From: Bob Picco <bpicco@meloft.net>
To: sparclinux@vger.kernel.org
Subject: Re: [PATCH] sparc64: swapper_tsb and swapper_4m_tsb phys correction
Date: Fri, 19 Sep 2014 19:57:31 +0000 [thread overview]
Message-ID: <20140919195731.GV17331@zareason> (raw)
In-Reply-To: <1410886239-15774-1-git-send-email-bpicco@meloft.net>
Hi,
David Miller wrote: [Fri Sep 19 2014, 03:28:46PM EDT]
> From: David Miller <davem@davemloft.net>
> Date: Thu, 18 Sep 2014 19:16:37 -0400 (EDT)
>
> > I'm half-way done with the "use kernel page tables for everything"
> > patch, and will post once I have something that at least work for
> > me.
>
> Bob, I ran into a major roadblock which is going to delay this work
> a little bit.
Okay.
>
> In fact it pointed out a bug we introduced when increasing max phys
> bits to 47. We broke DEBUG_PAGEALLOC completely. The issue is that
> the page table layout only supports up to 43-bits.
Oh bugger yes. I recall testing this when first introducting four level
page table layout in late 2012 and early 2013. It just isn't an everyday
thought but VERY nice to have.
>
> I'll brain storm about this over the weekend.
Me too.
next prev parent reply other threads:[~2014-09-19 19:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-16 16:50 [PATCH] sparc64: swapper_tsb and swapper_4m_tsb phys correction Bob Picco
2014-09-17 1:48 ` David Miller
2014-09-17 12:42 ` Bob Picco
2014-09-17 17:16 ` David Miller
2014-09-17 19:22 ` Bob Picco
2014-09-17 20:04 ` David Miller
2014-09-17 21:00 ` Bob Picco
2014-09-18 10:09 ` Bob Picco
2014-09-18 17:08 ` David Miller
2014-09-18 19:43 ` David Miller
2014-09-18 21:34 ` Bob Picco
2014-09-18 22:15 ` Bob Picco
2014-09-18 23:16 ` David Miller
2014-09-19 19:28 ` David Miller
2014-09-19 19:57 ` Bob Picco [this message]
2014-09-22 4:22 ` David Miller
2014-09-22 18:56 ` Bob Picco
2014-09-22 19:13 ` David Miller
2014-09-24 22:26 ` David Miller
2014-09-24 23:12 ` Bob Picco
2014-09-25 17:43 ` Bob Picco
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