linux-kernel - Re: Reporting bugs and bisection

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Message-ID: <87ve2kviex.fsf@basil.nowhere.org>
Date:	Mon, 14 Apr 2008 12:29:26 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Willy Tarreau <w@....eu>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Tilman Schmidt <tilman@...p.cc>, Valdis.Kletnieks@...edu,
	Mark Lord <lkml@....ca>, David Miller <davem@...emloft.net>,
	jesper.juhl@...il.com, yoshfuji@...ux-ipv6.org, jeff@...zik.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: Reporting bugs and bisection

Ingo Molnar <mingo@...e.hu> writes:
>
> doing _kernel_ bisection is totally hard at the moment - it disrupts the 
> user way too much and causes many hours of work for most users. 

It depends. Sometimes the bisection can be done in qemu/kvm/xen or
similar tools.  At least if the problem is not too hardware
dependent. And more and more people actually run in such environments.

I can also do it faster with autoboot or nfs root/powerswitch, but 
admittedly that's a very specialized setup most people don't have.

Still I agree with your basic point that it should be only
last resort.

-Andi
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