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Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected)

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To: Alexey Dobriyan <adobriyan@...>
Cc: Luca Tettamanti <kronos.it@...>, Chris Snook <csnook@...>, Jeff Garzik <jeff@...>, Pekka Enberg <penberg@...>, Andrew Morton <akpm@...>, <linux-kernel@...>, <netdev@...>, Christoph Lameter <clameter@...>, <torvalds@...>
Date: Sunday, April 20, 2008 - 2:37 pm

On Sun, 20 Apr 2008 16:26:31 +0400
Alexey Dobriyan <adobriyan@gmail.com> wrote:

[...]

I can't duplicate this error, but it's probably because my machine
doesn't have 4GB of memory.

I have one report in Febroary 2008 of another user encountering strange
oopses in 2.6.23.12 and 2.6.24 whenever he downed the interface.  I
suspect your experience is a repeat of that.

Just to be clear, you transfer about 200MB to the NIC (Rx direction),
then immediately reboot, right?  Can you duplicate the problem if you
simply ifconfig down instead of rebooting after the transfer?  

Thanks for your help.

Jay
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Messages in current thread:
Re: 2.6.25-rc8-mm2: FIX kmalloc-2048 (was Re: 2.6.25-rc8-mm2..., Christoph Lameter, (Mon Apr 14, 4:05 pm)
atl1 64-bit =&gt; 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Sat Apr 19, 10:45 am)
Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Sun Apr 20, 2:37 pm)
speck-geostationary