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SubjectUDMA causes IDE corruption on Shuttle AK32L mobo (VIA KT266A), kernel 2.4.1[89]
From
Date
Hi,
I'm experiencing corrupted writes to IDE disks using a Shuttle AK32
V2.1 motherboard, Athlon XP1800+, 256Mb DDR RAM when DMA is enabled.
Disabling DMA using `hdparm -d0 /dev/hda` fixes this. I have tried
two different hard disks, so I don't think that it is a fault with
the drive itself.

I have seen the behaviour using the stock 2.4.18 kernel from Mandrake
8.2. and the 2.4.19 kernel from Mandrake 9.0:
Linux version 2.4.19-16mdk (quintela@bi.mandrakesoft.com) (gcc version
3.2 (Mandrake Linux 9.0 3.2-1mdk)) #1 Fri Sep 20 18:15:05 CEST 2002

There are no log entries in /var/log/messages or /var/log/syslog when
these faulty writes take place to indicate that there are any problems
but copying a large file and checking it's md5sum shows it to be
damaged.

Below is the output of various commands / logs which may be relevant.

Regards,
Jim Halfpenny

########################
Startup log messages (/var/log/messages):
Nov 24 12:24:47 fox kernel: ide: Assuming 33MHz system bus speed for PIO
modes; override with idebus=xx
Nov 24 12:24:47 fox kernel: VP_IDE: IDE controller on PCI bus 00 dev 89
Nov 24 12:24:47 fox kernel: PCI: No IRQ known for interrupt pin A of
device 00:11.1. Please try using pci=biosirq.
Nov 24 12:24:47 fox kernel: VP_IDE: chipset revision 6
Nov 24 12:24:47 fox kernel: VP_IDE: not 100%% native mode: will probe
irqs later
Nov 24 12:24:47 fox kernel: VP_IDE: VIA vt8233 (rev 00) IDE UDMA100
controller on pci00:11.1
Nov 24 12:24:47 fox kernel: ide0: BM-DMA at 0xe000-0xe007, BIOS
settings: hda:DMA, hdb:pio
Nov 24 12:24:47 fox kernel: ide1: BM-DMA at 0xe008-0xe00f, BIOS
settings: hdc:DMA, hdd:DMA
Nov 24 12:24:47 fox kernel: hda: FUJITSU MPD3130AT, ATA DISK drive
Nov 24 12:24:47 fox kernel: hdc: YAMAHA CRW8824E, ATAPI CD/DVD-ROM drive
Nov 24 12:24:47 fox kernel: hdd: MATSHITADVD-ROM SR-8585, ATAPI
CD/DVD-ROM drive
Nov 24 12:24:47 fox kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Nov 24 12:24:47 fox kernel: ide1 at 0x170-0x177,0x376 on irq 15
Nov 24 12:24:47 fox kernel: hda: 25431840 sectors (13021 MB) w/512KiB
Cache, CHS=2909/141/62, UDMA(66)
Nov 24 12:24:47 fox kernel: Partition check:
Nov 24 12:24:47 fox kernel: /dev/ide/host0/bus0/target0/lun0:<6> [PTBL]
[1583/255/63] p1 p2

########################
$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) XP 1800+
stepping : 2
cpu MHz : 1535.230
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3060.53

