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Re: [PATCH v4 2/4] x86: query dynamic DEBUG_PAGEALLOC setting

From David Rientjes <rientjes@google.com>
Newsgroups linux.kernel
Subject Re: [PATCH v4 2/4] x86: query dynamic DEBUG_PAGEALLOC setting
Date 2016-02-03 23:50 +0100
Message-ID <qYepk-8ec-19@gated-at.bofh.it> (permalink)
References <qY18J-7WJ-7@gated-at.bofh.it> <qY18J-7WJ-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, 3 Feb 2016, Christian Borntraeger wrote:

> We can use debug_pagealloc_enabled() to check if we can map
> the identity mapping with 2MB pages. We can also add the state
> into the dump_stack output.
> 
> The patch does not touch the code for the 1GB pages, which ignored
> CONFIG_DEBUG_PAGEALLOC. Do we need to fence this as well?
> 

I think it would be an extension of the debug_pagealloc= functionality and 
can certainly be introduced if someone is inclined.

> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

Acked-by: David Rientjes <rientjes@google.com>

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[PATCH v4 2/4] x86: query dynamic DEBUG_PAGEALLOC setting Christian Borntraeger <borntraeger@de.ibm.com> - 2016-02-03 09:40 +0100
  Re: [PATCH v4 2/4] x86: query dynamic DEBUG_PAGEALLOC setting David Rientjes <rientjes@google.com> - 2016-02-03 23:50 +0100

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