Re: [PATCH v6 1/2] x86/kexec: Build identity mapping for EFI systab and ACPI tables
From: Peter Zijlstra
Date: Tue May 14 2019 - 09:56:54 EST
On Tue, May 14, 2019 at 08:58:35PM +0800, Dave Young wrote:
> Hmm, it seems caused by some WIP branch patches, I suspect below:
Grmbl.. Ingo, can you zap all those WIP branches, please? They mostly
just get in the way of things. If you want to run them, merge them in a
private branch or something.
> commit 124d6af5a5f559e516ed2c6ea857e889ed293b43
> x86/paravirt: Standardize 'insn_buff' variable names
> The suspicious line is "per_cpu(insn_buff, cpu) = insn_buff;"
Yah, unfortunatly per-cpu variables live in the same namespace as normal
variables and so the above is incorrect, because the local @insn_buffer
variable shadows the global per-cpu symbol and very weird things will
This is of course consistent with C rules, where everything lives in the