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Date:	Mon, 11 Aug 2014 10:31:22 +0100
From:	"Jan Beulich" <>
To:	"Andy Lutomirski" <>
Cc:	"Kees Cook" <>,
	"Will Drewry" <>,
	"Frederic Weisbecker" <>,
	"Denys Vlasenko" <>,
	"X86 ML" <>, "Alexei Starovoitov" <>,
	"Denys Vlasenko" <>,
	"Oleg Nesterov" <>,
	"Linux Kernel Mailing List" <>,
	"H. Peter Anvin" <>
Subject: Re: [PATCH 4/5] x86: entry_64.S: always allocate complete
 "struct pt_regs"

>>> On 11.08.14 at 11:07, <> wrote:
> How does one test the entry CFI annotations?  The best that I know of
> is to single-step through using gdb attached to qemu and see whether
> backtraces seem to work.

Or have the kernel generate a backtrace from a suitable location and
check that the backtrace is correct (of course provided you have Dwarf
stack unwinding support in your kernel).


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