lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Thu, 15 Dec 2011 14:49:58 +0100
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	David Miller <davem@...emloft.net>
Cc:	timo.teras@....fi, netdev@...r.kernel.org
Subject: Re: linux-3.0.x regression with ipv4 routes having mtu

On Wed, Dec 14, 2011 at 12:50:10PM -0500, David Miller wrote:
> From: Timo Teräs <timo.teras@....fi>
> Date: Wed, 14 Dec 2011 17:54:16 +0200
> 
> > So something is does not get updated here. This used to work though.
> > The current production boxes where I know this work is 2.6.38.8.
> 
> We store the PMTU externally in inetpeer entries, Eric Dumazet
> fixed recently but that fix hasn't been submitted to -stable
> yet.
> 

I think we still have at least two problems with pmtu handling.
One is that "ip route flush cache" flushes the routing cache
but not the cached metrics on the inetpeer.

Another problem might be that we ignore the user configured
fib_metrics in rt_init_metrics() if we have a cached metric
on the inetpeer.

I'll try to look at this a bit closer tomorrow.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists