Tue 26 Apr 2011 02:26:00 AM UTC, original submission:
UEFI grub2 1.99-rc2 with UEFI (a thinkpad w520 with 16GB memory, UEFI fireware 2.0)
I added UEFI shell (from http://tianocore.git.sourceforge.net/git/gitweb.cgi?p=tianocore/edk2;a=blob_plain;f=EdkShellBinPkg/FullShell/X64/Shell_Full.efi;hb=HEAD ) to grub.conf (see the last menu entry in the attached grub.conf file)
How to reproduce:
Boot into grub (grub is my default /EFI/Boot/bootx64.efi)
Select the "UEFI Shell" option
after UEFI shell loads, exit it
in grub menu, select "UEFI Shell" option again
this time, UEFI shell does not start, instead I see the following:
/EndEntire
file path /ACPI(a0341d0,0)/PCI(2,1f)/UnknownMessaging(12)/HD(1,800,64000,4e50fdc69bd3204c,ab,79)/File(\EFI)/File(shellx64.efi)
/EndEntire
alloc magic is broken at 0x5b398700
after turning on debug=all, this is what I get after repeating the above:
fs/fat.c:429: fat_size=32, next_cluster=9974
... (25 more lines like the above)
kern/disk.c:330: Closing 'hd1'.
script/lexer.c:307: token 259 text [
]
script/script.c:50: malloc 0x46b76020
script/script.c:50: malloc 0x493b3f80
script/lexer.c:307: token 0 text []
script/script.c:50: malloc 0x46f9e000
script/script.c:50: malloc 0x45fa2a20
alloc magic is broken at 0x46362e00
Aborted. Press any key to exit.
this "alloc magic is broken" error has happened to me numerous times (mostly after I edited a menu entry, and try to boot the modified one with F10), but this is the only one I can consistently reproduce
let me know if you need more info
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