kern/54705: codec timeout during read of register 26 with snd_t4dwave.ko

[lukas at razik.de]

>Number:         54705
>Category:       kern
>Synopsis:       codec timeout during read of register 26 with snd_t4dwave.ko
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jul 21 05:50:15 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Lukas Razik
>Release:        FreeBSD 5.1-RELEASE i386
>Organization:
>Environment:
System: FreeBSD consystor3.razik.de 5.1-RELEASE FreeBSD 5.1-RELEASE #1: Sat Jul 12 14:54:14 CEST 2003 root at consystor3.razik.de:/usr/obj/usr/src/sys/RAZIK2003-07-10 i386
Chipset: SiS630  (@ Elitegroup i-Buddie A901)


>Description:
If I try to load the snd_4dwave.ko module with '/boot/loader.conf'
I _somtimes_ get the error:
codec timeout during read of register 26

--- BEGIN 'dmesg'  ---
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD 5.1-RELEASE #1: Sat Jul 12 14:54:14 CEST 2003
    root at consystor3.razik.de:/usr/obj/usr/src/sys/RAZIK2003-07-10
Preloaded elf kernel "/boot/kernel/kernel" at 0xc04c4000.
Preloaded elf module "/boot/kernel/linux.ko" at 0xc04c4244.
Preloaded elf module "/boot/kernel/snd_t4dwave.ko" at 0xc04c42f0.
Preloaded elf module "/boot/kernel/snd_pcm.ko" at 0xc04c43a0.
Preloaded elf module "/boot/kernel/apm.ko" at 0xc04c444c.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc04c44f4.
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 1096447586 Hz
CPU: Intel(R) Celeron(TM) CPU                1100MHz (1096.45-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x6b1  Stepping = 1

Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory  = 251592704 (239 MB)
avail memory = 239140864 (228 MB)
Pentium Pro MTRR support enabled
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <AMIINT AMIINT08> on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 4 entries at 0xc00f82d0
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-safe"  frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x5008-0x500b on acpi0
acpi_cpu0: <CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <SIS Generic host to PCI bridge> mem 0xe0000000-0xe3ffffff at device
0.0 on pci0
atapci0: <SiS 630S UDMA100 controller> port 0xff00-0xff0f at device 0.1 on
pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
isab0: <PCI-ISA bridge> at device 1.0 on pci0
isa0: <ISA bus> on isab0
ohci0: <SiS 5571 USB controller> mem 0xdffd0000-0xdffd0fff irq 5 at device
1.2 on pci0
usb0: OHCI version 1.0, legacy support
usb0: SMM does not respond, resetting
usb0: <SiS 5571 USB controller> on ohci0
usb0: USB revision 1.0
uhub0: SiS OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1: <SiS 5571 USB controller> mem 0xdffe0000-0xdffe0fff irq 5 at device
1.3 on pci0
usb1: OHCI version 1.0, legacy support
usb1: SMM does not respond, resetting
usb1: <SiS 5571 USB controller> on ohci1
usb1: USB revision 1.0
uhub1: SiS OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 3 ports with 3 removable, self powered
pcm0: <SiS 7018> port 0xd400-0xd4ff mem 0xdfff0000-0xdfff0fff irq 11 at
device 1.4 on pci0
codec timeout writing 26, data 0
codec timeout writing 0, data 0
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
codec timeout during read of register 26
[... repeats some hundred times]
codec timeout during read of register 26
pcm0: AC97 reset timed out.
codec timeout writing 26, data 0
codec timeout during read of register 0
codec timeout during read of register 7c
codec timeout during read of register 7e
pcm0: ac97 codec invalid or not present (id == 0)
device_probe_and_attach: pcm0 attach returned 6
pci0: <simple comms> at device 1.6 (no driver attached)
pcib1: <PCIBIOS PCI-PCI bridge> at device 2.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
rl0: <RealTek 8139 10/100BaseTX> port 0xd000-0xd0ff mem
0xdffc0000-0xdffc00ff irq 10 at device 5.0 on pci0
rl0: Realtek 8139B detected. Warning, this may be unstable in autoselect
mode
rl0: Ethernet address: 00:50:eb:08:18:58
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
acpi_lid0: <Control Method Lid Switch> on acpi0
acpi_button0: <Power Button> on acpi0
acpi_acad0: <AC adapter> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
ppc0 port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
acpi_ec0: <embedded controller> port 0x66,0x62 on acpi0
orm0: <Option ROM> at iomem 0xc0000-0xcffff on isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
fdc0: cannot reserve I/O port range (6 ports)
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
Timecounters tick every 10.000 msec
acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
ad0: DMA limited to UDMA33, non-ATA66 cable or device
ad0: 19077MB <IBM-IC25N020ATCS04-0> [38760/16/63] at ata0-master UDMA33
acd0: DVD-ROM <QSI DVD-ROM SDR-081> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s3a
---  END  ---

>How-To-Repeat:
Set 'snd_t4dwave_load="YES"' in loader.conf, reboot some times and perhaps the error message occurs.

>Fix:
I don't know...

>Release-Note:
>Audit-Trail:
>Unformatted: