linux-kernel - Re: [RFC PATCH 6/6] sparc64: use early

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Message-Id: <20100310.140440.246391326.davem@davemloft.net>
Date:	Wed, 10 Mar 2010 14:04:40 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	yinghai@...nel.org
Cc:	mingo@...e.hu, tglx@...utronix.de, hpa@...or.com,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org
Subject: Re: [RFC PATCH 6/6] sparc64: use early_res and nobootmem

From: Yinghai Lu <yinghai@...nel.org>
Date: Wed, 10 Mar 2010 13:24:27 -0800

> use early_res/fw_memmap to replace lmb, so could use early_res replace bootme
> later.
> 
> Signed-off-by: Yinghai Lu <yinghai@...nel.org>

This doesn't boot, it looks like early_res is not initialized
early enough, the backtrace is:

[    0.000000] Remapping the kernel... done.
[    0.000000] Kernel panic - not syncing: can not find more space for early_res array
[    0.000000] Call Trace:
[    0.000000]  [0000000000882c48] __check_and_double_early_res+0xc0/0x1c8
[    0.000000]  [0000000000882f18] reserve_early+0x10/0x38
[    0.000000]  [000000000087b894] prom_early_alloc+0x48/0x7c
[    0.000000]  [000000000087b3e4] get_one_property+0x28/0x50
[    0.000000]  [000000000087b588] prom_create_node+0x44/0xe8
[    0.000000]  [000000000087b6d0] prom_build_tree+0x1c/0xac
[    0.000000]  [000000000087b7b4] prom_build_devicetree+0x54/0x80
[    0.000000]  [000000000087fd34] paging_init+0x69c/0x1268
[    0.000000]  [00000000008786f4] start_kernel+0x88/0x374
[    0.000000]  [000000000070589c] tlb_fixup_done+0x98/0xa0
[    0.000000]  [0000000000000000] (null)
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