On Tue, Sep 08, 2015 at 04:44:57PM +0100, Stuart Henderson wrote:
> On 2015/09/08 17:28, Carlos Fenollosa wrote:
> >
> > > On 07 Sep 2015, at 20:40, Stuart Henderson <[email protected]> wrote:
> > >
> > > On 2015/09/07 20:26, Landry Breuil wrote:
> > >> I cant help you on the issue itself, but i can confirm you that i've
> > >> been seeing the exact same issue with gem0 on my g4 mac mini here, and
> > >> since some releases. randomly, gem0 just doesnt receive/send pkts
> > >> anymore and needs to be downed/upped.
> > >
> > > Interesting - I don't see that on mine.
> > >
> > > Out of interest does your switch have flow control enabled? (you will
> > > see rxpause and/or txpause in the ifconfig output). If it does, is there
> > > any change if you disable it on the switch (if you can do so)?
> > >
> > > gem0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu
> > > 1500
> > > lladdr 00:0d:93:63:da:5a
> > > priority: 0
> > > groups: egress
> > > media: Ethernet autoselect (100baseTX full-duplex)
> > > status: active
> >
> > Yes, it seems to be the case:
> >
> > gem0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > lladdr 00:11:24:87:a7:64
> > priority: 0
> > groups: egress
> > media: Ethernet autoselect (100baseTX full-duplex,rxpause,txpause)
> > status: active
> > inet 192.168.1.199 netmask 0xffffff00 broadcast 192.168.1.255
> >
> >
> > I have a crappy telco router, I’m actually not sure if I can disable it
> > there. There is a section on QoS, but the option is disabled.
> > Could the driver be forced to disable flow control? At least I could try
> > running it for a couple weeks to see if the bug is triggered again.
> >
> >
> > Thanks a lot,
> > Carlos
> >
>
> Flow control was a complete guess btw and might be unconnected.
> This diff ought to disable it but my mac is 1500km away at the moment
> so untested!
>
> Landry, does yours show rxpause/txpause on this line?
nope, as i said my switch is more than basic..
gem0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:14:51:1f:5c:f4
priority: 0
media: Ethernet autoselect (100baseTX full-duplex)
status: active
inet 10.246.200.1 netmask 0xff000000 broadcast 10.255.255.255
inet6 fe80::214:51ff:fe1f:5cf4%gem0 prefixlen 64 scopeid 0x2
inet6 2a01:e34:edcb:85c0::1 prefixlen 120
Landry
