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Re: [PATCH] of: introduce event tracepoints for dynamic device_node lifecyle

From Steven Rostedt <rostedt@goodmis.org>
Newsgroups linux.kernel
Subject Re: [PATCH] of: introduce event tracepoints for dynamic device_node lifecyle
Date 2017-04-20 04:40 +0200
Message-ID <tyaaJ-3bq-3@gated-at.bofh.it> (permalink)
References <txplv-7EF-1@gated-at.bofh.it> <txLm2-4su-3@gated-at.bofh.it> <txML7-5kl-1@gated-at.bofh.it> <ty7cR-1dY-15@gated-at.bofh.it>
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On Wed, 19 Apr 2017 16:27:10 -0700
Tyrel Datwyler <turtle.in.the.kernel@gmail.com> wrote:

> # echo stacktrace > /sys/kernel/debug/tracing/trace_options
> # cat trace | grep -A6 "/pci@800000020000018"

Just to let you know that there is now stacktrace event triggers, where
you don't need to stacktrace all events, you can pick and choose. And
even filter the stack trace on specific fields of the event.

 # cd /sys/kernel/debug/tracing
 # echo "stacktrace if common_pid == $$ && reason == 3" \
   > events/tlb/tlb_flush/trigger

 # cat trace
            bash-1103  [003] ...1  1290.100133: tlb_flush: pages:-1 reason:local mm shootdown (3)
            bash-1103  [003] ...2  1290.100140: <stack trace>
 => copy_process.part.39
 => _do_fork
 => SyS_clone
 => do_syscall_64
 => return_from_SYSCALL_64

-- Steve

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Thread

[PATCH] of: introduce event tracepoints for dynamic device_node lifecyle Tyrel Datwyler <tyreld@linux.vnet.ibm.com> - 2017-04-18 02:40 +0200
  Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Tyrel Datwyler <tyreld@linux.vnet.ibm.com> - 2017-04-18 02:40 +0200
  Re: [PATCH] of: introduce event tracepoints for dynamic device_node lifecyle Rob Herring <robh+dt@kernel.org> - 2017-04-18 18:50 +0200
    Re: [PATCH] of: introduce event tracepoints for dynamic device_node lifecyle "Oliver O'Halloran" <oohall@gmail.com> - 2017-04-19 04:40 +0200
      Re: [PATCH] of: introduce event tracepoints for dynamic device_node lifecyle Michael Ellerman <mpe@ellerman.id.au> - 2017-04-19 12:20 +0200
        Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Tyrel Datwyler <tyreld@linux.vnet.ibm.com> - 2017-04-19 23:20 +0200
  Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-19 02:10 +0200
    Re: [PATCH] of: introduce event tracepoints for dynamic device_node lifecyle Michael Ellerman <mpe@ellerman.id.au> - 2017-04-19 03:40 +0200
      Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-19 04:40 +0200
        Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Tyrel Datwyler <tyreld@linux.vnet.ibm.com> - 2017-04-19 20:40 +0200
      Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Tyrel Datwyler <turtle.in.the.kernel@gmail.com> - 2017-04-20 01:30 +0200
        Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Steven Rostedt <rostedt@goodmis.org> - 2017-04-20 04:40 +0200
          Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-20 06:50 +0200
          Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Tyrel Datwyler <turtle.in.the.kernel@gmail.com> - 2017-04-20 07:30 +0200
            Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Steven Rostedt <rostedt@goodmis.org> - 2017-04-20 15:40 +0200
        Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-20 06:50 +0200
          Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-20 07:20 +0200
          Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Tyrel Datwyler <turtle.in.the.kernel@gmail.com> - 2017-04-20 19:00 +0200
            Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-20 21:40 +0200
              Re: [PATCH] of: introduce event tracepoints for dynamic device_node lifecyle Michael Ellerman <mpe@ellerman.id.au> - 2017-04-21 04:00 +0200
    Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-19 03:50 +0200
      Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Steven Rostedt <rostedt@goodmis.org> - 2017-04-19 05:00 +0200
        Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Tyrel Datwyler <tyreld@linux.vnet.ibm.com> - 2017-04-19 20:50 +0200
          Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-20 04:40 +0200
            Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-20 12:50 +0200
    Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Steven Rostedt <rostedt@goodmis.org> - 2017-04-19 04:50 +0200
      Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-19 05:20 +0200
  Re: [PATCH] of: introduce event tracepoints for dynamic device_node  lifecyle Frank Rowand <frowand.list@gmail.com> - 2017-04-19 19:50 +0200

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