Bug#1098661: linux: fails to boot on VisionFive 2: Unhandled exception: Store/AMO access fault
On 2025-02-23 22:24, Bastian Blank wrote:
> On Sun, Feb 23, 2025 at 10:07:33PM +0100, Aurelien Jarno wrote:
> > On 2025-02-23 21:45, Bastian Blank wrote:
> > > On Sat, Feb 22, 2025 at 11:59:38AM +0100, Aurelien Jarno wrote:
> > > > Starting with version 6.13.3-1~exp1, the riscv64 kernel is shipped as a
> > > > EFI binary with the payload compressed with zstd (using the EFI_ZBOOT
> > > > config option). In addition to breaking non-EFI systems, this change
> > > > simply prevents the kernel to boot on a VisionFive 2 board:
> > > Please re-assign to the bootloader package.
> > I disagree. The bootloader is u-boot and while it might be fixable at
> > this level, debian should be bootable on the original firmware.
>
> It needs to be fixed nevertheless. What do you mean with "original
> firmware"? What is this setup anyway?
The setup is:
- Vision Five 2 board: https://www.starfivetech.com/en/site/boards
- Using U-Boot as the firmware
- Booting is done through grub (grub-efi-riscv64 package)
- Installed with debian-installer
> > BTW, you never explained the reason for your changes. It only brings
> > smaller kernel nothing more. And a working kernel is better than a
> > smaller kernel that does not work.
>
> Smaller images, so often faster load times.
Smaller image is nice, but not mandatory. Other architectures also use
uncompressed kernel.
> Feature parity between
> architectures.
Feature parity, do you mean only with arm64 and loong64? EFI_ZBOOT is
not enabled on other architectures.
> Fullfils the interface (U)EFI and works fine in edk2.
Just like the kernel before your change.
> As I currently try to assemble a list of all the interfaces the kernel
> fullfils: How would you define this? Running this in u-boot is not
> (U)EFI, but something more strict, or there is a bug in the kernel
> decompressor.
The uncompressed kernel is a perfectly valid EFI binary that can be run
under U-Boot with either Distro Boot and Grub or with the loadefi
command. It can also be run under EDK2 either directly or also through
Grub.
--
Aurelien Jarno GPG: 4096R/1DDD8C9B
aurelien@aurel32.net http://aurel32.net
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