If you applied the wiki steps which are about initcpio hooks to update kernel files in /boot/efi directory that would be happened. The hook doesnt work anymore and you must edit the hook that updates vmlinuz-arch.efi.Last week i experienced a similar problem fortunately i've discovered the error. For doin this work you can simply install grub-efi
Sorry, I forgot to mention that I don't have an initramfs and my custom kernel package directly updates the efi file. This is (almost) definitely a kernel bug and unlikely to be a configuration problem. I am just looking for others experiencing the problem and information about potential patches.
]]>Hardware/setup: https://gist.github.com/4026650
Updating the efi entry (and signature) changed nothing.
Interestingly, appending verbose to the boot params produced no output. This may indicate a graphics problem instead of a the USB initialization problem experienced by the lwn reader.
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