linux-kernel - Re: [2/3] 2.6.22-rc2: known regressions v2

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Date:	Thu, 24 May 2007 12:50:22 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Christoph Lameter <clameter@....com>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Cherwin R. Nooitmeer" <cherwin@...il.com>,
	linux-pcmcia@...ts.infradead.org,
	Robert de Rooy <robert.de.rooy@...il.com>,
	Alan Cox <alan@...hat.com>, Tejun Heo <htejun@...il.com>,
	sparclinux@...r.kernel.org, David Miller <davem@...emloft.net>,
	Mikael Pettersson <mikpe@...uu.se>,
	linux1394-devel@...ts.sourceforge.net,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	Kristian H?gsberg <krh@...planet.net>,
	linux-pm@...ts.linux-foundation.org,
	"Rafael J. Wysocki" <rjw@...k.pl>, Pavel Machek <pavel@....cz>,
	Marcus Better <marcus@...ter.se>,
	Andrey Borzenkov <arvidjaar@...l.ru>,
	linux-usb-devel@...ts.sourceforge.net,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: Re: [2/3] 2.6.22-rc2: known regressions v2



On Thu, 24 May 2007, Ingo Molnar wrote:
> 
> i very much agree that this kmalloc_index() one shouldnt be called a 
> "BUG: ", but if you look at the majority of WARN_ON() instances they are 
> checks for clear, serious kernel bugs.

I _still_ disagree.

There's a huge difference between "You killed my father, prepare to die", 
and "Btw, I didn't like that, but I'll just continue".

And that's the difference between BUG_ON() and WARN_ON().

And dammit, the kernel message should make that CLEAR. It's totally 
idiotic to call both "BUG". One is a clear BUG, the other is a "uhhuh, 
something unexpected happened, but I know how to continue".

So stop this idiotic "we should call them both the same". If they actually 
were the same, they'd both be called BUG_ON().

		Linus
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