linux-kernel - Re: 2.6.19-mm1

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Date:	Tue, 12 Dec 2006 15:43:54 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.19-mm1

On Mon, 11 Dec 2006 22:06:17 -0800
Andrew Morton <akpm@...l.org> wrote:
> > When I use ftp on 2.6.19-mm1, transfered file is always broken.
> > like this:
> > ==
> > [kamezawa@...ares ~]$ file ./linux-2.6.19.tar.bz2 (got on 2.6.19-mm1)
> > ./linux-2.6.19.tar.bz2: data
> > (I confirmed original file was not broken.)
> 
> Yes, a couple of people have reported things like this.  Strange. 
> test.kernel.org is showing mostly-green.  There's one fsx-linux failure (for
> unclear reasons) on one of the x86_64 machines, all the rest are happy.
> 
> Which filesystem were you using?
> 
using ext3.
> Can you investigate it a bit further please??  reboot, re-download, work
> out how the data differs, etc?
> 
Hmm, this is summary of broken linux-2.6.19.tar.bz2 file (used od and diff) 

offset 000000 -> 000b4f  zero cleared.
offset 000b50 -> 000fff  not broken
offset 001000 -> 001c47  zero cleared
offset 001c48 -> 001fff  not broken
offset 002000 -> 002d39  zero cleared
offset 002d40 -> 003fff  not broken.
offset 004000 -> 004f2f  zero cleared
offset 004f30 -> 004fff  not broken
offset 005000 -> 005a79  zero cleared
offset 005a80 -> 005fff  not broken
offset 006000 -> 006b7f  zero cleared
offset 006b80 -> 007fff  not broken
.......
 
All broken parts are always zero-cleared and start from offset 
aligned to 0x1000. (note: broken kernel's PAGE_SIZE is 16384)

I'll do AMAP.

-Kame









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