Date: Wed, 20 Sep 2006 14:19:00 +0200 From: Ian FREISLICH <if@hetzner.co.za> To: "Poul-Henning Kamp" <phk@phk.freebsd.dk> Cc: current@freebsd.org Subject: Re: if_em goes mum Message-ID: <E1GQ12a-000CDw-M1@hetzner.co.za> In-Reply-To: Message from "Poul-Henning Kamp" <phk@phk.freebsd.dk> of "Wed, 20 Sep 2006 11:53:03 GMT." <32633.1158753183@critter.freebsd.dk>
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"Poul-Henning Kamp" wrote: > In message <E1GQ0NC-000C5i-FM@hetzner.co.za>, Ian FREISLICH writes: > >Poul-Henning Kamp wrote: > >> > >> Every few minutes my if_em goes mum, it receives packets but > >> does not transmit anything. > >> > >> ifconfig em0 down ; sleep .1 ; ifconfig em0 up > >> > >> makes it work again. > > > >Is the OACTIVE flag set? And is TSO enabled on the interface with > >100M media? > > em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > options=38b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWCSUM,TSO4,TSO6> > inet 10.221.74.159 netmask 0xffff0000 broadcast 10.221.255.255 > ether 00:0d:60:cf:26:7a > media: Ethernet autoselect (1000baseTX <full-duplex>) > status: active > > > I've disabled tso and I still see the hang: > > em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > options=8b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWCSUM> > inet 10.221.74.159 netmask 0xffff0000 broadcast 10.221.255.255 > ether 00:0d:60:cf:26:7a > media: Ethernet autoselect (1000baseTX <full-duplex>) > status: active Interesting. At the time of the hang, can you still establish another connection to the box? I'm guessing this is similar to what I'm seeing on recent current. I think the problem appeared some time between (UTC+0200): drwxr-xr-x 2 root wheel 23552 Sep 19 11:38 kernel drwxr-xr-x 2 root wheel 23552 Sep 12 08:10 kernel.old Some of my connections hang, but others still function and I can make new connections. Sorry, that this is just a "me too". Ian -- Ian Freislich
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