From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [Alsa-devel] Re: snd-hdsp oddities Date: Fri, 02 Jul 2004 11:40:28 +0200 Sender: linux-audio-dev-bounces-oG0YroN0ZiqENrSoib9kfje48wsgrGvP@public.gmane.org Message-ID: References: <20040702002208.KXUI17933.smtp2.fuse.net@smtp.fuse.net> <200407020216.i622GdaC002355@localhost.localdomain> Reply-To: "The Linux Audio Developers' Mailing List" Mime-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: <200407020216.i622GdaC002355-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-audio-dev-bounces-oG0YroN0ZiqENrSoib9kfje48wsgrGvP@public.gmane.org To: Paul Davis Cc: ico-rDkNP/OoUoU@public.gmane.org, alsa-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, The Linux Audio Developers' Mailing List List-Id: alsa-devel@alsa-project.org At Thu, 01 Jul 2004 22:16:39 -0400, Paul Davis wrote: > > >I am using the latest 2.6.7 kernel (tried also 2.6.5) but with hdsp I cannot s > >elect anything lower than 1024x2 buffer settings in jackd without having massi > >ve xruns. > > Give up on 2.6 for now. If you can't give up on it, then at least run > all (audio) apps with the environment variable LD_ASSUME_KERNEL set to > 2.4.19. > > When the dust settles from the kernel and NPTL, 2.6 will be more > viable. Right now, even though it works for some people, its not a > generally viable platform for realtime audio. Hmm, except for some sched policy setting problems on NPTL, I don't see bigger problem than 2.4+preempt kernel. For some people, 2.4+preempt might work _casually_ better than 2.6, but it can happen vice versa. Shouting "DON'T USE 2.6" isn't a good solution. Though, we need to inform to "set LD_ASSUME_KERNEL as a workaround"... Takashi