########################
$ cat /proc/ide/via (With DMA disabled for /dev/hda)
----------VIA BusMastering IDE Configuration----------------
Driver Version: 3.34
South Bridge: VIA vt8233
Revision: ISA 0x0 IDE 0x6
Highest DMA rate: UDMA100
BM-DMA base: 0xe000
PCI clock: 33.3MHz
Master Read Cycle IRDY: 0ws
Master Write Cycle IRDY: 0ws
BM IDE Status Register Read Retry: yes
Max DRDY Pulse Width: No limit
-----------------------Primary IDE-------Secondary IDE------
Read DMA FIFO flush: yes yes
End Sector FIFO flush: no no
Prefetch Buffer: yes yes
Post Write Buffer: yes yes
Enabled: yes yes
Simplex only: no no
Cable Type: 80w 40w
-------------------drive0----drive1----drive2----drive3-----
Transfer Mode: PIO PIO PIO PIO
Address Setup: 30ns 120ns 30ns 30ns
Cmd Active: 90ns 90ns 90ns 90ns
Cmd Recovery: 30ns 30ns 30ns 30ns
Data Active: 90ns 330ns 90ns 90ns
Data Recovery: 30ns 270ns 30ns 30ns
Cycle Time: 120ns 600ns 120ns 120ns
Transfer Rate: 16.6MB/s 3.3MB/s 16.6MB/s 16.6MB/s
########################
$ cat /proc/modules
floppy 49340 0 (autoclean)
snd-seq-midi 3680 0 (autoclean) (unused)
snd-emu10k1-synth 4220 0 (autoclean) (unused)
snd-emux-synth 25532 0 (autoclean) [snd-emu10k1-synth]
snd-seq-midi-emul 4880 0 (autoclean) [snd-emux-synth]
snd-seq-virmidi 2888 0 (autoclean) [snd-emux-synth]
snd-seq-oss 26176 0 (unused)
snd-seq-midi-event 3208 0 [snd-seq-midi snd-seq-virmidi
snd-seq-oss]
snd-seq 33264 2 [snd-seq-midi snd-emux-synth
snd-seq-midi-emul snd-seq-virmidi snd-seq-oss snd-seq-midi-event]
snd-pcm-oss 36932 0
snd-mixer-oss 9016 1 [snd-pcm-oss]
snd-emu10k1 56592 1 [snd-emu10k1-synth]
snd-pcm 55808 0 [snd-pcm-oss snd-emu10k1]
snd-timer 9964 0 [snd-seq snd-pcm]
snd-util-mem 1280 0 [snd-emux-synth snd-emu10k1]
snd-rawmidi 12864 0 [snd-seq-midi snd-seq-virmidi
snd-emu10k1]
snd-seq-device 3836 0 [snd-seq-midi snd-emu10k1-synth
snd-emux-synth snd-seq-oss snd-seq snd-emu10k1 snd-rawmidi]
snd-ac97-codec 25508 0 [snd-emu10k1]
snd-hwdep 3840 0 [snd-emu10k1]
snd 24804 0 [snd-seq-midi snd-emux-synth
snd-seq-virmidi snd-seq-oss snd-seq-midi-event snd-seq snd-pcm-oss
snd-mixer-oss snd-emu10k1 snd-pcm snd-timer snd-util-mem snd-rawmidi
snd-seq-device snd-ac97-codec snd-hwdep]
soundcore 3780 0 [snd]
ppp_async 7456 0 (unused)
ppp_generic 20064 0 [ppp_async]
slhc 5072 0 [ppp_generic]
af_packet 13000 0 (autoclean)
8139too 14472 1 (autoclean)
mii 1152 0 (autoclean) [8139too]
supermount 14340 1 (autoclean)
isofs 25652 0 (autoclean)
inflate_fs 17892 0 (autoclean) [isofs]
sr_mod 15096 0 (autoclean)
ide-cd 28712 0
cdrom 26848 0 [sr_mod ide-cd]
ide-scsi 8212 0
usb-uhci 21676 0 (unused)
usbcore 58304 1 [usb-uhci]
rtc 6560 0 (autoclean)
reiserfs 169776 5
sd_mod 11612 8
eata 20472 4
scsi_mod 91140 4 [sr_mod ide-scsi sd_mod eata]

########################
$ 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
02f8-02ff : serial(auto)
0376-0376 : ide1
03c0-03df : vesafb
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
d000-d01f : Distributed Processing Technology SmartCache/Raid I-IV
Controller
d010-d018 : EATA
d400-d4ff : Realtek Semiconductor Co., Ltd. RTL-8139/8139C
d400-d4ff : 8139too
d800-d81f : Creative Labs SB Live! EMU10k1
d800-d81f : EMU10K1
dc00-dc07 : Creative Labs SB Live! MIDI/Game Port
e000-e00f : VIA Technologies, Inc. Bus Master IDE
e000-e007 : ide0
e008-e00f : ide1
e400-e41f : VIA Technologies, Inc. UHCI USB
e400-e41f : usb-uhci
e800-e81f : VIA Technologies, Inc. UHCI USB (#2)
e800-e81f : usb-uhci
ec00-ec1f : VIA Technologies, Inc. UHCI USB (#3)
ec00-ec1f : usb-uhci


$ cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000cc000-000ccfff : Extension ROM
000f0000-000fffff : System ROM
00100000-0fffffff : System RAM
00100000-0022614c : Kernel code
0022614d-0029547f : Kernel data
e0000000-e3ffffff : VIA Technologies, Inc. VT8367 [KT266]
e4000000-e5ffffff : PCI Bus #01
e4000000-e5ffffff : nVidia Corporation Vanta [NV6]
e4000000-e4ffffff : vesafb
e6000000-e7ffffff : PCI Bus #01
e6000000-e6ffffff : nVidia Corporation Vanta [NV6]
e9000000-e90000ff : Realtek Semiconductor Co., Ltd. RTL-8139/8139C
e9000000-e90000ff : 8139too
ffff0000-ffffffff : reserved


# lspci -vvv
00:00.0 Host bridge: VIA Technologies, Inc. VT8367 [KT266]
Subsystem: VIA Technologies, Inc. VT8367 [KT266]
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: 8
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2,x4
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
Capabilities: [c0] 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-
00:01.0 PCI bridge: VIA Technologies, Inc. VT8367 [KT266 AGP] (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: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: e6000000-e7ffffff
Prefetchable memory behind bridge: e4000000-e5ffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
Capabilities: [80] 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-
00:09.0 SCSI storage controller: Distributed Processing Technology
SmartCache/Raid I-IV Controller (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: 32 (1000ns min, 2000ns max), cache line size 08
Interrupt: pin A routed to IRQ 11
BIST result: 00
Region 0: I/O ports at d000 [size=32]
Expansion ROM at <unassigned> [disabled] [size=32K]

00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C (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: 32 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at d400 [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=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:0b.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev
07)
Subsystem: Creative Labs CT4780 SBLive! Value
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: 32 (500ns min, 5000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at d800 [size=32]
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-

00:0b.1 Input device controller: Creative Labs SB Live! MIDI/Game Port
(rev 07)
Subsystem: Creative Labs Gameport Joystick
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: 32
Region 0: I/O ports at dc00 [size=8]
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-

00:11.0 ISA bridge: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
Subsystem: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
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
Capabilities: [c0] 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-

00:11.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06)
(prog-if 8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc. Bus Master IDE
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: 32
Interrupt: pin A routed to IRQ 0
Region 4: I/O ports at e000 [size=16]
Capabilities: [c0] 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-

00:11.2 USB Controller: VIA Technologies, Inc. USB (rev 1b) (prog-if 00
[UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
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: 32, cache line size 08
Interrupt: pin D routed to IRQ 9
Region 4: I/O ports at e400 [size=32]
Capabilities: [80] 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-

00:11.3 USB Controller: VIA Technologies, Inc. USB (rev 1b) (prog-if 00
[UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
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: 32, cache line size 08
Interrupt: pin D routed to IRQ 9
Region 4: I/O ports at e800 [size=32]
Capabilities: [80] 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-

00:11.4 USB Controller: VIA Technologies, Inc. USB (rev 1b) (prog-if 00
[UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
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: 32, cache line size 08
Interrupt: pin D routed to IRQ 9
Region 4: I/O ports at ec00 [size=32]
Capabilities: [80] 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-

01:00.0 VGA compatible controller: nVidia Corporation NV6 [Vanta] (rev
15) (prog-if 00 [VGA])
Subsystem: Micro-star International Co Ltd MSI-8808
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: 32 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at e6000000 (32-bit, non-prefetchable)
[size=16M]
Region 1: Memory at e4000000 (32-bit, prefetchable) [size=32M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [60] 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: [44] AGP version 2.0
Status: RQ=31 SBA- 64bit- FW- Rate=x1,x2,x4
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>

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