Date: Mon, 10 Feb 2020 17:41:02 -0800 From: Mark Millard <marklmi@yahoo.com> To: bob prohaska <fbsd@www.zefox.net>, Klaus K??chemann <maciphone2@googlemail.com> Cc: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: RPI4 Install r357606 test 09.02.2020 failed Message-ID: <3F2D7E29-2377-446F-B84C-E4AD72E242F6@yahoo.com> In-Reply-To: <20200211011450.GD19140@www.zefox.net> References: <202002092026.019KQXLF021366@mail.karels.net> <4551CAE8-08DA-463F-876C-DD1BBAA5D7C5@bitblocks.com> <D11F4E71-FF1F-4C13-8F3C-A197AB372E3E@yahoo.com> <20200210192602.GA19140@www.zefox.net> <DA298860-7C16-4B97-A3AE-9D3E6220E3D1@googlemail.com> <20200210200910.GB19140@www.zefox.net> <FCC826C4-C11D-43A6-B034-EE58921B6B06@googlemail.com> <20200211011450.GD19140@www.zefox.net>
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On 2020-Feb-10, at 17:14, bob prohaska <fbsd at www.zefox.net> wrote: > On Tue, Feb 11, 2020 at 12:18:42AM +0100, Klaus K??chemann wrote: >>=20 >>=20 >>=20 >> Hi Bob, old proud RPI4-owner ;-) , >>=20 > [for pedantry's sake, this is a Pi3....] >=20 >=20 >> according to your request I???ve updated the Wiki (at the bottom) = with details >> How you can get back to previous kernel while debugging . >> https://wiki.freebsd.org/arm/Raspberry%20Pi#RPI4 >>=20 >=20 > Looks as if the loader path defaults are a little trickier than I = realized: >=20 > OK=20 > OK load kernel > /boot/kernel/kernel text=3D0x987ddc data=3D0x1905a8 data=3D0x0+0x79d260 = syms=3D[0x8+0x10bd20+0x8+0x130451] > OK unload kernel > OK load disk0s2:/boot/kernel.spare > don't know how to load module 'disk0s2:/boot/kernel.spare' > OK=20 >=20 > However, > OK load disk0s2:/boot/kernel.spare/kernel > disk0s2:/boot/kernel.spare/kernel text=3D0x9877bc data=3D0x1905a8 = data=3D0x0+0x79d260 syms=3D[0x8+0x10bc60+0x8+0x130430] > worked. Alas, that kernel stops as before, with: > OK load disk0s2:/boot/kernel.spare/kernel > disk0s2:/boot/kernel.spare/kernel text=3D0x9877bc data=3D0x1905a8 = data=3D0x0+0x79d260 syms=3D[0x8+0x10bc60+0x8+0x130430] > OK boot > Using DTB provided by EFI at 0x7ef6000. > EFI framebuffer information: > addr, size 0x3eaf0000, 0x10a800 > dimensions 656 x 416 > stride 656 > masks 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 >=20 > Progress stops at this point. >=20 > Looks like the problem is something other than the kernel. > The power supply pins are at 4.88 volts when boot hangs. > That would be within spec for USB (5.0 plus or minus .25 > volt) _except_ that the Pi3 is spec'd for 5.1 volts... >=20 > That puts me within meter error of undervoltage. >=20 If you recently followed the instructions to use: 2. https://github.com/raspberrypi/firmware/tree/master/boot/overlays -> = overwrite overlays-folder on uSD:=20 3. https://github.com/raspberrypi/firmware/tree/master/boot -> copy the = following files to uSD:=20 instead of what is in sysutils/rpi-firmware and sysutils/u-boot-rpi4 then you likely picked up bad materials. https://github.com/raspberrypi/firmware/issues shows people reporting that things quit working for what appear to be (at times) power problems. This seems to have been going on for days. I do not recommend using https://github.com/raspberrypi/firmware/tree/ materials unless you know specific good versions to pick (say a specific Tag selection). I also do not recommend copying only some of the files from https://github.com/raspberrypi/firmware/tree/master/boot/ and mixing them with files of other vintages. They are not designed to mix and match arbitrarily as far as I can tell. I have stuck with sysutils/rpi-firmware and sysutils/u-boot-rpi4 = materials of a fixed vintage. In part is this so that the kernel explorations are what vary, since -r356767 works and -r356776 does not for the same set of other materials. It is already complicated enough trying to find a way to isolate what is leading to PSCI version 0 instead of 2 based on switching kernels (and only the kernels). =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)
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