Hello,
I recently sent an eMail to you, reporting a bug. I got two
answers. One talking about a wrong used cable. Another
talking about problems with ATI graphic cards and (U)DMA. My
ATI is an AGP-card so the answer couldnīt help me.
I changed the cable, although I used the correct cable before
and nothing has changed. I still have problems using DMA
Mode (33 and 66 MB/sec). So I think there must be an other
reason for the DMA problem. The anser-eMails are at the end
of this mail.
I compiled the kernel with CONFIG_BLK_DEV_VIA82CXXX=yes, but
this does not help anything.
Do you think it is the hardware or the kernel? Can I damage
my system using (U)DMA mode although I get errors?
I used the formular to produce a bug-report:
1.) See subject
2.) I have trouble using DMA mode with my Siemens Fujitsu
harddisk on a NMC 6vcx Motherboard. I compiled the kernel
with DMA support, multi mode VIA chipset support and booting
DMA by default when available.
I used the command "updatedb" and "find" and "bonnie" to have much
read access. No problem occurs.
I used xmms to convert mp3-files into wav. There I get many
errors of the following:
hda: dma_intr status=0x51 {DriveReadySeekComplete Error}
hda: dma_intr error=0x84 {DriveStatusError BadCRC}
I do not want to run the harddisk in PIO mode. I used hdparm
to change some settings (infos from SuSE Support database)
hdparm -d 1 -c 0 -X66 /dev/hda (also without -X66)
and
hdparm -d 1 -c 1 -X66 /dev/hda (also without -X66)
at least
hdparm -d 0 /dev/hda
Nothing changed. (only performance maybe)
3.) Keywords: (U)DMA
4.) Linux version 2.4.0-test11 (root@informatik) (gcc
version 2.95.2 19991024 (release)) #15 Wed Nov 22 18:40:38
CET 2000
5.) No Oops Output available
6.) Xmms is able to produce the error by using the
diskwriter modul
7.) Environment:
-1.) Kernel modules 2.3.20
Gnu C 2.95.2
Gnu Make 3.79.1
Binutils 2.9.5.0.24
Linux C Library x 1 root root 4070406 Jul
30 21:41 /lib/libc.so.6
Dynamic linker ldd (GNU libc) 2.1.3
Procps 2.0.6
Mount 2.10q
Net-tools 1.56
Kbd 0.99
Sh-utils 2.0
Modules Loaded snd-pcm-oss snd-pcm-plugin
snd-mixer-oss tuner tvaudio bttv videodev ppp_deflate
bsd_comp ppp_async ppp_generic snd-card-via686a snd-pcm
snd-timer snd-mpu401-uart snd-rawmidi snd-seq-device
snd-ac97-codec snd-mixer snd ipv6 3c59x hisax isdn slhc
AM53C974 ide-scsi usb-uhci usbcore
-2.) processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 5
model name : Pentium II (Deschutes)
stepping : 2
cpu MHz : 350.000809
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
features : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge
mca cmov pat pse36 mmx fxsr
bogomips : 699.60
-3.) snd-pcm-oss 18352 0 (autoclean)
snd-pcm-plugin 14672 0 (autoclean) [snd-pcm-oss]
snd-mixer-oss 5120 1 (autoclean) [snd-pcm-oss]
tuner 3232 1 (autoclean)
tvaudio 7792 0 (autoclean) (unused)
