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:	Tue, 26 Aug 2008 17:32:20 +0300 (EEST)
From:	"Ilpo Järvinen" <>
To:	"Dâniel Fraga" <>
cc:	David Miller <>,,, Netdev <>,
	Patrick Hardy <>,,
Subject: Re: [PATCH] tcp FRTO: in-order-only "TCP proxy" fragility workaround

On Tue, 26 Aug 2008, Ilpo Järvinen wrote:

> ListenOverflows might explain this (it can't be ListenDrops since it's 
> equal to ListenOverflows and both get incremented on overflow). Are you 
> perhaps short on workers at the userspace server? It would be nice to 
> capture those mibs often enough (eg., once per 1s with timestamps) during 
> the stall to see what actually gets incremented during the event because 
> there's currently so much haystack that finding the needle gets impossible 
> (ListenOverflows 47410) :-). Also, the corresponding tcpdump would be 
> needed to match the events.

Alternatively, you could strace the userspace to see that it keeps 
accept()'ing the connections.


Powered by blists - more mailing lists