linux-kernel - Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance

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: <20100323192213.GA6169@sgi.com>
Date:	Tue, 23 Mar 2010 14:22:13 -0500
From:	Robin Holt <holt@....com>
To:	Anton Starikov <ant.starikov@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge
 regression in performance

On Tue, Mar 23, 2010 at 07:25:43PM +0100, Anton Starikov wrote:
> On Mar 23, 2010, at 7:21 PM, Andrew Morton wrote:
> >> I will apply this commits to 2.6.32, I afraid current OFED (which I need also) will not work on 2.6.33+.
> >> 
> > 
> > You should be able to simply set CONFIG_RWSEM_GENERIC_SPINLOCK=n,
> > CONFIG_RWSEM_XCHGADD_ALGORITHM=y by hand, as I mentioned earlier?
> 
> Hm. I tried, but when I do "make oldconfig", then it gets rewritten, so I assume that it conflicts with some other setting from default fedora kernel config. trying to figure out which one exactly.

Have you tracked this down yet?  I just got the patches applied against
an older kernel and am running into the same issue.

Thanks,
Robin
--
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/