linux-kernel - Re: High priority tasks break SMP balancer?

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:	Wed, 14 Nov 2007 10:39:30 -0800
From:	Micah Dowty <micah@...are.com>
To:	Cyrus Massoumi <cyrusm@....net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: High priority tasks break SMP balancer?

On Fri, Nov 09, 2007 at 04:11:03PM -0800, Micah Dowty wrote:
> It's also possible this problem doesn't occur on 2.6.17. I have only
> tested this example on 2.6.23.1 and 2.6.20 so far.

I tested a handful of kernel versions, and it looks like this is
indeed the case. As far as I can tell, this problem was introduced
between 2.6.19.7 and 2.6.20.

Looking at the diff between those versions, it looks like there were
some noteworthy changes to the SMP balancer. I'm still working on
narrowing this down further.

Thanks,
--Micah
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/