[Crash-utility] [PATCH v5 0/4] arm64: more improvement of bt -f

Changes in v5: * add a workaround against an exceptional case of backtracing (See "FIXME" in arm64_back_trace_cmd()) * update comments in arm64_unwind_frame() * add patch[4/4] Changes in v4: * use arm64_on_irq_stack() to check whether or not we are on IRQ stack. mistakendly used 'flags & IRQ_STACKS'. * fix a bug at critical timing around switching stacks in arm64_unwind_frame(). We need to take are of a possibility that we get back to process stack, but fp still points to IRQ stack. * add patch[2/3] This should be applied even withtout patch[1/3] * add patch[3/3] applying this patch would be a discussion. AKASHI Takahiro (4): arm64: more improvement of bt -f arm64: find a correct starting stackframe at bt arm64: correct a PC shown in bt arm64: add VHE support arm64.c | 603 ++++++++++++++++++++++++++++++++++++++++++++-------------------- defs.h | 6 + 2 files changed, 423 insertions(+), 186 deletions(-) -- 2.9.0