From: Matt Fleming <matt@console-pimps.org>
To: Dave Young <dyoung@redhat.com>
Cc: lv.zheng@intel.com, matt.fleming@intel.com,
linux-efi@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, devel@acpica.org, lenb@kernel.org,
rafael.j.wysocki@intel.com, robert.moore@intel.com
Subject: Re: kernel boot fail with efi earlyprintk (bisected)
Date: Thu, 21 Aug 2014 21:52:24 +0100 [thread overview]
Message-ID: <20140821205224.GJ29733@console-pimps.org> (raw)
In-Reply-To: <20140819081658.GA1795@darkstar.nay.redhat.com>
On Tue, 19 Aug, at 04:16:58PM, Dave Young wrote:
> Hi,
>
> 3.16 kernel boot fail with earlyprintk=efi on my laptop.
> It keeps scrolling at the bottom line of screen.
>
> Bisected, the first bad commit is below:
> commit 86dfc6f339886559d80ee0d4bd20fe5ee90450f0
> Author: Lv Zheng <lv.zheng@intel.com>
> Date: Fri Apr 4 12:38:57 2014 +0800
>
> ACPICA: Tables: Fix table checksums verification before installation.
>
>
> I did some debugging by enabling both serial and efi earlyprintk, below is
> some debug dmesg, seems early_ioremap fails in scroll up function due to
> no free slot, but I'm still not sure if the debug info is right or not.
Thanks Dave, your callstack seems to make sense.
Can you also enable early_ioremap_debug so that we can figure out where
all the FIXMAP slots are going?
--
Matt Fleming, Intel Open Source Technology Center
next prev parent reply other threads:[~2014-08-21 20:52 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 [this message]
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
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