bttv 54768 1 (autoclean)
videodev 4512 3 (autoclean) [bttv]
ppp_deflate 39200 0 (autoclean)
bsd_comp 4160 0 (autoclean)
ppp_async 6224 1 (autoclean)
ppp_generic 13024 3 (autoclean) [ppp_deflate
bsd_comp ppp_async]
snd-card-via686a 7408 1 (autoclean)
snd-pcm 31776 0 (autoclean) [snd-pcm-oss
snd-pcm-plugin snd-card-via686a]
snd-timer 8512 0 (autoclean) [snd-pcm]
snd-mpu401-uart 2640 0 (autoclean) [snd-card-via686a]
snd-rawmidi 10144 0 (autoclean) [snd-mpu401-uart]
snd-seq-device 3744 0 (autoclean) [snd-rawmidi]
snd-ac97-codec 24288 0 (autoclean) [snd-card-via686a]
snd-mixer 24208 0 (autoclean) [snd-mixer-oss snd-ac97-codec]
snd 36384 1 [snd-pcm-oss snd-pcm-plugin
snd-mixer-oss snd-card-via686a snd-pcm snd-timer
snd-mpu401-uart snd-rawmidi snd-seq-device sc97-codec snd-mixer]
ipv6 113296 -1 (autoclean)
3c59x 22192 1 (autoclean)
hisax 146608 5
isdn 98912 6 [hisax]
slhc 4592 2 [ppp_generic isdn]
AM53C974 12096 0 (unused)
ide-scsi 7840 0
usb-uhci 21424 0 (unused)
usbcore 49344 1 [usb-uhci]
-4.) 0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0213-0213 : isapnp read
0240-025f : avm PnP
02f8-02ff : serial(auto)
0320-0321 : VIA 82C686A - MPU401
0376-0376 : ide1
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0a79-0a79 : isapnp write
0cf8-0cff : PCI conf1
5000-500f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
6000-607f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
c000-cfff : PCI Bus #01
c000-c0ff : ATI Technologies Inc Rage 128 RF
d000-d00f : VIA Technologies, Inc. Bus Master IDE
d000-d007 : ide0
d008-d00f : ide1
d400-d41f : VIA Technologies, Inc. UHCI USB
d400-d41f : usb-uhci
dc00-dcff : VIA Technologies, Inc. AC97 Audio Controller
dc00-dcff : VIA 82C686A - AC'97
e000-e003 : VIA Technologies, Inc. AC97 Audio Controller
e400-e403 : VIA Technologies, Inc. AC97 Audio Controller
e400-e403 : VIA 82C686A - MPU401 config
e800-e87f : Advanced Micro Devices [AMD] 53c974 [PCscsi]
ec00-ec7f : 3Com Corporation 3c905B 100BaseTX [Cyclone]
ec00-ec7f : eth0
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000cc000-000ce1ff : Extension ROM
000f0000-000fffff : System ROM
00100000-07feffff : System RAM
00100000-00240747 : Kernel code
00240748-00259667 : Kernel data
07ff0000-07ff2fff : ACPI Non-volatile Storage
07ff3000-07ffffff : ACPI Tables
e0000000-e3ffffff : VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x]
e4000000-e7ffffff : PCI Bus #01
e4000000-e7ffffff : ATI Technologies Inc Rage 128 RF
e4000000-e7ffffff : aty128fb FB
e8000000-e9ffffff : PCI Bus #01
e9000000-e9003fff : ATI Technologies Inc Rage 128 RF
e9000000-e9003fff : aty128fb MMIO
ec000000-ec00007f : 3Com Corporation 3c905B 100BaseTX [Cyclone]
ec001000-ec001fff : Brooktree Corporation Bt848 TV with DMA push
ec001000-ec001fff : bttv
ffff0000-ffffffff : reserved
-5.) Look at the bottom please.
