Re: [crash, bisected] Re: [PATCH 3/4] x86_64: Fold pda into per cpuarea

[H. Peter Anvin]

Eric W. Biederman wrote:
> > The zero-based PDA mechanism requires the introduction of a new ELF segment
> > based at vaddr 0 which is sufficiently unusual that it wouldn't surprise me if
> > its triggering some toolchain bug.
>
> Agreed.  Given the previous description my hunch is that the bug is occurring
> during objcopy.  If vmlinux is good and the compressed kernel is bad.

Actually, it's not all that unusual... it's pretty common in various 
restricted environments.  That being said, it's probably uncommon for 
*64-bit* code.

	-hpa
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