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[bug #30601] Grub hangs after loading kernel on intel machine with uefi

From: Jeffrey Griffin
Subject: [bug #30601] Grub hangs after loading kernel on intel machine with uefi bios
Date: Thu, 23 Dec 2010 10:40:52 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.215 Safari/534.10

Follow-up Comment #1, bug #30601 (project grub):

Same here on an ASUS U35Jc laptop, using grub trunk, experimental, or
newreloc. Crashes after issuing the command `linux (hd0,msdos6)/kernel`. With
`set debug=linux`, the output for grub trunk and grub newreloc is:
real_size=2000, prot_size=2e200, mmap_size=2000
real_mode_mem=147ff800, real_mode_pages=8, prot_mode_mem=100000,

I have determined that the crash in grub_cmd_linux occurs at: 
grub_memset (params, 0, GRUB_LINUX_CL_END_OFFSET);
grub_memcpy (&params->setup_sects, &lh.setup_sects, sizeof (lh) - 0x1F1);
which doesn't look too promising.

Note that for grub-1.98, the linux loader succeeds, but the `initrd` or
`boot` commands hang once again. The output after `set debug=all; linux
(hd0,6)/kernel;` for grub-1.98 is:
real_size=2000, prot_size=2e2000, mmap_size=4000
physical_start=8000, physical_end=6f000
trying to allocate 6 pages at 69000
real_mode_mem=69000, real_mode_pages=6, prot_mode_mem=100000,
  [Linux-bzImage, setup=0x3400, size=0x2e19d0]

For grub-1.98 the crash in loader/i386/efi/linux.c's grub_cmd_initrd happens
at the grub_file_read.


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