2006-01-18 02:39:28

by Jeff Garzik

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Subject: net 2.6.16-rc1: multiple ipv6 failures


Just moved my firewall/gateway from 2.6.15 to 2.6.16-rc1, and had a
couple IPv6-related problems really bite me.

1) radvd runs at 100% CPU (CentOS 4 userland, 2.6.15 worked fine). I
had to kill it.

> Jan 17 21:24:43 pretzel ifup: done.
> Jan 17 21:24:44 pretzel ifup: radvd control enabled, but config is not complete
> Jan 17 21:24:50 pretzel radvd[4264]: version 0.7.2 started
> Jan 17 21:24:44 pretzel ifup: ERROR : [ipv6_trigger_radvd] Given pidfile '/var/run/radvd/radvd.pid' doesn't exist, cannot send trigger to radvd
> Jan 17 21:24:50 pretzel radvd: radvd startup succeeded


2) bind fails (which everyone on my network immediately noticed, and
complained about).

> Jan 17 21:29:04 pretzel named[5110]: loading configuration from '/etc/named.conf'
> Jan 17 21:29:04 pretzel named[5110]: /proc/net/if_inet6:sscanf() -> 1 (expected 6)
> Jan 17 21:29:04 pretzel named[5110]: interfacemgr.c:827: unexpected error:
> Jan 17 21:29:04 pretzel named[5110]: interface iteration failed: failure
> Jan 17 21:29:04 pretzel named[5110]: not listening on any interfaces
> Jan 17 21:29:04 pretzel named[5110]: command channel listening on 127.0.0.1#953
> Jan 17 21:29:04 pretzel named[5110]: /proc/net/if_inet6:sscanf() -> 1 (expected 6)
> Jan 17 21:29:04 pretzel named[5110]: interfacemgr.c:827: unexpected error:
> Jan 17 21:29:04 pretzel named[5110]: interface iteration failed: failure

Again, 2.6.15 works just fine.

Config attached. 32-bit x86 uniprocessor w/ HT (thus, SMP config).

Jeff




Attachments:
config.txt.bz2 (7.33 kB)

2006-01-18 02:41:27

by Patrick McHardy

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Subject: Re: net 2.6.16-rc1: multiple ipv6 failures

Jeff Garzik wrote:
>
> Just moved my firewall/gateway from 2.6.15 to 2.6.16-rc1, and had a
> couple IPv6-related problems really bite me.

The fix just went in Linus' tree ([IPV6]: Preserve procfs IPV6 address
output format).

2006-01-18 05:51:35

by David Miller

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Subject: Re: net 2.6.16-rc1: multiple ipv6 failures

From: Jeff Garzik <[email protected]>
Date: Tue, 17 Jan 2006 21:39:20 -0500

> 2) bind fails (which everyone on my network immediately noticed, and
> complained about).
>
> > Jan 17 21:29:04 pretzel named[5110]: loading configuration from '/etc/named.conf'
> > Jan 17 21:29:04 pretzel named[5110]: /proc/net/if_inet6:sscanf() -> 1 (expected 6)
> > Jan 17 21:29:04 pretzel named[5110]: interfacemgr.c:827: unexpected error:
> > Jan 17 21:29:04 pretzel named[5110]: interface iteration failed: failure
> > Jan 17 21:29:04 pretzel named[5110]: not listening on any interfaces
> > Jan 17 21:29:04 pretzel named[5110]: command channel listening on 127.0.0.1#953
> > Jan 17 21:29:04 pretzel named[5110]: /proc/net/if_inet6:sscanf() -> 1 (expected 6)
> > Jan 17 21:29:04 pretzel named[5110]: interfacemgr.c:827: unexpected error:
> > Jan 17 21:29:04 pretzel named[5110]: interface iteration failed: failure

Known problem, fixed by Yoshifuji in current GIT. /proc/net/if_net6's
output format got mistakedly changed, and this confused named and
ifconfig, among other things.

2006-01-18 09:40:13

by Simon Kelley

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Subject: Re: net 2.6.16-rc1: multiple ipv6 failures

David S. Miller wrote:

> Known problem, fixed by Yoshifuji in current GIT. /proc/net/if_net6's
> output format got mistakedly changed, and this confused named and
> ifconfig, among other things.

For reference, add dnsmasq to the list of confused userspace: the
signature error is:

failed to find list of interfaces: No such device

Cheers,

Simon.