Re: [PATCH 00/14] x86/unwind/orc: ORC fixes

From: Peter Zijlstra
Date: Thu Mar 12 2020 - 15:15:49 EST


On Thu, Mar 12, 2020 at 12:30:19PM -0500, Josh Poimboeuf wrote:
> Several ORC unwinder cleanups, fixes, and debug improvements.
>
> Jann Horn (1):
> x86/entry/64: Fix unwind hints in rewind_stack_do_exit()
>
> Josh Poimboeuf (12):
> x86/dumpstack: Add SHOW_REGS_IRET mode
> objtool: Fix stack offset tracking for indirect CFAs
> x86/entry/64: Fix unwind hints in register clearing code
> x86/entry/64: Fix unwind hints in kernel exit path
> x86/entry/64: Fix unwind hints in __switch_to_asm()
> x86/unwind/orc: Convert global variables to static
> x86/unwind: Prevent false warnings for non-current tasks
> x86/unwind/orc: Prevent unwinding before ORC initialization
> x86/unwind/orc: Fix error path for bad ORC entry type
> x86/unwind/orc: Fix premature unwind stoppage due to IRET frames
> x86/unwind/orc: Add more unwinder warnings
> x86/unwind/orc: Add 'unwind_debug' cmdline option
>
> Miroslav Benes (1):
> x86/unwind/orc: Don't skip the first frame for inactive tasks

Looks like good stuff..

Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>