linux-kernel - Re: 2.6.19-rc5: known regressions (v3)

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Message-Id: <200611151135.48306.dada1@cosmosbay.com>
Date:	Wed, 15 Nov 2006 11:35:46 +0100
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Adrian Bunk <bunk@...sta.de>
Cc:	Linus Torvalds <torvalds@...l.org>, Andrew Morton <akpm@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Stephen Hemminger <shemminger@...l.org>, gregkh@...e.de,
	linux-pci@...ey.karlin.mff.cuni.cz,
	Komuro <komurojun-mbn@...ty.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Ingo Molnar <mingo@...hat.com>,
	Ernst Herzberg <earny@...4u.de>,
	Len Brown <len.brown@...el.com>,
	Andre Noll <maan@...temlinux.org>, Andi Kleen <ak@...e.de>,
	discuss@...-64.org, Prakash Punnoor <prakash@...noor.de>,
	phil.el@...adoo.fr, oprofile-list@...ts.sourceforge.net,
	Alex Romosan <romosan@...orax.lbl.gov>,
	Jens Axboe <jens.axboe@...cle.com>,
	Andrey Borzenkov <arvidjaar@...l.ru>,
	Alan Stern <stern@...land.harvard.edu>,
	linux-usb-devel@...ts.sourceforge.net
Subject: Re: 2.6.19-rc5: known regressions (v3)

On Wednesday 15 November 2006 11:21, Adrian Bunk wrote:

> Subject    : x86_64: oprofile doesn't work
> References : http://lkml.org/lkml/2006/10/27/3
> Submitter  : Prakash Punnoor <prakash@...noor.de>
> Status     : unknown
>

I confirm a got this one too.
On a working kernel on an Opteron, we have normally 4 directories 
in /dev/oprofile :

# ls -ld /dev/oprofile/?
drwxr-xr-x 1 root root 0 15. Nov 12:38 /dev/oprofile/0
drwxr-xr-x 1 root root 0 15. Nov 12:38 /dev/oprofile/1
drwxr-xr-x 1 root root 0 15. Nov 12:38 /dev/oprofile/2
drwxr-xr-x 1 root root 0 15. Nov 12:38 /dev/oprofile/3

With linux-2.6.19-rc5, the first one (0) is missing and we get 1,2,3

Maybe the 'bug' is in oprofile tools, that currently expect to find '0'

Eric
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