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 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 18 Nov 2009 13:21:19 -0500 From: Caleb Cushing <xenoterracide@...il.com> To: Jarek Poplawski <jarkao2@...il.com> Cc: Frans Pop <elendil@...net.nl>, Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: large packet loss take2 2.6.31.x > Actually, I'm a little bit surprised. Maybe I missed something from > your previous messages, but I expected something more similar to the > first wireshark dump, which suggested to me there was only this mtr > traffic. Now there is a lot more (plus we know it's not all). probably just me lazy at 5 am? did I do the dump on the router right so it wasn't showing traffic that's just idling from other computers (windows likes to make a lot of noise). I could do it by ip... > So, there is a basic question: can this mtr loss be seen while no > other traffic is present? After looking into these current dumps I > doubt. There are e.g. 3 pings unanswered between 09:21:50 and > 09:21:52 (21:31:34 to 21:31:38 router time), but a lot of tcp > packets to and from 192.168.1.3, so looks like simply dropped and > we can guess the reason. yes. this was at a fairly low traffic time of day. 5am only 2 people were up, and I was using the other computer during. I've had everyone actively doing one or more of downloading/uploading/video/voip/gaming stuff on this network with no noticeable packet loss. if really, really needed I can probably restrict this network to 2 machines for the duration of the test. > Since this patch from the bisection is really limited to this one > module I doubt we should follow this direction. IMHO it shows the > test wasn't reproducible enough. Probably the amount and/or kind of > other traffic really matter. If I'm wrong and missed something again > let me know. Btw, could you try if changing with ifconfig the > txqueuelen of desktop's eth0 from 100 to 1000 changes anything > in this mtr test? yeah testing it under my known working config first. I'll get back w/ you later. -- Caleb Cushing http://xenoterracide.blogspot.com -- 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