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Date:      Wed, 4 Jan 2006 02:28:30 +0100
From:      Simon Barner <barner@FreeBSD.org>
To:        Ariff Abdullah <skywizard@MyBSD.org.my>
Cc:        freebsd-multimedia@FreeBSD.org
Subject:   Re: snd_solo broken after big MFC to RELENG_6
Message-ID:  <20060104012830.GA839@zi025.glh.mhn.de>
In-Reply-To: <20060104080453.71592e1f.skywizard@MyBSD.org.my>
References:  <20060103213654.GA1039@zi025.glh.mhn.de> <20060104055721.4182120e.skywizard@MyBSD.org.my> <20060103225947.GA2815@zi025.glh.mhn.de> <20060104073903.1c21146e.skywizard@MyBSD.org.my> <20060103235205.GA1099@zi025.glh.mhn.de> <20060104080453.71592e1f.skywizard@MyBSD.org.my>

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> The good thing about recent MFC is to expose varying degree of
> mistakes within specific driver, and hopefully this is one of them.
>=20
> Try again, patch against solo.c:
>=20
>   http://people.freebsd.org/~ariff/test/solo.c.diff

Great, this did the trick. However, vchans still don't work. When
I set hw.snd.maxautovchans to some value > 0, I get the following
error when loading the module (or during the boot with the value set
in /boot/loader.conf):

pcm0: vchan_create(pcm0:play:0) =3D=3D 45

I fear that means that the card simply doesn't support it... but I
can live with that.

The reason why I updated to RELENG_6 was, that I wanted to get rid
of the clicks that disturbed audio output under I/O load. Even selecting
an mbox with a few thousand messages in mutt is enough. OTOH I can
extract the firefox tarball twice with two pararell processes, and
I get much less clicking... strange. Perhaps the CPU is to slow to
keep up with decompressing, so the I/O load is to low...

I increased hw.snd.pcm0.buffersize to 32768 with an entry in
/boot/device.hints, but I don't think it improved the situation a lot.
Setting it to 65536 gave me warings on the console, so I better
turned it back:

kernel: DMA count reg bogus: cff8 & cff8

Are there any more knobs to tweak, or do I have to life with a suboptimal
sound experience on old and cr*ppy hardware (see attached dmesg).

Here's the output of cat /dev/sndstat when I hear the clicking (when=20
copying around my distfiles).

FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <ESS Solo-1 (unknown vendor)> at io 0xb000,0xb400,0xb800 irq 10 kld s=
nd_solo (1p/1r/0v channels default)
	[pcm0:play:0]: spd 44100, fmt 0x10000010, flags 0x00001030, 0x00000000, pi=
d 1105
	interrupts 5273, underruns 0, ready 131048
	{userland} -> feeder_root(0x10000010) -> {hardware}
	[pcm0:record:0]: spd 0, fmt 0x00000000/0x00000008, flags 0x00000000, 0x000=
00000
	interrupts 0, overruns 0, hfree 32768, sfree 0
	{hardware} -> feeder_root(0x00000000) -> {userland}

>=20
> I have few more ninja tricks if that doesn't work.

:-) Does not seem to be necessary. Thank you very much for quick help!

--=20
Best regards / Viele Gr=FC=DFe,                             barner@FreeBSD.=
org
 Simon Barner                                                barner@gmx.de

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Copyright (c) 1992-2005 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 6.0-STABLE #0: Tue Jan  3 18:26:47 CET 2006
    root@zi025.glh.mhn.de:/usr/obj/usr/src/sys/KISTE
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD-K6(tm) 3D+ Processor (400.91-MHz 586-class CPU)
  Origin =3D "AuthenticAMD"  Id =3D 0x591  Stepping =3D 1
  Features=3D0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX>
  AMD Features=3D0x80000800<SYSCALL,3DNow>
real memory  =3D 268435456 (256 MB)
avail memory =3D 256622592 (244 MB)
K6-family MTRR support enabled (2 registers)
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
cpu0 on motherboard
pcib0: <VIA 82C598MVP (Apollo MVP3) host bridge> pcibus 0 on motherboard
pir0: <PCI Interrupt Routing Table: 6 Entries> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 82C586B UDMA33 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177=
,0x376,0xa000-0xa00f at device 7.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <serial bus, USB> at device 7.2 (no driver attached)
pci0: <network, ethernet> at device 17.0 (no driver attached)
pci0: <network, ethernet> at device 19.0 (no driver attached)
pcm0: <ESS Solo-1 (unknown vendor)> port 0xb000-0xb03f,0xb400-0xb40f,0xb800=
-0xb80f,0xbc00-0xbc03,0xc000-0xc003 irq 10 at device 20.0 on pci0
pcm0: 'buffersize=3D49152' hint is not a power of 2, using 32768
pcm0: [GIANT-LOCKED]
pmtimer0 on isa0
orm0: <ISA Option ROM> at iomem 0xc0000-0xc7fff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=3D0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
fdc0: <Enhanced floppy controller> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on=
 isa0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/15 bytes threshold
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0c01> can't assign resources (memory)
unknown: <PNP0f13> can't assign resources (irq)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0700> can't assign resources (port)
unknown: <PNP0401> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
Timecounter "TSC" frequency 400911959 Hz quality 800
Timecounters tick every 10.000 msec
IP Filter: v4.1.8 initialized.  Default =3D block all, Logging =3D enabled
ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding disabled,=
 default to deny, logging disabled
ad0: 9787MB <WDC WD102AA 05.05B05> at ata0-master UDMA33
acd0: CDRW <HL-DT-ST RW/DVD GCC-4120B/2.02> at ata1-master PIO4
ad3: 117246MB <Maxtor 6Y120L0 YAR41BW0> at ata1-slave UDMA33
Trying to mount root from ufs:/dev/ad0s1a
xl0: <3Com 3c905-TX Fast Etherlink XL> port 0xac00-0xac3f irq 5 at device 1=
9.0 on pci0
xl0: Ethernet address: 00:60:08:4a:00:e5
miibus0: <MII bus> on xl0
nsphy0: <DP83840 10/100 media interface> on miibus0
nsphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl0: <RealTek 8139 10/100BaseTX> port 0xa800-0xa8ff mem 0xe5000000-0xe50000=
ff irq 11 at device 17.0 on pci0
rl0: Ethernet address: 00:50:22:b1:03:d4
miibus1: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus1
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
cd0 at ata1 bus 0 target 0 lun 0
cd0: <HL-DT-ST RW/DVD GCC-4120B 2.02> Removable CD-ROM SCSI-0 device=20
cd0: 16.000MB/s transfers

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