Unable to boot with latest firmware on RPI4

[Nopel2020]

On a RPI4 with 4GB with the latest kernel (5.4.65-V8+) and the latest firmware (086d9d9) my RPI4 freezes on the rainbow screen.

The only files from the firmware I'm using are fixup4cd.dat and start4cd.elf. After replacing just these two files with the ones from the latest commit before that (a490197), the RPI4 is booting normally again.

With the latest firmware files, the freeze is reproduceable.

• Which model of Raspberry Pi?
  RPI4, 4GB

• Which OS and version (cat /etc/rpi-issue)?
  64bit Debian Buster with self-compiled 64bit 5.4.65 kernel (but I don't think this is relevant, the Pi freezes before it loads anything from the OS)

[pelwell]

I don't think this is relevant, the Pi freezes before it loads anything from the OS

What makes you say that? Are you capturing the output from the firmware over the UART?

[Nopel2020]

Because it freezes on the rainbow screen. Does it load anything from the OS while the rainbow screen is still visible?

[pelwell]

Yes - it's hard for the kernel to display raspberries and start to output messages until its been loaded.

[pelwell]

Do you have any custom settings in config.txt?

[mikey1963]

Mine frozen too, latest rpi-update, running 64bit kernel.

…

--- Regards, Mr Michael A Smith My apologies in advance for any errors or inaccuracies, mobile email and my brain are both prone to them.

________________________________ From: Nopel2020 <notifications@github.com> Sent: Tuesday, September 15, 2020 8:45:43 PM To: raspberrypi/firmware <firmware@noreply.github.com> Cc: Subscribed <subscribed@noreply.github.com> Subject: Re: [raspberrypi/firmware] Unable to boot with latest firmware on RPI4 (#1467) Because it freezes on the rainbow screen. Does it load anything from the OS while the rainbow screen is still visible? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<#1467 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AHHYEUDLFZRRYQXCF3UCCWTSF676PANCNFSM4RNUOGAA>.

[Nopel2020]

Ah ok, sorry, then I'm not sure if it's loading something from the OS.

This is my full config.txt:
gpu_mem=16
hdmi_ignore_cec=1
hdmi_force_hotplug=1
hdmi_group=1
hdmi_mode=4
initramfs initrd8.img followkernel

[pelwell]

@mikey1963 are you also an initramfs user?

[mikey1963]

No, Only changes to standard are; gpu_mem=256 dtoverlay=i2c-rtc,ds3231 enable_uart=1 arm_64bit=1 Did the rpi-update this evening and it hangs on boot. I’m headless so can’t give you much more info, sorry.

…

--- Regards, Mr Michael A Smith My apologies in advance for any errors or inaccuracies, mobile email and my brain are both prone to them.

________________________________ From: Phil Elwell <notifications@github.com> Sent: Tuesday, September 15, 2020 8:50:49 PM To: raspberrypi/firmware <firmware@noreply.github.com> Cc: Mike Smith <mike@realtimetesting.co.uk>; Mention <mention@noreply.github.com> Subject: Re: [raspberrypi/firmware] Unable to boot with latest firmware on RPI4 (#1467) @mikey1963<https://github.com/mikey1963> are you also an initramfs user? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#1467 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AHHYEUHIJEZ6SX2W4ADOC5LSF7ARTANCNFSM4RNUOGAA>.

[pelwell]

Oh well - we'll investigate tomorrow.

[Nopel2020]

Using the next-to-last firmware files is a workaround, so no rush. Thanks for looking into this!

[pelwell]

I have to - that commit has my fingerprints all over it.

[mikey1963]

That’s what makes it fun :)

…

--- Regards, Mr Michael A Smith My apologies in advance for any errors or inaccuracies, mobile email and my brain are both prone to them.

________________________________ From: Phil Elwell <notifications@github.com> Sent: Tuesday, September 15, 2020 9:12:21 PM To: raspberrypi/firmware <firmware@noreply.github.com> Cc: Mike Smith <mike@realtimetesting.co.uk>; Mention <mention@noreply.github.com> Subject: Re: [raspberrypi/firmware] Unable to boot with latest firmware on RPI4 (#1467) I have to - that commit has my fingerprints all over it. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#1467 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AHHYEUGGNUTRZZ4POMHPYCLSF7DCLANCNFSM4RNUOGAA>.

[Nopel2020]

FWIW, I'm running the exact same setup on an RPI3B, and almost identical (but 32bit) on an old RPI1 and some RPI0Ws. They are all booting fine, only the RPI4 is affected.

[pelwell]

If it's the change I think it is then the code path is only visited when arm_64bit=1, but the 64-bit 3B non-failure is an interesting data point.

[yvoy]

Same issue on RPI4 , need to temporaly disable arm_64bit=1