Re: re0 watchdog timeouts

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Wed, Apr 26, 2017 at 10:52:31AM +0200, Riccardo Mottola wrote:
> Hi,
> 
> I upgraded current kernel (running a version compiled on 22 April)
> 
> NetBSD 7.99.70 (HP620) #4: Sat Apr 22 19:15:00 CEST 2017
> 
> and I experience wired network unreliability, I get continuous watchdog
> timeouts, I see in dmesg:
> 
> re0: watchdog timeout
> re0: watchdog timeout
> re0: watchdog timeout
> re0: watchdog timeout
> re0: watchdog timeout
> 
> Information about my card:
> re0 at pci5 dev 0 function 0: RealTek 8100E/8101E/8102E/8102EL PCIe
> 10/100BaseTX (rev. 0x02)
> re0: interrupting at msi7 vec 0
> re0: Ethernet address 64:31:50:7b:8f:55
> re0: using 256 tx descriptors
> rlphy0 at re0 phy 7: RTL8201L 10/100 media interface, rev. 1
> re0: link state UP (was UNKNOWN)
> 
> 
> I don't remember experiencing something as bad before.

This probably doesn't make sense, but I had to revert if_re_pci.c 1.47
as the network ground to a halt. (tcpdump showed many incorrect cksums too)
Speed is back now - random coincidence? (Not sure about correctness being
back)

re0 at pci3 dev 0 function 0: RealTek 8168/8111 PCIe Gigabit Ethernet (rev. 0x07)
re0: interrupting at msi3 vec 0

and just one watchdog timeout so far in the last 15mins.

Cheers,

Patrick