Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1686497

Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf)

From Josh Poimboeuf <jpoimboe@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf)
Date 2017-07-13 14:30 +0200
Message-ID <u2LpM-5AM-5@gated-at.bofh.it> (permalink)
References (3 earlier) <u2GzL-2yI-3@gated-at.bofh.it> <u2I8y-3lP-5@gated-at.bofh.it> <u2I8y-3lP-3@gated-at.bofh.it> <u2IrT-3Iw-5@gated-at.bofh.it> <u2Lg6-5xB-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Thu, Jul 13, 2017 at 07:17:55AM -0500, Josh Poimboeuf wrote:
> BTW, while we're throwing out ideas for this, here's another idea,
> though it's almost certainly not a good one :-)
> 
> For user space stack unwinding, the kernel could emulate what the kernel
> 'guess' unwinder does by scanning the user space stack and returning all
> the text addresses it finds.
> 
> The results wouldn't be 100% accurate, but they could end up being
> useful over time.

And to expound further on the bad idea, maybe the "bad" addresses could
be filtered out somehow in post-processing (insert lots of hand waving).

-- 
Josh

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-11 17:40 +0200
  Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-12 10:30 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-12 16:50 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-12 21:30 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-14 19:20 +0200
  Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andres Freund <andres@anarazel.de> - 2017-07-12 23:50 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 00:40 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andres Freund <andres@anarazel.de> - 2017-07-13 00:40 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 00:50 +0200
          Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andres Freund <andres@anarazel.de> - 2017-07-13 01:00 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Peter Zijlstra <peterz@infradead.org> - 2017-07-13 09:20 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Peter Zijlstra <peterz@infradead.org> - 2017-07-13 11:00 +0200
          Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-13 11:20 +0200
            Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 14:20 +0200
              Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 14:30 +0200
                Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 14:40 +0200
                Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-14 10:40 +0200
              Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-14 10:30 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Peter Zijlstra <peterz@infradead.org> - 2017-07-13 11:00 +0200
  Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andi Kleen <andi@firstfloor.org> - 2017-07-13 00:40 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 00:50 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andi Kleen <andi@firstfloor.org> - 2017-07-13 06:30 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 15:20 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-13 11:30 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andy Lutomirski <luto@kernel.org> - 2017-07-13 01:30 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Mike Galbraith <efault@gmx.de> - 2017-07-13 05:10 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andi Kleen <andi@firstfloor.org> - 2017-07-13 06:20 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Mike Galbraith <efault@gmx.de> - 2017-07-13 06:40 +0200
          Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andi Kleen <andi@firstfloor.org> - 2017-07-13 06:50 +0200
            Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Mike Galbraith <efault@gmx.de> - 2017-07-13 07:30 +0200
            Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Jiri Kosina <jikos@kernel.org> - 2017-07-13 14:10 +0200

csiph-web