Re: [RFC PATCH v1.9 07/14] x86/stacktrace: add function for detecting reliable stack traces

From	Petr Mladek <pmladek@suse.com>
Newsgroups	linux.kernel
Subject	Re: [RFC PATCH v1.9 07/14] x86/stacktrace: add function for detecting reliable stack traces
Date	2016-04-08 10:30 +0200
Message-ID	<rlzXI-XP-17@gated-at.bofh.it> (permalink)
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On Thu 2016-04-07 09:46:55, Josh Poimboeuf wrote:
> On Thu, Apr 07, 2016 at 01:55:52PM +0200, Petr Mladek wrote:
> > Well, I wonder if we should be more suspicious and make
> > sure that only the regular process stack is used.
> 
> Notice the save_stack_stack_reliable() function, which is called by
> dump_trace() when the task is running on an interrupt or exception
> stack.  It returns -EINVAL, so the stack gets marked unreliable.  Does
> that address your concern, or did you mean something else?

I see. It does what I wanted.

Thanks,
Petr

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Re: [RFC PATCH v1.9 07/14] x86/stacktrace: add function for  detecting reliable stack traces Petr Mladek <pmladek@suse.com> - 2016-04-07 14:00 +0200
  Re: [RFC PATCH v1.9 07/14] x86/stacktrace: add function for  detecting reliable stack traces Josh Poimboeuf <jpoimboe@redhat.com> - 2016-04-07 16:50 +0200
    Re: [RFC PATCH v1.9 07/14] x86/stacktrace: add function for  detecting reliable stack traces Petr Mladek <pmladek@suse.com> - 2016-04-08 10:30 +0200

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