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From: Matt Fleming <matt@console-pimps.org>
To: "Mantas Mikulėnas" <grawity@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>,
	Matt Fleming <matt.fleming@intel.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-efi@vger.kernel.org
Subject: Re: Loading initrd above 4G causes freeze on boot
Date: Wed, 13 Aug 2014 19:44:49 +0100	[thread overview]
Message-ID: <20140813184449.GV15082@console-pimps.org> (raw)
In-Reply-To: <CAPWNY8WdA+Q+WjXirGOsrYjMGp+69sCqYa8ST7_owQeVhQkT0w@mail.gmail.com>

On Wed, 13 Aug, at 07:38:14PM, Mantas Mikulėnas wrote:
> 
> Here you go.
> 
> [    0.000000] BIOS-e820: [mem 0x0000000100000000-0x0000000137ffffff] usable

[...]

> [    0.000000] reserve setup_data: [mem 0x0000000100000000-0x0000000137ffffff] usable

[...]

> [    0.000000] efi: mem201: type=7, attr=0xf, range=[0x0000000100000000-0x0000000138000000) (896MB)

Nothing crazy here, unless we're getting the calculation wrong and
reading past the buffer, the code looks OK though. Or something like the
last page or so of that memory isn't actually free even though the
firmware tells us it is.

At this point, I think modifying the max address is the best way to
debug this further, and figure out what address causes the hang.

-- 
Matt Fleming, Intel Open Source Technology Center

  reply	other threads:[~2014-08-13 18:44 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-09 14:23 Loading initrd above 4G causes freeze on boot Mantas Mikulėnas
2014-08-09 16:44 ` Yinghai Lu
2014-08-09 19:23   ` Matt Fleming
2014-08-09 22:45     ` Mantas Mikulėnas
2014-08-10  5:55       ` Yinghai Lu
2014-08-10 18:43         ` Mantas Mikulėnas
2014-08-13 14:02           ` Matt Fleming
2014-08-13 16:38             ` Mantas Mikulėnas
2014-08-13 18:44               ` Matt Fleming [this message]
2014-08-20 17:05                 ` Matt Fleming
2014-08-20 19:05                   ` Mantas Mikulėnas
2014-08-20 19:53                     ` Michael Brown
2014-08-20 20:30                       ` Matt Fleming
2014-08-21 20:23                         ` [edk2] " Laszlo Ersek
2014-08-22 14:24 ` Harald Hoyer
2014-08-22 14:43   ` Mantas Mikulėnas
2014-08-24 19:19     ` Mantas Mikulėnas
2014-08-25 10:55       ` Matt Fleming
2014-08-25 11:08         ` Mantas Mikulėnas
2014-08-25 12:53           ` Matt Fleming
2014-08-25 18:22             ` Yinghai Lu

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