Date: Thu, 4 Jan 2007 16:40:23 GMT From: Ricardo Nabinger Sanchez <rnsanchez@wait4.org> To: freebsd-multimedia@FreeBSD.org Subject: Re: kern/107516: emu10k1 - skips, clicks and lag after a day of heavy usage Message-ID: <200701041640.l04GeNAk043403@freefall.freebsd.org>
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The following reply was made to PR bin/107516; it has been noted by GNATS.
From: Ricardo Nabinger Sanchez <rnsanchez@wait4.org>
To: Jonathan Liu <Net147@hotmail.com>
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: kern/107516: emu10k1 - skips, clicks and lag after a day of
heavy usage
Date: Thu, 4 Jan 2007 14:10:42 -0200
On Thu, 4 Jan 2007 12:35:07 GMT
Jonathan Liu <Net147@hotmail.com> wrote:
> >Fix:
> A workaround is to restart the computer.
>
> Reloading the sound card module as follows does not fix the problem:
> kldunload snd_emu10k1
> kldunload sound
> kldload snd_emu10k1
>
> I'm thinking it might be kernel related.
> Perhaps something to do with scheduling and preemption.
>
> This problem does not ever occur in Windows XP Professional.
It happens for me rarely with OGG/MP3 files with XMMS, and pausing-unpausing
seems to "refresh" the sound buffer with good data.
But when it comes to WAV files, specially short ones and/or with different
samplings (22 kHz, 11 kHz, ...) and/or word type (8/16 bits,
signed/unsigned), I can rarely get a _correct_ playback, often clicking and
truncated (near the end of file) sound, and also happens in a random fashion
(sometimes clip, others distort, others truncate, or any combination).
Anytime, by the way.
Repeatable both with emu10k1 and emu10kx (from ports) drivers, using "play"
command (audio/sox), and either with the 4 KB buffer or larger.
Relevant info:
pcib1@pci0:1:0: class=0x060400 card=0x00000080 chip=0xb1981106 rev=0x00 hdr=0x01
vendor = 'VIA Technologies Inc'
device = 'ProSavageDDR P4X600 CPU to AGP Bridge'
class = bridge
subclass = PCI-PCI
pcm0@pci0:10:0: class=0x040100 card=0x80611102 chip=0x00021102 rev=0x07 hdr=0x00
vendor = 'Creative Labs'
device = 'EMU10000 Sound Blaster Live! (Also Live! 5.1) - OEM from DELL - CT4780'
class = multimedia
subclass = audio
emujoy0@pci0:10:1: class=0x098000 card=0x00201102 chip=0x70021102 rev=0x07 hdr=0x00
vendor = 'Creative Labs'
device = 'EMU10000 Game Port'
class = input device
isab0@pci0:17:0: class=0x060100 card=0x80ed1043 chip=0x32271106 rev=0x00 hdr=0x00
vendor = 'VIA Technologies Inc'
device = 'VT8237 PCI-to-ISA Bridge'
class = bridge
subclass = PCI-ISA
# sysctl -a | grep snd
hw.snd.report_soft_formats: 1
hw.snd.targetirqrate: 32
hw.snd.verbose: 1
hw.snd.maxautovchans: 0
hw.snd.unit: 0
hw.snd.pcm0.buffersize: 4096
hw.snd.pcm0.vchans: 0
dmesg:
pcm0: <Creative EMU10K1> port 0xd800-0xd81f at device 10.0 on pci0
pcm0: <SigmaTel STAC9708/11 AC97 Codec>
interrupts:
# vmstat -i
interrupt total rate
irq1: atkbd0 110012 1
irq6: fdc0 10 0
irq12: psm0 1167054 11
irq14: ata0 882550 8
irq15: ata1 18 0
irq16: nvidia0+ 14367427 136
irq21: uhci0 uhci* 208925 1
irq23: vr0 500321 4
cpu0: timer 210239163 1999
Total 227475480 2163
# uname -a
FreeBSD sauron.lan.box 6.1-RELEASE FreeBSD 6.1-RELEASE #0: Sun May 7 04:32:43 UTC 2006 root@opus.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
Regards.
--
Ricardo Nabinger Sanchez <rnsanchez@{gmail.com,wait4.org}>
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