From: Ingo Molnar <mingo@elte.hu>
To: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: linux-mm@kvack.org, x86@kernel.org, linux-kernel@vger.kernel.org,
Mel Gorman <mgorman@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] mm,x86: initialize high mem before free_all_bootmem()
Date: Tue, 6 Dec 2011 11:36:18 +0100 [thread overview]
Message-ID: <20111206103618.GE15966@elte.hu> (raw)
In-Reply-To: <20111206102622.GC3105@redhat.com>
* Stanislaw Gruszka <sgruszka@redhat.com> wrote:
> On Tue, Dec 06, 2011 at 09:25:55AM +0100, Ingo Molnar wrote:
> > The thing is, the pagealloc bug you fixed basically kept
> > pagealloc debugging essentially disabled for a really long time,
> > correct?
> Yes, it worked only in special cases.
>
> > So i'd expect there to be quite a few latent problems -
> > i'll give it some more testing before pushing out the result.
>
> Ehh, I expect them too, but fortunately only with
> CONFIG_DEBUG_PAGEALLOC, non-debug kernel are not affected.
I test DEBUG_PAGEALLOC=y kernels all the time - i just booted a
32-bit and a 64-bit allyesconfig kernel an hour ago.
Miraculously everything appears to be in working order so far.
Thanks,
Ingo
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prev parent reply other threads:[~2011-12-06 10:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-29 16:05 [PATCH repost] mm,x86: remove debug_pagealloc_enabled Stanislaw Gruszka
2011-12-05 11:06 ` Ingo Molnar
2011-12-05 15:00 ` Stanislaw Gruszka
2011-12-05 15:54 ` Ingo Molnar
2011-12-06 7:55 ` Stanislaw Gruszka
2011-12-06 8:08 ` [PATCH] mm,x86: initialize high mem before free_all_bootmem() Stanislaw Gruszka
2011-12-06 8:25 ` Ingo Molnar
2011-12-06 10:26 ` Stanislaw Gruszka
2011-12-06 10:36 ` Ingo Molnar [this message]
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