linux-kernel - Re: + high-res-timers-utilize-tsc-clocksource-again.patch added to -mm tree

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-next>] [day] [month] [year] [list]

Date:	Tue, 12 Dec 2006 08:46:09 -0800
From:	Daniel Walker <dwalker@...sta.com>
To:	linux-kernel@...r.kernel.org
Cc:	tglx@...utronix.de, mingo@...e.hu
Subject: Re: + high-res-timers-utilize-tsc-clocksource-again.patch added to
	-mm tree

> +
> +	if (pm == last_pm) {
> +		interval_tsc = now_tsc - last_tsc;
> +		interval_tsc *= HZ;
> +		do_div(interval_tsc, cpu_khz*1000);
> +	} else {
> +		if (pm < last_pm)
> +			pm += ACPI_PM_OVRRUN;
> +		pm_delta = pm - last_pm;
> +		interval_tsc = (((u64) pm_delta) * pm_multiplier) >> 22;
> +		do_div(interval_tsc, TICK_NSEC);
> +	}



What is this accomplishing? My TSC gets marked unstable, and it's not
unstable, in addition I have HRT off .. The else clause above just
doesn't seem right ..

Daniel

-
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/