Re: 2.6.21-rc3-mm2

From: Michael
Date: Thu Mar 08 2007 - 23:36:26 EST


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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