Skip site navigation (1)Skip section navigation (2)
Date:      Sat, 28 Mar 1998 13:25:46 -0800
From:      David Greenman <dg@root.com>
To:        Mark Murray <mark@grondar.za>
Cc:        current@FreeBSD.ORG
Subject:   Re: VX driver in current acting up? 
Message-ID:  <199803282125.NAA23442@implode.root.com>
In-Reply-To: Your message of "Sat, 28 Mar 1998 22:09:18 %2B0200." <199803282009.WAA07410@greenpeace.grondar.za> 

next in thread | previous in thread | raw e-mail | index | archive | help
>I have been getting funny behaviour from the VX driver (I have a
>3com 3c900).
>
>Occaisionally (randomly) the card/driver goes into "slow mode", and
>gives ridiculously slow respose on my local ethernet:
>
>PING gratis.grondar.za (196.7.18.133): 56 data bytes
>64 bytes from 196.7.18.133: icmp_seq=0 ttl=255 time=989.080 ms
>64 bytes from 196.7.18.133: icmp_seq=1 ttl=255 time=980.119 ms
...
>Notice how the times slowly improve by 10ms per echo? Strange.

   This happens when FreeBSD doesn't get any more interrupts from the card.
There is a one-second watchdog that notices some input and that's the reason
for the strange 0 to 1 second RTTs.

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199803282125.NAA23442>