On Wed, Jan 11, 2023 at 08:30:20AM +0000, Emmanuel Dreyfus wrote: > An interesting problem on an all-in-one HP PC. Booting > NetBSD-10.0_BETA/amd64 (or prior versions) works fine until the > kernel starts displaying its messages. At that point the screen > turns dark.
I patched bootx64.efi to comment out the vbe_commit() call, the screen does not go dark, but system still crashes. By commenting out the uefi_call_wrapper() for ExitBootServices I can printf up to the startprog64() call, then the bootstrap jump into assembly code, and it is much more difficult to figure what is going on. All I can say is that startprog64() arguments do not look insane. I am looking for debug hints. Is there some sample code somewhere that calls UEFI Print method from assembly? Any other suggestion? -- Emmanuel Dreyfus m...@netbsd.org
