linux-kernel - Re: remove cpu hotplug bustification in cpufreq.

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: <20060722223425.c94a858e.akpm@osdl.org>
Date:	Sat, 22 Jul 2006 22:34:25 -0700
From:	Andrew Morton <akpm@...l.org>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	davej@...hat.com, linux-kernel@...r.kernel.org,
	ashok.raj@...el.com, Ingo Molnar <mingo@...e.hu>
Subject: Re: remove cpu hotplug bustification in cpufreq.

On Sat, 22 Jul 2006 18:15:32 -0700 (PDT)
Linus Torvalds <torvalds@...l.org> wrote:

> 
> 
> On Sat, 22 Jul 2006, Andrew Morton wrote:
> > 
> > It was just wrong in conception.  We should not and probably cannot fix it.
> > Let's just delete it all, then implement version 2.
> 
> Well, I just got Ashok's trial patches which turns the thing into a rwsem 
> as I outlined earlier.

Mark my words ;)

> I'll try them out. If they don't work, we should just delete the lock and 
> go totally back to square 1.

rwsem conversion has the potential to merely hide the problem.  Ingo, does
lockdep detect recursive down_read()?
-
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/