From: Matt Fleming <matt@console-pimps.org>
To: Dave Young <dyoung@redhat.com>
Cc: "Zheng, Lv" <lv.zheng@intel.com>,
"Fleming, Matt" <matt.fleming@intel.com>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"devel@acpica.org" <devel@acpica.org>,
"lenb@kernel.org" <lenb@kernel.org>,
"Wysocki, Rafael J" <rafael.j.wysocki@intel.com>,
"Moore, Robert" <robert.moore@intel.com>
Subject: Re: kernel boot fail with efi earlyprintk (bisected)
Date: Mon, 25 Aug 2014 12:16:53 +0100 [thread overview]
Message-ID: <20140825111653.GR29733@console-pimps.org> (raw)
In-Reply-To: <20140825090619.GA3202@darkstar.nay.redhat.com>
On Mon, 25 Aug, at 05:06:19PM, Dave Young wrote:
>
> Problem is I do not understand the implementation detail yet.
>
> I did below changes:
>
> Original values:
> #define NR_FIX_BTMAPS 64
> #define FIX_BTMAPS_SLOTS 4
>
> -> new values tested:
> #define NR_FIX_BTMAPS 32
> #define FIX_BTMAPS_SLOTS 8
>
>
> There's below comments
> /*
> * 256 temporary boot-time mappings, used by early_ioremap(),
> * before ioremap() is functional.
> *
> * If necessary we round it up to the next 256 pages boundary so
> * that we can have a single pgd entry and a single pte table:
> */
>
> So seems increase it to 64 * 8 = 512 should be ok. If it's fine I can test again
> and post a patch.
Make sure you include the x86 maintainers on Cc if you change these
values.
--
Matt Fleming, Intel Open Source Technology Center
prev parent reply other threads:[~2014-08-25 11:16 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-19 8:16 kernel boot fail with efi earlyprintk (bisected) Dave Young
2014-08-21 20:52 ` Matt Fleming
2014-08-22 1:43 ` Zheng, Lv
2014-08-22 5:55 ` Zheng, Lv
2014-08-22 10:04 ` Dave Young
2014-08-22 10:02 ` Dave Young
[not found] ` <20140822100258.GA1877-4/PLUo9XfK+sDdueE5tM26fLeoKvNuZc@public.gmane.org>
2014-08-25 6:07 ` Dave Young
[not found] ` <20140825060713.GA4011-4/PLUo9XfK+sDdueE5tM26fLeoKvNuZc@public.gmane.org>
2014-08-25 6:34 ` Zheng, Lv
2014-08-25 9:06 ` Dave Young
2014-08-25 11:16 ` Matt Fleming [this message]
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