Mantas found that after commit 4bf7111f5016 ("x86/efi: Support initrd
loaded above 4G"), the kernel freezes at the earliest possible moment
when trying to boot via UEFI on Asus laptop.There are buggy EFI implementations: with EFI run time, kernel need to load file with 512bytes alignment when buffer is above 4G. So revert to old way to load initrd on first try, second try will use above 4G buffer when initrd is more than 2G and does not fit under 4G. Reported-by: Mantas Mikulėnas <[email protected]> Tested-by: Anders Darander <[email protected]> Signed-off-by: Yinghai Lu <[email protected]> --- arch/x86/boot/compressed/eboot.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) Index: linux-2.6/arch/x86/boot/compressed/eboot.c =================================================================== --- linux-2.6.orig/arch/x86/boot/compressed/eboot.c +++ linux-2.6/arch/x86/boot/compressed/eboot.c @@ -1032,7 +1032,6 @@ struct boot_params *make_boot_params(str int i; unsigned long ramdisk_addr; unsigned long ramdisk_size; - unsigned long initrd_addr_max; efi_early = c; sys_table = (efi_system_table_t *)(unsigned long)efi_early->table; @@ -1095,15 +1094,18 @@ struct boot_params *make_boot_params(str memset(sdt, 0, sizeof(*sdt)); - if (hdr->xloadflags & XLF_CAN_BE_LOADED_ABOVE_4G) - initrd_addr_max = -1UL; - else - initrd_addr_max = hdr->initrd_addr_max; - status = handle_cmdline_files(sys_table, image, (char *)(unsigned long)hdr->cmd_line_ptr, - "initrd=", initrd_addr_max, + "initrd=", hdr->initrd_addr_max, + &ramdisk_addr, &ramdisk_size); + + if (status != EFI_SUCCESS && + hdr->xloadflags & XLF_CAN_BE_LOADED_ABOVE_4G) + status = handle_cmdline_files(sys_table, image, + (char *)(unsigned long)hdr->cmd_line_ptr, + "initrd=", -1UL, &ramdisk_addr, &ramdisk_size); + if (status != EFI_SUCCESS) goto fail2; hdr->ramdisk_image = ramdisk_addr & 0xffffffff; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
