Date: Wed, 20 Sep 2006 11:53:03 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Ian FREISLICH <if@hetzner.co.za> Cc: current@freebsd.org Subject: Re: if_em goes mum Message-ID: <32633.1158753183@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 20 Sep 2006 13:36:14 %2B0200." <E1GQ0NC-000C5i-FM@hetzner.co.za>
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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
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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