From: robert.richter@caviumnetworks.com (Robert Richter)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] arm64: vmemmap: use virtual projection of linear region
Date: Wed, 9 Mar 2016 12:36:38 +0100 [thread overview]
Message-ID: <20160309113638.GC1535@rric.localdomain> (raw)
In-Reply-To: <20160309113214.GB1535@rric.localdomain>
On 09.03.16 12:32:14, Robert Richter wrote:
> On 08.03.16 17:31:05, Ard Biesheuvel wrote:
> > On 8 March 2016 at 09:15, Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote:
> > I managed to reproduce and diagnose this. The problem is that vmemmap
> > is no longer zone aligned, which causes trouble in the zone based
> > rounding that occurs in memory_present. The below patch fixes this by
> > rounding down the subtracted offset. Since this implies that the
> > region could stick off the other end, it also reverts the halving of
> > the region size.
>
> I have seen the same panic. The fix solves the problem. See enclosed
> diff for reference as there was some patch corruption of the original.
So this is:
Tested-by: Robert Richter <rrichter@cavium.com>
-Robert
next prev parent reply other threads:[~2016-03-09 11:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-26 16:57 [PATCH v2 0/2] vmemmap fix for bug introduced by extending VA range Ard Biesheuvel
2016-02-26 16:57 ` [PATCH v2 1/2] arm64: vmemmap: use virtual projection of linear region Ard Biesheuvel
2016-03-08 1:07 ` David Daney
2016-03-08 2:15 ` Ard Biesheuvel
2016-03-08 10:31 ` Ard Biesheuvel
2016-03-08 13:17 ` Mark Langsdorf
2016-03-08 15:21 ` Ard Biesheuvel
2016-03-09 11:32 ` Robert Richter
2016-03-09 11:36 ` Robert Richter [this message]
2016-02-26 16:57 ` [PATCH v2 2/2] arm64: mm: treat memstart_addr as a signed quantity Ard Biesheuvel
2016-02-29 12:39 ` Ard Biesheuvel
2016-02-29 18:36 ` Catalin Marinas
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