On Sun, 24 Mar 2024 22:53:47 +0200 Ard Biesheuvel <ardb@xxxxxxxxxx> wrote: > > > Thanks. > > > > > > I pushed another branch > > > > > > https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/log/?h=efi-clayton-3 > > > > > > which has a proper fix for the issue that you found. > > > > > > As it turns out, the compat mixed mode (with handover protocol) was > > > > > > broken from the beginning, and the change you identified just happened > > > > > > to trigger it on your hardware. > > > > > > Tested and fixes booting on my Bay Trail tablet and NUC. Thanks for fixing this! > > > > Tested-by: Clayton Craft <clayton@xxxxxxxxxxxxx> So... maybe my testing wasn't as thorough as I thought, OR I am experiencing an unrelated problem. In any case, I'm having some difficulty figuring out what to blame. When using this patch on the 6.6 LTS: 1) kernel seems to panic right after displaying `disabling bootcon [efifb0]`. I determined that it's panicking by setting `panic=-1` and seeing it reboot after showing that message. I can work around it by setting `keep_bootcon`, but that's not ideal. 2) kernel complains about no root (from initrd). I can work around this by passing `initrd=my-initramfs` on the kernel cmdline. I haven't tried any newer kernels yet. The second issue above makes me wonder if your patch related to args might be to blame, but I'm not sure. Any help poking around further would be greatly appreciated :) -Clayton
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