Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755736Ab0KMQS0 (ORCPT ); Sat, 13 Nov 2010 11:18:26 -0500 Received: from canuck.infradead.org ([134.117.69.58]:53007 "EHLO canuck.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754482Ab0KMQSZ convert rfc822-to-8bit (ORCPT ); Sat, 13 Nov 2010 11:18:25 -0500 Subject: Re: Oprofile bug ? From: Peter Zijlstra To: Sylvain GENEVES Cc: "oprofile-list@lists.sf.net" , "linux-kernel@vger.kernel.org" , "robert.richter" In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Sat, 13 Nov 2010 17:18:36 +0100 Message-ID: <1289665116.2084.887.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 451 Lines: 12 On Fri, 2010-11-12 at 22:11 +0100, Sylvain GENEVES wrote: > Anyone has any idea on what is happening ? Yeah, the oprofile code is terminally broken, it uses __copy_from_user_inatomic() from NMI context. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/