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Date:	Fri, 9 Mar 2007 05:36:09 +0100
From:	Michael <iogl64nx@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.21-rc3-mm2

Hello Andrew,

I found a little "hickup" in the mm kernel series since 2.6.21-rc2-mm1/mm2.
1.) appeared while boot (no VFS mounted at time)

BUG: at arch/i386/mm/highmem.c:61 kmap_atomic()
 [<c011583b>]  [<c03340b5>]  [<c033455c>]  [<c0297d57>]  [<c032e10f>]
[<c0332728>]  [<c033be08>]  [<c032500b>]  [<c0319d59>]  [<c01425c5>]
[<c014395d>]  [<c01056fb>]  [<c0516540>]  [<c01035a7>]  [<c0516540>]
[<c0100be6>]  [<c0100ddd>]  [<c0516d95>]  [<c0516540>]
=======================
BUG: at arch/i386/mm/highmem.c:61 kmap_atomic()
 [<c011583b>]  [<c03340b5>]  [<c033455c>]  [<c032e10f>]  [<c0332728>]
[<c033be08>]  [<c011c1e1>]  [<c01425c5>]  [<c014395d>]  [<c01056fb>]
[<c0516540>]  [<c01035a7>]  [<c0516540>]  [<c0100be6>]  [<c0100ddd>]
[<c0516d95>]  [<c0516540>]  =======================

2.) some time after when I run some ups i hit this
BUG: atomic counter underflow at:

[<f94140a6>]  [<f9414657>]  [<c03d6611>]  [<c03d4c85>]  [<c04175c3>]
[<c03d619b>]  [<c03d5c6a>]  [<c03ca100>]  [<c03ca0b0>]  [<c017657b>]
[<c01149e6>]  [<c017663c>]  [<c01768f2>]  [<c0102ba2>]  [<c0430000>]
=======================

Then in 2.6.21-rc3-mm2

Now for rc3-mm2 the bug of under 1.) of rc2-mm1/mm2 gone.

But still here -> underflow..*huh*
BUG: atomic counter underflow at:
 [<b0270295>]  [<b02da598>]  [<b02db0b8>]  [<b0281b4e>]  [<f1fdd389>]
[<b04081c7>]  [<b0140540>]  [<b0140318>]  [<b015a099>]  [<b015ab57>]
[<b0102ba2>]  [<b0400000>]  =======================

Also I found some mis-beheviour of the Attansic "atl1 driver"
Maybe I address it wrong but I don't know (sure) who is the real maintainer.
Well I looked at atl1_main.c but to be honest there aren't obvious
information to whom/where I should address such issues.

Could you please so kind to address it to the right person?

atl1: hw csum wrong pkt_flag:1600, err_flag:80

All these hickups never appeared in the latest vanilla kernel
2.6.21-rc2 + even the last git-updates
2.6.21-rc3-git3 there is also not such behaviour

Thanks for your patience.

Best regards
Michael
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