netdev - Re: TCP connection stops after high load.

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 13 Apr 2007 21:25:23 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	dada1@...mosbay.com, danielschaffrath@....com,
	greearb@...delatech.com, andi@...stfloor.org,
	netdev@...r.kernel.org, bcrl@...ck.org
Subject: Re: TCP connection stops after high load.

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Sat, 14 Apr 2007 14:21:44 +1000

> Eric Dumazet <dada1@...mosbay.com> wrote:
> > 
> > dev_queue_xmit_nit() is called before attempting to send packet to device.
> > 
> > If device could not accept the packet (hard_start_xmit() returns an error), packet is requeued and retried later.
> > each retry means call ev_queue_xmit_nit() again, so tcpdump/sniffers can 'see' packet transmited several times. 
> 
> This should only happen with LLTX drivers.  In fact, LLTX drivers are
> really more trouble than they're worth.  They should all be rewritten
> to follow the model used in tg3.

Agreed.
-
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