-6.) Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IOMEGA Model: ZIP 250 Rev: 51.G
Type: Direct-Access ANSI SCSI revision: ffffffff
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: ATAPI Model: CD-R/RW 4X4X32 Rev: 3.DS
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: PIONEER Model: CD-ROM DR-U24X Rev: 1.01
Type: CD-ROM
-7.) hdparm -i /dev/hda
Model=FUJITSU MPE3273AT, FwRev=ED-82-25, SerialNo=05006851
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=0(?), BuffSize=2048kB, MaxMultSect=16, MultSect=16
DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=0
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=53377152
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=yes, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: mode0 mode1 *mode2
Drive Supports : ATA-1 ATA-2 ATA-3 ATA-4
hdparm -I /dev/hda
Model=UFIJST UPM3E72A3 T , FwRev=DE8--252, SerialNo=50008615
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=0(?), BuffSize=2048kB, MaxMultSect=16, MultSect=16
DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=0
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=53377152
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=yes, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: mode0 mode1 *mode2
Drive Supports : ATA-1 ATA-2 ATA-3 ATA-4
I hope that is all you need on information. The problem does
not occur with Kernel 2.2.16 (SuSE-patch)
Please let me know, if that is/was a bug. If I did something
wrong with configuration, I was thankful for helping me
fixing the problem.
Sincercley
Christian Roessner
-----
Attachments:
00:00.0 Host bridge: VIA Technologies, Inc. VT82C691 [Apollo PRO] (rev 44)
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: 16
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 1.0
Status: RQ=7 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3 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: 0000c000-0000cfff
Memory behind bridge: e8000000-e9ffffff
Prefetchable memory behind bridge: e4000000-e7ffffff
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-
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super] (rev 1b)
Subsystem: VIA Technologies, Inc. VT82C686/A 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
00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 06) (prog-if
8a [Master SecP PriP])
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 4: I/O ports at d000 [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-
00:07.2 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 0e) (prog-if 00
[UHCI])
Subsystem: Unknown device 0925:1234
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 10
Region 4: I/O ports at d400 [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-
00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 20)
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-
00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 [Apollo Super
AC97/Audio] (rev 21)
Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super AC97/Audio]
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 C routed to IRQ 10
Region 0: I/O ports at dc00 [size=256]
Region 1: I/O ports at e000 [size=4]
Region 2: I/O ports at e400 [size=4]
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-
00:08.0 Multimedia video controller: Brooktree Corporation Bt848 TV with DMA push (rev
12)
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 (4000ns min, 10000ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at ec001000 (32-bit, prefetchable) [size=4K]
00:09.0 SCSI storage controller: Advanced Micro Devices [AMD] 53c974 [PCscsi] (rev 10)
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: 70 (1000ns min, 10000ns max)
Interrupt: pin A routed to IRQ 9
Region 0: I/O ports at e800 [size=128]
Expansion ROM at ea000000 [disabled] [size=64K]
00:0b.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30)
Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100
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 (2500ns min, 2500ns max), cache line size 08
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at ec00 [size=128]
Region 1: Memory at ec000000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at eb000000 [disabled] [size=128K]
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-
01:00.0 VGA compatible controller: ATI Technologies Inc Rage 128 RF (prog-if 00 [VGA])
Subsystem: ATI Technologies Inc: Unknown device 0448
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 (2000ns min), cache line size 08
Interrupt: pin A routed to IRQ 11
Region 0: Memory at e4000000 (32-bit, prefetchable) [size=64M]
Region 1: I/O ports at c000 [size=256]
Region 2: Memory at e9000000 (32-bit, non-prefetchable) [size=16K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [50] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=0 SBA+ AGP- 64bit- FW- Rate=<none>
Capabilities: [5c] 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-
First answer eMail:
> hda: dma_intr error=0x84 {DriveStatusError BadCRC}
CRC means that a transfer was corrupted. normally,
this is because you are using a bogus cable. all ide/ata
cables must be 18" or less, with both ends plugged in.
> hdparm -d 1 -c 0 -X66 /dev/hda (also without -X66)
udma2 (33 MB/s) doesn't require the 80-conductor cable,
but it never hurts. you could try X65.
is it safe to assume you have CONFIG_BLK_DEV_VIA82CXXX=y?
Second answer eMail:
We just had to replace a PCI video card with an AGP card as the old video
card couldn't handle the higher PCI bus rates.
We were getting disk corruption with Windows NT. The video card was an ATI
(don't think it was a Rage though).
If you have an AGP slot you might consider giving this a try.
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