8-STABLE freezes on UDP traffic (DNS), 7.x doesn't
bra at fsn.hu
Mon Mar 29 12:04:41 UTC 2010
Mike Tancsa wrote:
> At 11:39 AM 3/25/2010, Michael Loftis wrote:
>> --On Thursday, March 25, 2010 3:22 PM +0100 Attila Nagy <bra at fsn.hu>
>>> Both unbound and python accepts DNS requests, and it seems when 25%
>>> interrupt happens, only unbound is in *udp state, where it is 50%, both
>>> programs are in that state.
>> Try turning of hardware TSO/checksum offload if it's availble on your
>> chipset? ifconfig <interface> -rxcsum -txcsum -tso -- I'm only using
>> nfe chips right now, but w/ the TSO/CSUM on they lock up constantly
>> under high load. We're pretty sure it's mostly the nfe driver, or
>> the chips themselves, but have never ruled out some generic 8.x
>> hardware offload issues.
> There were also a bunch of commits last night for the bce driver. If
> its the NIC in RELENG_8, perhaps those bug fixes might help
I saw them, but they didn't seem to be related. I've just tested it, and
my assumptions were correct. A fresh 8-STABLE also freezes.
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