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: <1236280076.5187.403.camel@laptop>
Date:	Thu, 05 Mar 2009 20:07:56 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Jaswinder Singh Rajput <jaswinder@...nel.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] perfcounters: IRQ and NMI support on AMD CPUs

On Fri, 2009-03-06 at 00:26 +0530, Jaswinder Singh Rajput wrote:
> On Thu, 2009-03-05 at 19:45 +0100, Peter Zijlstra wrote:
> > On Fri, 2009-03-06 at 00:02 +0530, Jaswinder Singh Rajput wrote:
> > > 
> > > Any how with this patch on my 64 bit AMD box I am getting:
> > > 
> > > [jaswinder@...v5 perfcounters]$ ./perfstat -e 0,1,2,3 ls > /dev/null 
> > > 
> > >  Performance counter stats for 'ls':
> > > 
> > > perfstat: perfstat.c:415: main: Assertion `res == sizeof(single_count)'
> > > failed.
> > > Aborted
> > > [jaswinder@...v5 perfcounters]$ 
> > > 
> > > [root@...v5 perfcounters]# ./kerneltop 
> > > KernelTop refresh period: 2 seconds
> > > kerneltop: kerneltop.c:883: main: Assertion `res == sizeof(ip)' failed.
> > > Aborted
> > > [root@...v5 perfcounters]#
> > 
> > Ah, I think you will need a fresh copy of both utilities, Paul recently
> > changed the ABI.
> > 
> > http://people.redhat.com/mingo/perfcounters/
> > 
> > Contains the latest IIRC
> > 
> 
> With fresh copy, perfstat is working.
> 
> But kerneltop is still not working and I am not getting any NMI Interrupts.

What does your dmegs look like?

Mine read like:

[    0.012002] AMD Performance Monitoring support detected.
[    0.013002] ... num counters:    4
[    0.014001] ... value mask:      0000ffffffffffff
[    0.015001] ... fixed counters:  0
[    0.016001] ... counter mask:    000000000000000f

and its generating IRQs:

CNT:     168612     166040   Performance counter interrupts


--
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