linux-kernel - Re: Another preempt folding issue? (maybe bisect)

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 for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140214162130.GM27965@twins.programming.kicks-ass.net>
Date:	Fri, 14 Feb 2014 17:21:30 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Stefan Bader <stefan.bader@...onical.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	kvm@...r.kernel.org, Marcelo Tosatti <mtosatti@...hat.com>,
	MASAO TAKAHASHI <masao-takahashi@...no.co.jp>,
	Joerg Roedel <joro@...tes.org>
Subject: Re: Another preempt folding issue? (maybe bisect)

On Fri, Feb 14, 2014 at 04:21:32PM +0100, Borislav Petkov wrote:
> Oh, and just in case this is relatively easy to reproduce and in case we
> don't have any other idea, bisection might be another option. I'm not
> saying you should do it right away - I'm just putting it on the table...

I'm fairly sure you're going to hit the patch that introduced the whole
per-cpu preemption thing. Before that not receiving the IPI wasn't as
bad as it is now.
--
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/