[U-Boot] [PATCH v0 13/20] efi_loader: use proper device-paths for partitions
Mark Kettenis
mark.kettenis at xs4all.nl
Sun Aug 6 14:28:43 UTC 2017
> Date: Sun, 6 Aug 2017 15:16:09 +0200 (CEST)
> From: Mark Kettenis <mark.kettenis at xs4all.nl>
>
> Things are already broken before that commit though, so there is
> another problem. I'll see if I can figure out what it is...
data abort
pc : [<7ef59160>] lr : [<7ef59118>]
reloc pc : [<4a003160>] lr : [<4a003118>]
sp : 7af2b820 ip : 7af69635 fp : 7ef5aee4
r10: 00000005 r9 : 7af35ee0 r8 : 7efb4490
r7 : 7af695e8 r6 : 7af69620 r5 : 0000005c r4 : 7af2b828
r3 : 7efae477 r2 : 0000005c r1 : 0000002f r0 : 00000000
Flags: nzCv IRQs off FIQs off Mode SVC_32
addr2line -e u-boot.bin 0x4a003160
/home/kettenis/tmp/rclark/u-boot/include/efi_loader.h:204
which is the ascii2unicode() function which is used in
efi_disk_add_dev() and indeed does 16-bit stores to potentiaslly
unaligned memory. And yes, adding __packed to struct
efi_device_file_path will trigger the unaligned access in this case.
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