Cc: linux-kernel@vger.kernel.org, bunk@stusta.de,
       torvalds@linux-foundation.org
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Date: Sat, 24 Feb 2007 20:23:26 +0100
From: "Uwe Bugla" <uwe.bugla@gmx.de>
In-Reply-To: <20070224100729.8675b425.akpm@linux-foundation.org>
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References: <20070224175424.176030@gmx.net>
 <20070224100729.8675b425.akpm@linux-foundation.org>
Subject: Re: bug in kernel 2.6.21-rc1-git1: conventional floppy drive cannot be
 mounted without hanging up the whole system
To: Andrew Morton <akpm@linux-foundation.org>
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-------- Original-Nachricht --------
Datum: Sat, 24 Feb 2007 10:07:29 -0800
Von: Andrew Morton <akpm@linux-foundation.org>
An: "Uwe Bugla" <uwe.bugla@gmx.de>
CC: torvalds@linux-foundation.org, bunk@stusta.de, linux-kernel@vger.kernel.org
Betreff: Re: bug in kernel 2.6.21-rc1-git1: conventional floppy drive cannot be mounted without hanging up the whole system

> > On Sat, 24 Feb 2007 18:54:24 +0100 "Uwe Bugla" <uwe.bugla@gmx.de> wrote:
> > Hi folks,
> > Second attempt now:
> > I already reported to Linus Torvalds and Andrew Morton that it is
> impossible to mount a conventional floppy drive without hanging up the whole
> system.
> > Andrew's reaction was quite ambiguous: "We did not break it"
> 
> Sorry, what I meant was "Neither Linus nor I broke it".  ie: please report
> this in a place where the person who did break it can see it.  This you
> have
> done.
> 
> > Once again and for the last time: I do not state that floppy.c is
> broken. I only state that it is immpossible to mount a floppy drive with kernel
> 2.6.21-rc1-git1. Kernel 2.6.20 is OK. But 2.6.21-rc1-git1 is definitely
> buggy!
> > I did some work already:
> > a. I copied the following modules from the intact and sane kernel 2.6.20
> into the 2.6.21-rc1-git1 tree:
> > cdrom.h, floppy.c, init.h, io.h, proc_misc.c, setup.c, timer.h,
> uaccess.h
> > b. I adjusted some hunks of the patch for module main.c (part of
> patch-2.6.21-rc1) to make the kernel compile without errors.
> > But the problem still persists, and I do not have any idea anymore where
> the offensive hunks in patch-2.6.21-rc1 could reside.
> > 
> > Questions:
> > a. Can someone please confirm the described problem?
> > b. Can someone please take action to find out where the buggy code
> resides?
> > c. Why is this untested material being pushed into main vanilla - what
> is going on at kernel.org please?
> > 
> > Please take action! The bug was introduced somewhere at the transition
> of 2.6.20 towards 2.6.20-git14.
> > 
> 
> I think we'll find that it works OK for hundreds of other people, so it
> got
> broken in some manner which is specific to a very small number of
> machines,
> of which yours is one.
> 
> If that theory proves to be correct, I'm afraid that the most proactical
> way of fixing this is to ask you to run a git-bisect to find the changeset
> which introduced the regression.
> 
Andrew,
it is definitely NOT my job to repair errors that other responsibility-free people pushed into vanilla mainline without the slightest test effort in some mm-tree for example. Who wasted it must repair it, without the slightest discussion!
I have provided enough information and energy to establish guidelines how to fix that error.
Above that I am still waiting for my linuxtv patches being applied which would be a nice and honest gesture.
Any further questions, Mr. Morton, or did I pronounce clear?
So take action now please!

Yours sincerely

Uwe

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