device atpic requires a local APIC Ah -- excellent (that you are able to pretty much reproduce this). And it explains why my build machine wasn't affected: it doesn't use wireless drivers at all. > Reverting r362035 allows the kernel to boot again, but so does adding a > few printf() calls to the pmap and ACPI code. Kinky. :-} Peace, david --=20 David H. Wolfskill david@catwhisker.org Someone who suggests he can "pardon himself" calls for "LAW & ORDER" -- rig= ht. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --Mfj4UzsZ9EA9tSs4 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEE4owz2QxMJyaxAefyQLJg+bY2PckFAl7iXNtfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEUy OEMzM0Q5MEM0QzI3MjZCMTAxRTdGMjQwQjI2MEY5QjYzNjNEQzkACgkQQLJg+bY2 PcnNZggAjAanuX1NhaLzQMH/lBmelYDFlFnoG9lRiLbaC1Wbr+chsGzLnj4igm0a uD7WzmZwshA/Wo5LTXEzzkJaXewTYmYdV0PpVanve7r7z7YzwSV01QBsZq3xlJff DymxhWOIwI1Dij/XambabuIttGaH7/x6QcY1WlSS9Wy0zLwD1ovMFsbmS3DC6euk uxX4cExjMzDJDjPDl6mTM5JKEHQdUr6T9JNTV2WOFSkDvOiVGB2ObzgaJP9cobPw 110zUxyrdOimecgTr2s/rKV0EdQSr4Wp7o/5fhFgCYOOkrOiNX8h3oLMHlBjXpCi uZDkBdmkveTgNj3pRZM/abwHDLVnTA== =zlg1 -----END PGP SIGNATURE----- --Mfj4UzsZ9EA9tSs4--
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