netdev - Re: regression due to "flush SAD/SPD generate false events"

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:	Thu, 18 Feb 2010 20:55:10 +0200
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	jamal <hadi@...erus.ca>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: regression due to "flush SAD/SPD generate false events"

On Wed, Feb 17, 2010 at 06:32:09PM -0500, jamal wrote:
> On Wed, 2010-02-17 at 18:07 -0500, jamal wrote:
> > When you flush
> > an empty table, the time goes up from about 1.5s
> > to 3 secs with pfkey. You also see the EAGAIN for
> > each flush ...
> > I am going to dig a little more ..
> 
> Here is a fix. The speed is restored (actually looks a little better
> now) - the only thing is if you try to flush an empty table we return
> -ESRCH; this seems reasonable, no? So a script like following 
> 
> ---
> #!/usr/sbin/setkey -f
> flush;
> spdflush;
> ----
> 
> will get:
> ---
> bigismall:~# time setkey -f ./setkey-sample
> The result of line 2: No such process.
> The result of line 3: No such process.

I'd expect flushing empty SAD/SPD to be exact nops. :^)
--
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