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Re: [RFC][BUG] tracer: Fails to work

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [RFC][BUG] tracer: Fails to work
Date 2016-01-28 16:40 +0100
Message-ID <qVWPU-5sX-13@gated-at.bofh.it> (permalink)
References (1 earlier) <qVUXM-43r-17@gated-at.bofh.it> <qVVh9-4b8-29@gated-at.bofh.it> <qVVTQ-4Lm-13@gated-at.bofh.it> <qVW3w-4OQ-21@gated-at.bofh.it> <qVWdd-4Sp-33@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Jan 28, 2016 at 02:53:53PM +0000, Mathieu Desnoyers wrote:
> On x86, many BIOS wipe the memory content even after a warm reset :(
> The most reliable solution I found on x86 is to use kexec() to
> boot into a new kernel, mount the DAX filesystem again and read the
> buffers from there.

kexec() is tricky when the kernel is still prefectly fine, I doubt it'll
work when I've hosed it properly :/

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Thread

[RFC][BUG] tracer: Fails to work Peter Zijlstra <peterz@infradead.org> - 2016-01-28 09:10 +0100
  Re: [RFC][BUG] tracer: Fails to work Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-01-28 14:40 +0100
    Re: [RFC][BUG] tracer: Fails to work Peter Zijlstra <peterz@infradead.org> - 2016-01-28 15:00 +0100
      Re: [RFC][BUG] tracer: Fails to work Steven Rostedt <rostedt@goodmis.org> - 2016-01-28 15:20 +0100
      Re: [RFC][BUG] tracer: Fails to work Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-01-28 15:40 +0100
        Re: [RFC][BUG] tracer: Fails to work Peter Zijlstra <peterz@infradead.org> - 2016-01-28 15:50 +0100
          Re: [RFC][BUG] tracer: Fails to work Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-01-28 16:00 +0100
            Re: [RFC][BUG] tracer: Fails to work Peter Zijlstra <peterz@infradead.org> - 2016-01-28 16:40 +0100
              Re: [RFC][BUG] tracer: Fails to work Steven Rostedt <rostedt@goodmis.org> - 2016-01-28 17:00 +0100

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