On Wed, Jul 26, 2023 at 11:54:01AM +0200, Petr Tesarik wrote:
> From: Torsten Duwe <duwe@xxxxxxx>
>
> When initrd is loaded low, the secondary kernel fails like this:
>
> INITRD: 0xdc581000+0x00eef000 overlaps in-use memory region
>
> This initrd load address corresponds to the _end symbol, but the
> reservation is aligned on PMD_SIZE, as explained by a comment in
> setup_bootmem().
>
> It is technically possible to align the initrd load address accordingly,
> leaving a hole between the end of kernel and the initrd, but it is much
> simpler to allocate the initrd top-down.
>
> Fixes: 838b3e28488f ("RISC-V: Load purgatory in kexec_file")
> Signed-off-by: Torsten Duwe <duwe@xxxxxxx>
> Signed-off-by: Petr Tesarik <petr.tesarik.ext@xxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
Trying to align it might be worthwhile, but the simple fix makes sense
for now & w.r.t backporting.
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Thanks,
Conor.
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