linux-kernel - Re: [tip:perf/core] perf/x86/intel: Clean-up/reduce PEBS code

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] [day] [month] [year] [list]

Message-ID: <20130916160921.GX18242@two.firstfloor.org>
Date:	Mon, 16 Sep 2013 18:09:21 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.org>, mingo@...nel.org, hpa@...or.com,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perf/core] perf/x86/intel: Clean-up/reduce PEBS code

>  
>  	/*
>  	 * Should not happen, we program the threshold at 1 and do not
>  	 * set a reset value.
>  	 */
> -	WARN_ONCE(n > x86_pmu.max_pebs_events,
> -		  "Unexpected number of pebs records %d\n", n);
> +	WARN_ONCE(top - at > x86_pmu.max_pebs_events * x86_pmu.pebs_record_size,

That should work yes.

-Andi
--
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/