Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 2 Mar 2001 00:35:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 2 Mar 2001 00:35:36 -0500 Received: from 204-210-5-119.san.rr.com ([204.210.5.119]:59400 "EHLO tigger.azure-n-jade.foo") by vger.kernel.org with ESMTP id ; Fri, 2 Mar 2001 00:35:21 -0500 Date: Thu, 1 Mar 2001 21:35:11 -0800 (PST) From: Gregory Ade To: linux-kernel@vger.kernel.org Subject: 2.4.2 sound [ad1848] eating cpu? Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 This may be a bit off topic, and if it is, please point me in the right direction. I have a Dell Inspiron 3500 (Cel 333a/196mb w/ the NeoMagic256AV chipset), which I've had running 2.2.14 & 2.2.16 for some time, with flawless performance. I recently upgraded to 2.4.2 (and made sure to go through the Changes.txt file to catch all the utilities, so they're all up to date), and used the same configureation optiosn for sound support as I had before in 2.2 (basically building the necessary drivers as modules again). However, with 2.4.2, whenever I try to play any sound file, be it a .wav or .mp3, I now have what sounds like static intermittently in the playback, coinciding with large cpu usage (up to 100%). These static "bursts" are of varying length, but become worse if there is any other activity on the system. Sometimes the whole machine will freeze as the sound system is outputting static, and then seems to pulse: a little pop from the speakers, and an instant of system responsiveness followed by a few more seconds of freeze. I'm running vanilla 2.4.2 sources + the 2000-02-15 snapshot of FreeS/WAN. This problem was present before I patched FreeS/WAN in, and I can switch back to a kernel without ipsec if needed for testing. some (what I hope is) relevant information: root@gopher(pts/2):/ 139 # lsmod Module Size Used by mpu401 18704 0 (unused) ad1848 16736 0 sound 55920 0 [mpu401 ad1848] soundcore 3920 4 [sound] serial_cs 5744 0 (unused) usb-uhci 21744 0 (unused) 3c575_cb 20352 2 cb_enabler 2864 2 [3c575_cb] ds 6960 2 [serial_cs cb_enabler] i82365 24208 2 pcmcia_core 44960 0 [serial_cs cb_enabler ds i82365] serial 42576 0 (autoclean) [serial_cs] usbcore 46576 1 (autoclean) [usb-uhci] root@gopher(pts/2):/ 140 # cat /proc/dma 0: MS Sound System 1: MS Sound System 4: cascade root@gopher(pts/2):/ 141 # cat /proc/interrupts CPU0 0: 314837 XT-PIC timer 1: 277 XT-PIC keyboard 2: 0 XT-PIC cascade 3: 76748 XT-PIC eth0 5: 2483 XT-PIC MS Sound System 8: 1 XT-PIC rtc 11: 0 XT-PIC usb-uhci 12: 2520 XT-PIC PS/2 Mouse 14: 224597 XT-PIC ide0 15: 4 XT-PIC ide1 NMI: 0 ERR: 2 root@gopher(pts/2):/ 142 # cat /proc/ioports 0000-001f : dma1 0020-003f : pic1 0040-005f : timer 0060-006f : keyboard 0070-007f : rtc 0080-008f : dma page reg 00a0-00bf : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : ide1 01f0-01f7 : ide0 0280-02ff : cb_enabler 0376-0376 : ide1 03c0-03df : vga+ 03e8-03ef : serial(set) 03f6-03f6 : ide0 03f8-03ff : serial(auto) 0530-0533 : WSS config 0534-0537 : MS Sound System 0cf8-0cff : PCI conf1 2180-219f : Intel Corporation 82371AB PIIX4 ACPI 8000-803f : Intel Corporation 82371AB PIIX4 ACPI fcd0-fcdf : Intel Corporation 82371AB PIIX4 IDE fce0-fcff : Intel Corporation 82371AB PIIX4 USB fce0-fcff : usb-uhci root@gopher(pts/2):/ 143 # I'm really at a loss as to what might be wrong... all the hardware settings look to be the same as when I was running 2.2. In case anyone's wondering why I'm running the NeoMagic256AV chipset in Ad-Lib emulation, it's because it worked =), and because several other websites of people who run this same type of laptop said they were able to get sound working. I've tried the 2.2.x NM256 drivers, and they only ended up locking the machine quite hard, so I haven't wanted to try them in 2.4.2 yet. Again, if anyone knows where would be a better place for me to look for help, please tell me. Thanks. - -- Gregory K. Ade | http://bigbrother.net/~gkade GPG ID/FP: EAF4844B | F4FCCC7D613DBDBF5365 E3D079050460EAF4844B -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.1 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE6nzEUeQUEYOr0hEsRAhj3AJ9y7JQIeAS4dgGN5t0V+oJHa6XtqQCg0UYa fuHXrwQWJLULGWtoxXAoqqY= =yQW/ -----END PGP SIGNATURE----- - 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/