Subject: Re: 2.6.20->2.6.21 - networking dies after random time

From: Chuck Ebbert <[email-masked]>
Date: Mon, 06 Aug 2007 13:43:48 -0400

On 08/06/2007 03:03 AM, Ingo Molnar wrote:
> 
> But, since level types don't need this retriggers too much I think
> this "don't mask interrupts by default" idea should be rethinked:
> is there enough gain to risk such hard to diagnose errors?
>   
> 

I reverted those masking changes in Fedora and the baffling problem
with 3Com 3C905 network adapters went away.

Before, they would print:

eth0: transmit timed out, tx_status 00 status e601.
  diagnostics: net 0ccc media 8880 dma 0000003a fifo 0000
eth0: Interrupt posted but not delivered -- IRQ blocked by another device?
  Flags; bus-master 1, dirty 295757(13) current 295757(13)
  Transmit list 00000000 vs. f7150a20.
  0: @f7150200  length 80000070 status 0c010070
  1: @f71502a0  length 80000070 status 0c010070
  2: @f7150340  length 8000005c status 0c01005c

Now they just work, apparently...

So why not just revert the change?