From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751383AbWESRWS (ORCPT ); Fri, 19 May 2006 13:22:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751399AbWESRWS (ORCPT ); Fri, 19 May 2006 13:22:18 -0400 Received: from py-out-1112.google.com ([64.233.166.179]:15444 "EHLO py-out-1112.google.com") by vger.kernel.org with ESMTP id S1751383AbWESRWS convert rfc822-to-8bit (ORCPT ); Fri, 19 May 2006 13:22:18 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=rmd/bU5/N/7YjOwGOU2G6y+JtPx8mD0Bn8lVSwECgaomg4owL5plMT8beV3kKIMdSSLnAGSUUmSjZuEHnW0go7AW9XmXP+C2NfSRO32jKMSe8PIyHV/NxfFFPHsHjIII7G/Y+9LvUTUVlDNpnJcs3b5hp+r42eChXEwG14nNH4E= Message-ID: <5bdc1c8b0605191022l7114707fjd6b3cdcfe68b97c7@mail.gmail.com> Date: Fri, 19 May 2006 10:22:17 -0700 From: "Mark Knecht" To: "Linux Kernel Mailing List" , "Ingo Molnar" Subject: 2.6.16-rt22/23 kernels hanging after registering IO schedulers MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi Ingo and others, It's been quite awhile since I wrote anything here. I have been using the 2.6.15-rt kernels for audio work on my AMD64 machine, but I haven't written much music lately so the work load has been very low. Actually I've found that for light work the standard Gentoo 2.6.16 kernel without -rt patches has been good enough for my real-time needs of late so thanks to all the kernel developers for those more results also. Working quite nicely on my system are: 2.6.15-rt18 2.6.16-gentoo-r2 Some Gentoo oriented folks created a new 'pro-audio' overlay which allows Gentoo users to build both applications and -rt kernels using normal portage methods. Here's the link: http://proaudio.tuxfamily.org/wiki/index.php?title=Main_Page Since the newest -rt kernels are part of the overlay I thought I'd give building and booting one a try. At the time the version in the overlay was 2.6.16-rt22 so I tried that. Unfortunately the boot process hangs immediately after some messages about registering IO schedulers. My method to build 2.6.16-rt22 was to emerge the source from the pro-audio overlay, copy the 2.6.15-rt18 .config file, run make oldconfig, make menuconfig, make && make modules_install, and then copy the kernel source to /boot. My method to build 2.6.16-rt23 was to download linux-2.6.16, unzip and untar, patch it with the -rt23 patch from your site, then again use the 2.6.15-rt18 .config file as in the previous paragraph. Same results. I did try changing the default IO Scheduler, as well as leaving a few out. I still hang at the same place. My guess is that it's the step immediately after registering these schedulers that's hanging but I no longer have a second computer so I cannot do the console thing with the serial cable. Sorry. Again, no serious problems for me since both 2.6.15-rt18 & 2.6.16-gentoo-r2 are working great, but I thought I should at least report this to see if there is some known thing I need to change or, if not, make sure you are aware of the problem. Here's some very basic info about the hardware lightning ~ # lspci 00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) 00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3) 00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2) 00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2) 00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3) 00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97 Audio Contro ller (rev a2) 00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev f2) 00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3) 00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3) 00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2) 00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3) 00:0b.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:0c.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTra nsport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Con troller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscella neous Control 01:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 [Radeon X300 (PCIE)] 01:00.1 Display controller: ATI Technologies Inc RV370 [Radeon X300SE] 05:06.0 Multimedia audio controller: Xilinx Corporation RME Hammerfall DSP (rev 68) 05:08.0 FireWire (IEEE 1394): Texas Instruments TSB82AA2 IEEE-1394b Link Layer C ontroller (rev 01) lightning ~ # As always, thanks for all your work on kernels for us audio folks. I'm sure we don't say thanks enough. Sorry about that. Cheers, Mark