Re: Linux 2.6.10-ac9

From: Sami Farin (7atbggg02_at_sneakemail.com)
Date: 01/14/05

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Reply: Alan Cox: "Re: Linux 2.6.10-ac9"
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Date:	Fri, 14 Jan 2005 05:01:36 +0200
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>

On Thu, Jan 13, 2005 at 05:23:29PM +0000, Alan Cox wrote:
> Arjan van de Ven is now building RPMS of the kernel and those can be found
> in the RPM subdirectory and should be yum-able. Expect the RPMS to lag the
> diff a little as the RPM builds and tests do take time.
>
>
> Key: o - only in -ac
> * - already fixed upstream
> X - discarded later as wrong
> + - ac specific (fix not relevant to non -ac)
>
> 2.6.10-ac9
> * 2.6.10 variant of the stack race fix (Alan Cox)
> | Found by Paul Staretz
> * Stronger ELF validity checks (Solar Designer)
> * Add ATI SATA identifiers (Frederick Li)
> o Update ATI PATA/SATA support (Frederick Li)
> * Audit fixups (Steve Grubb, Roger Luethi)
> * FPU/signal handling fix (Bodo Stroesser)
> * nForce2 APIC/LAPIC errata fixup (Prakash Punnoor)
> * Swap aacraid fix in -ac with 2.6.11rc base fix (Tom Coughlan)
> * Connnection track/rst fix (Martin Josefsson)
> o Format ide printk's more nicely (Gunther Mayer)
> o Stallion serial resurrection (part one) (Wayne Meissner)
> * Fix nls_ascii (Ogawa Hirofumi)
> * Count writeback pages in nr_scanned (Rik van Riel)
> | OOM fixing
> o Revert ac97_patch changes (Jules Villard)
> | with this change many users get no sound out
> o Correct handling of some module parameter (Rusty Russell)
> errors

with 2.6.10-ac7/ac8 I did not have problems with sound,
but with ac9 I got these problems:

at boot, sometimes /dev/dsp and /dev/snd/pcm* do not get created,
despite modules are loaded and /proc/interrupts shows IRQ 5 for
Ensoniq AudioPCI (but count stays at 0).
(I just upgraded to udev-0.50, too...)

first, full lspci output:

00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
        Latency: 64
        Region 0: Memory at e0000000 (32-bit, prefetchable) [size=64M]
        Capabilities: [a0] AGP version 1.0
                Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2
                Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>
00: 86 80 90 71 06 00 10 22 03 00 00 06 00 40 00 00
10: 08 00 00 e0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 a0 00 00 00 00 00 00 00 00 00 00 00

00:01.0 PCI bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 03) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
        I/O behind bridge: 0000d000-0000dfff
        Memory behind bridge: e4000000-e7ffffff
        Prefetchable memory behind bridge: e8000000-e8ffffff
        Secondary status: 66Mhz+ FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B+
00: 86 80 91 71 07 01 20 02 03 00 04 06 00 40 01 00
10: 00 00 00 00 00 00 00 00 00 01 01 40 d0 d0 a0 22
20: 00 e4 f0 e7 00 e8 f0 e8 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 88 00

00:07.0 ISA bridge: Intel Corp. 82371AB/EB/MB PIIX4 ISA (rev 02)
        Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
00: 86 80 10 71 0f 00 80 02 02 00 01 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:07.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01) (prog-if 80 [Master])
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64
        Region 4: I/O ports at f000 [size=16]
00: 86 80 11 71 05 00 80 02 01 80 01 01 00 40 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:07.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01) (prog-if 00 [UHCI])
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64
        Interrupt: pin D routed to IRQ 11
        Region 4: I/O ports at e000 [size=32]
00: 86 80 12 71 05 00 80 02 01 00 03 0c 00 40 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 04 00 00

00:07.3 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 02)
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin ? routed to IRQ 9
00: 86 80 13 71 03 00 80 02 02 00 80 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
        Subsystem: Surecom Technology EP-320X-R
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (8000ns min, 16000ns max)
        Interrupt: pin A routed to IRQ 11
        Region 0: I/O ports at e400 [size=256]
        Region 1: Memory at e9000000 (32-bit, non-prefetchable) [size=256]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: ec 10 39 81 07 00 90 02 10 00 00 02 00 40 00 00
10: 01 e4 00 00 00 00 00 e9 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 bd 10 20 03
30: 00 00 00 00 50 00 00 00 00 00 00 00 0b 01 20 40

00:0b.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02)
        Subsystem: Hauppauge computer works Inc. WinTV Series
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (4000ns min, 10000ns max)
        Interrupt: pin A routed to IRQ 9
        Region 0: Memory at e9001000 (32-bit, prefetchable) [size=4K]
00: 9e 10 6e 03 06 00 80 02 02 00 00 04 00 40 80 00
10: 08 10 00 e9 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 70 00 eb 13
30: 00 00 00 00 00 00 00 00 00 00 00 00 09 01 10 28

