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List:       linux-netdev
Subject:    Re: r8169 hard-freezes the system on big network loads
From:       Francois Romieu <romieu () fr ! zoreil ! com>
Date:       2011-09-15 0:03:32
Message-ID: 20110915000332.GA13821 () electric-eye ! fr ! zoreil ! com
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Michael Brade <brade@informatik.uni-muenchen.de> :
[...]
> ok, good news: I did not experience any freeze anymore even though I 
> transfered 60 GB. And I applied both of your patches and 
> 
> -                   if (status & RxFOVF) {
> -                           rtl8169_schedule_work(dev, rtl8169_reset_task);
> -                           dev->stats.rx_fifo_errors++;
> -                   }

It should not be necessary to remove this part : the status mask is
supposed to take care of it. One of my patches is wrong if this part
needs to go away.

[...]
> > Are the symptoms in any way different or do you still notice more-or-less
> > periodic link-up messages and no real network traffic ?
> 
> dmesg looks like this:
> 
> [ 1611.380420] r8169 0000:13:00.0: eth0: link up
> [ 1611.995417] r8169 0000:13:00.0: eth0: link up
> [ 1612.323050] r8169 0000:13:00.0: eth0: link up
> [ 1612.574016] r8169 0000:13:00.0: eth0: link up

I will have to figure why there are so much of theses messages.

[...]
> so yes but what do you mean with "no real network traffic"? I still get
> 100 MB/s.

100 MB/s as 100 Mbyte/s on a gigabit link or 100 Mbit/s on a {gigabit / fast}
ethernet link ?

Thanks.

-- 
Ueimor
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