From mboxrd@z Thu Jan 1 00:00:00 1970 From: jordan Subject: Re: nvidia bug or RT bug? Date: Tue, 8 May 2012 11:46:42 -0400 Message-ID: References: <1336490100.14207.183.camel@gandalf.stny.rr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: linux-rt-users@vger.kernel.org To: Steven Rostedt Return-path: Received: from mail-ee0-f46.google.com ([74.125.83.46]:45827 "EHLO mail-ee0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755596Ab2EHPqp (ORCPT ); Tue, 8 May 2012 11:46:45 -0400 Received: by eeit10 with SMTP id t10so394515eei.19 for ; Tue, 08 May 2012 08:46:44 -0700 (PDT) In-Reply-To: <1336490100.14207.183.camel@gandalf.stny.rr.com> Sender: linux-rt-users-owner@vger.kernel.org List-ID: Thanks for the reply, Steven. ( i didn't even think i would get that) > It's both, but we don't care. Sorry. Seems that the nvidia driver is not > compatible with some of the changes that -rt has done. One is that you > can not call spinlocks after disabling preemption. If the nvidia driver > does this, it will break. I see. I know how to reproduce this issue, and how to completely avoid it from affecting me, anyway - so it's not a huge deal. It's only happened twice, in both circumstances i use using VDPAU with Adobe flash surprise, surprise!, also in both circumstances my uptime had been several days. ie: it doesn't happen very often, at all. I understand why you don't care about nvidia, but if it is a bug in RT - should it not be fixed? anyways, I will report it to nvidia once i get a chance to. it would nice if they addressed RT-related problems in their driver being as some folks do require proper/good 3d acceleration / real performance / Opengl 4.2 which (obviously) Nouveau does not provide, nor is it anywhere near providing in the foreseeable future :\ (not that this is news to anyone who has used them both). > Bring up the bug with the nvidia rt patch maintainer. That's about all > I'll say on this matter. No problem. I know the author of the patch, anyway. I just wanted some verification, rather than just making my own assumptions. take care, and thanks again. jordan