00:0b.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02)
        Subsystem: Hauppauge computer works Inc. WinTV Series
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (1000ns min, 63750ns max)
        Interrupt: pin A routed to IRQ 9
        Region 0: Memory at e9002000 (32-bit, prefetchable) [size=4K]
00: 9e 10 78 08 06 00 80 02 02 00 80 04 00 40 80 00
10: 08 20 00 e9 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 70 00 eb 13
30: 00 00 00 00 00 00 00 00 00 00 00 00 09 01 04 ff

00:0d.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 06)
        Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (3000ns min, 32000ns max)
        Interrupt: pin A routed to IRQ 5
        Region 0: I/O ports at e800 [size=64]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA PME(D0+,D1-,D2+,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 74 12 71 13 05 00 10 04 06 00 01 04 00 40 00 00
10: 01 e8 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 74 12 71 13
30: 00 00 00 00 dc 00 00 00 00 00 00 00 05 01 0c 80

00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
        Subsystem: Realtek Semiconductor Co., Ltd. RT8139
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (8000ns min, 16000ns max)
        Interrupt: pin A routed to IRQ 10
        Region 0: I/O ports at ec00 [size=256]
        Region 1: Memory at e9003000 (32-bit, non-prefetchable) [size=256]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: ec 10 39 81 07 00 90 02 10 00 00 02 00 40 00 00
10: 01 ec 00 00 00 30 00 e9 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 ec 10 39 81
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 20 40

01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP (rev 01) (prog-if 00 [VGA])
        Subsystem: Matrox Graphics, Inc. Millennium G200 AGP
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (4000ns min, 8000ns max), Cache Line Size 08
        Interrupt: pin A routed to IRQ 0
        Region 0: Memory at e8000000 (32-bit, prefetchable) [size=16M]
        Region 1: Memory at e4000000 (32-bit, non-prefetchable) [size=16K]
        Region 2: Memory at e5000000 (32-bit, non-prefetchable) [size=8M]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [f0] AGP version 1.0
                Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2
                Command: RQ=32 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x2
00: 2b 10 21 05 07 00 90 02 01 00 00 03 08 40 00 00
10: 08 00 00 e8 00 00 00 e4 00 00 00 e5 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 2b 10 03 ff
30: 00 00 00 00 dc 00 00 00 00 00 00 00 ff 01 10 20

at this spot I have no /dev/dsp etc.
then I reload snd_ens1371:

00:0d.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 06)
        Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR-
+ Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort+ <MAbort- >SERR- <PERR-
        Latency: 64 (3000ns min, 32000ns max)
        Interrupt: pin A routed to IRQ 5
        Region 0: I/O ports at e800 [size=64]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA PME(D0+,D1-,D2+,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
-00: 74 12 71 13 05 00 10 04 06 00 01 04 00 40 00 00
+00: 74 12 71 13 05 00 10 14 06 00 01 04 00 40 00 00
10: 01 e8 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 74 12 71 13
30: 00 00 00 00 dc 00 00 00 00 00 00 00 05 01 0c 80

I have /dev/dsp but no /dev/snd/control* so no sound.

then I remove every module related to sound.

00:0d.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 06)
        Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128
- Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort+ <MAbort- >SERR- <PERR-
- Latency: 64 (3000ns min, 32000ns max)
+ Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
+ Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort+ <MAbort+ >SERR- <PERR-
        Interrupt: pin A routed to IRQ 5
        Region 0: I/O ports at e800 [size=64]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA PME(D0+,D1-,D2+,D3hot+,D3cold-)
- Status: D0 PME-Enable- DSel=0 DScale=0 PME-
-00: 74 12 71 13 05 00 10 14 06 00 01 04 00 40 00 00
+ Status: D3 PME-Enable- DSel=0 DScale=0 PME-
+00: 74 12 71 13 01 00 10 34 06 00 01 04 00 40 00 00
10: 01 e8 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 74 12 71 13
30: 00 00 00 00 dc 00 00 00 00 00 00 00 05 01 0c 80

then I run "modprobe snd_ens1371".
I now get dsp and control, all works.

00:0d.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 06)
        Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128
- Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
+ Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort+ <MAbort+ >SERR- <PERR-
+ Latency: 64 (3000ns min, 32000ns max)
        Interrupt: pin A routed to IRQ 5
        Region 0: I/O ports at e800 [size=64]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA PME(D0+,D1-,D2+,D3hot+,D3cold-)
- Status: D3 PME-Enable- DSel=0 DScale=0 PME-
-00: 74 12 71 13 01 00 10 34 06 00 01 04 00 40 00 00
+ Status: D0 PME-Enable- DSel=0 DScale=0 PME-
+00: 74 12 71 13 05 00 10 34 06 00 01 04 00 40 00 00
10: 01 e8 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 74 12 71 13
30: 00 00 00 00 dc 00 00 00 00 00 00 00 05 01 0c 80

also, with 2.6.10 I can't disable write cache...
I could do it in 2.6.9.

# hdparm -I /dev/hda | grep "Write cache" ; hdparm -W0 /dev/hda ; hdparm -I /dev/hda | grep "Write cache"
* Write cache

/dev/hda:
setting drive write-caching to 0 (off)
* Write cache

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