linux-kernel - Re: [origin tree boot hang] [PATCH] Revert "early_printk: Allow morethan one early console"

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Date:	Wed, 23 Sep 2009 21:17:56 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jason Wessel <jason.wessel@...driver.com>,
	Len Brown <lenb@...nel.org>
Cc:	Greg KH <gregkh@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [origin tree boot hang] [PATCH] Revert "early_printk: Allow
	morethan one early console"


* Ingo Molnar <mingo@...e.hu> wrote:

> > Can you send me the boot args and kernel config you are using?  I'd 
> > like to figure out which part was at fault and fix it up.
> 
> will do. Will take some time though - trying to track down a new boot 
> crash as well:
> 
> acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
> initcall acpiphp_init+0x0/0x83 returned -19 after 16410 usecs
> calling  ibm_acpiphp_init+0x0/0x190 @ 1
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000003
> IP: [<ffffffff82b07130>] ibm_find_acpi_device+0x5c/0xf5

You are lucky - while trying to bisect this crash i again ran into the 
early boot hard hang.

[ I am less lucky, trying to bisect all this stuff ;-) ]

The commit point to which the attached config and bootlog belongs is:

  2.6.31-07863-gb64ada6

Reverting:

  c953094: early_printk: Allow more than one early console

solves it.

	Ingo

View attachment "config" of type "text/plain" (73527 bytes)

View attachment "hang.log" of type "text/plain" (5895 bytes)