From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751129AbaHIEg6 (ORCPT ); Sat, 9 Aug 2014 00:36:58 -0400 Received: from homie.mail.dreamhost.com ([208.97.132.208]:39425 "EHLO homiemail-a99.g.dreamhost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750798AbaHIEgz (ORCPT ); Sat, 9 Aug 2014 00:36:55 -0400 X-Greylist: delayed 91885 seconds by postgrey-1.27 at vger.kernel.org; Sat, 09 Aug 2014 00:36:55 EDT From: =?utf-8?B?56mN5Li55bC8?= Dan Jacobson To: Randy Dunlap Cc: linux-kernel@vger.kernel.org Subject: Re: disable "Call Trace:" References: <877g2jznnt.fsf@jidanni.org> Date: Sat, 09 Aug 2014 12:36:52 +0800 Message-ID: <87y4uyp9cr.fsf@jidanni.org> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "RD" == Randy Dunlap writes: RD> When would you want to disable it? at kernel boot time (as a boot option) RD> or sometime later? RD> But would you only want to disable Call Trace: on panics or any time that a RD> call trace might be printed? and would disabling call trace also disable RD> the raw stack dump and Code: output, or literally just the call trace? All I know is e.g., somehow something went wrong and the user finds himself unable to boot and unable to read the reason, as Linux is famous for not having a way to scroll messages that have flown off the screen and boot_delay= doesn't work good and he doesn't own another terminal he can plug into a port or even have a port etc. etc. etc. And he is sitting there and there is the reason, the main body of which has just flown off the screen. All pushed off due to this (useless to him) "Call Trace:" and some other hex stuff lying above "Call Trace". So if only he could please be able to, there hitting "e" in Grub, be able to add so "call_trace=no_thanks" "other_hex_stuff=no_thanks" to that linux command line, so then on the next run there will be something more left upon the screen! Thank you!