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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Jens Axboe <jens.axboe@oracle.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>, Yinghai Lu <yinghai@kernel.org>,
	Tejun Heo <tj@kernel.org>
Subject: Re: [bug] latest -git boot hang
Date: Fri, 10 Oct 2008 14:10:02 -0700 (PDT)	[thread overview]
Message-ID: <alpine.LFD.2.00.0810101408320.3503@nehalem.linux-foundation.org> (raw)
In-Reply-To: <20081010205642.GA28840@elte.hu>



On Fri, 10 Oct 2008, Ingo Molnar wrote:
> 
> | 870d6656126add8e383645732b03df2b7ccd4f94 is first bad commit
> | commit 870d6656126add8e383645732b03df2b7ccd4f94
> | Author: Tejun Heo <tj@kernel.org>
> | Date:   Mon Aug 25 19:47:25 2008 +0900
> |
> |     block: implement CONFIG_DEBUG_BLOCK_EXT_DEVT
> 
> and meanwhile 2 other test-systems failed to boot as well - both have 
> CONFIG_DEBUG_BLOCK_EXT_DEVT=y.
> 
> So i guess this debug feature is working as expected.

Ahh, yeah, sounds that way.

> I guess we should mark CONFIG_DEBUG_BLOCK_EXT_DEVT=y as really dangerous 
> to enable because contemporary distributions (i tried Fedora 9) fail 
> with it too?

Tejun - do you know whether _any_ distro will boot with 
CONFIG_DEBUG_BLOCK_EXT_DEVT=y?

It does sound like perhaps the option should be hidden more, if it's 
really only reasonably enabled for some very specialized distro debuggers, 
not normal kernel people.

			Linus

  reply	other threads:[~2008-10-10 21:11 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-10 20:30 Ingo Molnar
2008-10-10 20:40 ` Ingo Molnar
2008-10-10 20:56   ` Ingo Molnar
2008-10-10 21:10     ` Linus Torvalds [this message]
2008-10-11  0:50       ` Tejun Heo
2008-10-11  1:42         ` H. Peter Anvin
2008-10-13  9:13           ` Tejun Heo
2008-10-13 11:07             ` [PATCH] block: add partition attribute for partition number Tejun Heo
2008-10-13 11:27               ` Jens Axboe
2008-10-11  7:11         ` [bug] latest -git boot hang Jens Axboe
2008-10-11  7:19         ` Ingo Molnar
2008-10-11 14:08           ` Jens Axboe
2008-10-11 14:33             ` Ingo Molnar
2008-10-11 14:39               ` Jens Axboe
2008-10-11 14:58                 ` Ingo Molnar
2008-10-11 17:58                   ` Jens Axboe
2008-10-13  6:41                     ` [PATCH] block: add BIG FAT WARNING to CONFIG_DEBUG_BLOCK_EXT_DEVT Tejun Heo
2008-10-13  8:46                       ` Jens Axboe
2008-10-14 15:15                       ` Christoph Hellwig
2008-10-14 17:31                         ` Tejun Heo
2008-10-14 15:07           ` [bug] latest -git boot hang Stephen Smalley
2008-10-14 15:12             ` Ingo Molnar
2008-10-14 15:24               ` Stephen Smalley
2008-10-15  1:48                 ` Casey Schaufler
2008-10-13  8:41         ` Takashi Iwai

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