Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753753Ab0HBNx1 (ORCPT ); Mon, 2 Aug 2010 09:53:27 -0400 Received: from mail-gw0-f46.google.com ([74.125.83.46]:50741 "EHLO mail-gw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753598Ab0HBNxZ convert rfc822-to-8bit (ORCPT ); Mon, 2 Aug 2010 09:53:25 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=ObnpNi2Bt54czFprUKiMQrCeZePUni9ry6pHiNKHFBWICOv04wHhsx6gBOyZqU1zOa m7CJNqmNprqNrSSbZL6YyH4QBSfT6pXrosvKsN0K0SUDEDMJwFgfulZqfH3QSxZrXbtA gycIYh8uaR2tRnkYUN3OFVSRkMAZ6892Rre+U= MIME-Version: 1.0 In-Reply-To: <20100802134705.GA2836@redhat.com> References: <20100802134705.GA2836@redhat.com> Date: Mon, 2 Aug 2010 16:53:24 +0300 X-Google-Sender-Auth: DbNLk1lERHx1VZ0SykTzpg6NqM8 Message-ID: Subject: Re: Boot-time dynamic debugging? From: Pekka Enberg To: Jason Baron Cc: Greg KH , Andrew Morton , LKML , trenn@suse.de Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1333 Lines: 30 > On Sun, Aug 01, 2010 at 03:10:40PM +0300, Pekka Enberg wrote: >> Commit 346e15beb5343c2eb8216d820f2ed8f150822b08 ("driver core: basic >> infrastructure for per-module dynamic debug messages") removed >> "dynamic_printk" kernel parameter from the dynamic debugging subsystem >> (and forgot to update Documentation/kernel-parameters.txt). How can I >> use the new subsystem for enabling boot-time dev_dbg() calls for >> non-modular kernels? On Mon, Aug 2, 2010 at 4:47 PM, Jason Baron wrote: > Right now, you can not enable them dynamically from the boot command > line (only via the debugfs file). However, Thomas Renninger, has posted > a series to add back the boot-time functionality, see: > > Subject: ? ?[patch 0/3] Dynamic Debug providing early boot debug messages via > boot parameter > http://marc.info/?l=linux-kernel&m=127970474426120&w=2 > > So I intend to queue those up for 2.6.36, and also update the > documentation. Oh, great! Acked-by: Pekka Enberg Btw, can you easily enable all dev_dbg() calls with the boot parameter? -- 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/