Messages in this thread | | | From | Hans de Goede <> | Subject | [PATCH 5.5 regression fix 0/2] efi/libstub: Fix mixed-mode crash at boot | Date | Thu, 12 Dec 2019 11:31:56 +0100 |
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Hi All,
Commit 0d95981438c3 ("x86: efi/random: Invoke EFI_RNG_PROTOCOL to seed the UEFI RNG table") causes drivers/efi/libstub/random.c to be used on x86 for the first time and some of the code in that file does not deal properly with mixed-mode setups causing a crash at boot on mixed-mode devices.
The first patch in this series fixes this and is the regression-fix from $subject.
While looking into this I did a quick search for other cases of the same problem in the libstub code and I found the same issue in the handling of LILO-style file= kernel commandline arguments, which I guess are not used that often because AFAICT we have no bug report for these not working in mixed-mode. The second patch fixes this, this is a pre-existing problem and not a 5.5 regression, still we should probably also include this fix in 5.5.
Regards,
Hans
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