netdev - Re: future developments of usbnet

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]

Message-ID: <BANLkTi=AGQyvG58n9FG2Axbz7Ue8a6E3kg@mail.gmail.com>
Date:	Mon, 9 May 2011 23:22:24 +0800
From:	Ming Lei <tom.leiming@...il.com>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	netdev@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: future developments of usbnet

Hi,

2011/5/9 Oliver Neukum <oliver@...kum.org>:

> Do we really need to avoid it, or do we just need to recover?
> If avoidance is needed, should we use NAPI?

IMO, OOM can recover it certainly but with much cost, so we should
avoid the case. I don't think NAPI can avoid it, because NAPI will
cause skb to be allocated without any limit if there are packets
coming, still no chance left for usbnet_bh to handle and free these
SKBs.


thanks,
-- 
Ming Lei
--
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