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Groups > linux.kernel > #1609051

Re: lockdep warning: console vs. mem hotplug

From Steven Rostedt <rostedt@goodmis.org>
Newsgroups linux.kernel
Subject Re: lockdep warning: console vs. mem hotplug
Date 2017-03-25 02:10 +0100
Message-ID <toInn-1Fh-7@gated-at.bofh.it> (permalink)
References <tn9i1-7Yx-9@gated-at.bofh.it> <toApP-4fB-5@gated-at.bofh.it> <toHrk-ZP-9@gated-at.bofh.it>
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On Sat, 25 Mar 2017 09:00:05 +0900
Sergey Senozhatsky <sergey.senozhatsky@gmail.com> wrote:

> Hello,
> 
> On (03/24/17 12:39), Steven Rostedt wrote:
> [..]
> > Is there a stack trace of where the lockdep dump happened? That is
> > useful too. Otherwise we don't see where the inverse happened.  
> 
> Steven, isn't it the inversion I describe in [1] (after the first lockdep
> warning)?
> 
> [1] lkml.kernel.org/r/20170321044421.GB448@jagdpanzerIV.localdomain
>

Yeah, I believe you are right. I just wanted to make sure. It's the
same backtrace as the "(&(&sclp_con_lock)->rlock){-.-...}:" dump, but I
wanted to make sure.

-- Steve

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Thread

Re: lockdep warning: console vs. mem hotplug Steven Rostedt <rostedt@goodmis.org> - 2017-03-24 17:40 +0100
  Re: lockdep warning: console vs. mem hotplug Sebastian Ott <sebott@linux.vnet.ibm.com> - 2017-03-24 18:00 +0100
  Re: lockdep warning: console vs. mem hotplug Sergey Senozhatsky <sergey.senozhatsky@gmail.com> - 2017-03-25 01:10 +0100
    Re: lockdep warning: console vs. mem hotplug Steven Rostedt <rostedt@goodmis.org> - 2017-03-25 02:10 +0100

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