It does not boot neither with 2.4.21-pre7 nor with any other tested kernel
(RH-8.0 updated kernels) unless I boot with ide=nodma.
With RH kernels it stalls reading the partition table.
With 2.4.21-pre7 I get and error of the dma.
I've tried idebus=66, ide0=ata66 and some tweaks with hdparm to no
success; each time I enabled dma the system hung.
If someone can enlighten me on how to boot with DMA enabled maybe I'd
achieve a better performance than this (best result in several tries):
# hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.85 seconds =150.66 MB/sec
Timing buffered disk reads: 64 MB in 11.53 seconds = 5.55 MB/sec
These are the relevant parametres to me.
------------------------------------------------------------
# hdparm -I /dev/hda
/dev/hda:
ATA device, with non-removable media
Model Number: ST380011A
Serial Number: 3JV07K8W
Firmware Revision: 3.04
Standards:
Used: ATA/ATAPI-6 T13 1410D revision 2
Supported: 6 5 4 3
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 156301488
LBA48 user addressable sectors: 156301488
device size with M = 1024*1024: 76319 MBytes
device size with M = 1000*1000: 80026 MBytes (80 GB)
Capabilities:
LBA, IORDY(can be disabled)
bytes avail on r/w long: 4 Queue depth: 1
Standby timer values: spec'd by Standard
R/W multiple sector transfer: Max = 16 Current = 16
Recommended acoustic management value: 128, current value: 0
DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Look-ahead
* Write cache
* Power Management feature set
Security Mode feature set
* SMART feature set
* FLUSH CACHE EXT command
* Mandatory FLUSH CACHE command
* Device Configuration Overlay feature set
* 48-bit Address feature set
SET MAX security extension
* DOWNLOAD MICROCODE cmd
* SMART self-test
* SMART error logging
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
------------------------------------------------------------
# lspci
00:00.0 Host bridge: Intel Corp. 82820 820 (Camino) Chipset Host Bridge
(MCH) (rev 04)
00:01.0 PCI bridge: Intel Corp. 82820 820 (Camino) Chipset AGP Bridge (rev 04)
00:1e.0 PCI bridge: Intel Corp. 82801AA PCI Bridge (rev 02)
00:1f.0 ISA bridge: Intel Corp. 82801AA ISA Bridge (LPC) (rev 02)
00:1f.1 IDE interface: Intel Corp. 82801AA IDE (rev 02)
00:1f.2 USB Controller: Intel Corp. 82801AA USB (rev 02)
00:1f.3 SMBus: Intel Corp. 82801AA SMBus (rev 02)
00:1f.5 Multimedia audio controller: Intel Corp. 82801AA AC'97 Audio (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation RIVA TNT2 Model 64 (rev 15)
02:0c.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78)
------------------------------------------------------------
# lsmod
Module Size Used by Not tainted
nfsd 79920 8 (autoclean)
lockd 58064 1 (autoclean) [nfsd]
sunrpc 79324 1 (autoclean) [nfsd lockd]
autofs 13348 0 (autoclean) (unused)
3c59x 30672 1
iptable_filter 2412 0 (autoclean) (unused)
ip_tables 15224 1 [iptable_filter]
ext3 70336 1
jbd 52212 1 [ext3]
------------------------------------------------------------
# hdparm -i /dev/hda
/dev/hda:
Model=ST380011A, FwRev=3.04, SerialNo=3JV07K8W
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2: 1 2 3 4 5 6
------------------------------------------------------------
# cat /proc/ide/hda/settings
name value min max mode
---- ----- --- --- ----
acoustic 0 0 254 rw
address 1 0 2 rw
address 1 0 2 rw
bios_cyl 9729 0 65535 rw
bios_head 255 0 255 rw
bios_sect 63 0 63 rw
breada_readahead 8 0 255 rw
bswap 0 0 1 r
current_speed 0 0 69 rw
failures 0 0 65535 rw
file_readahead 508 0 16384 rw
ide_scsi 0 0 1 rw
init_speed 0 0 69 rw
io_32bit 3 0 3 rw
keepsettings 0 0 1 rw
lun 0 0 7 rw
max_failures 1 0 65535 rw
max_kb_per_request 128 1 255 rw
multcount 16 0 16 rw
nice1 1 0 1 rw
nowerr 0 0 1 rw
number 0 0 3 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
unmaskirq 1 0 1 rw
using_dma 0 0 1 rw
wcache 0 0 1 rw
------------------------------------------------------------
And part of the boot mmessages with latest RH-8.0 updated kernel:
# uname -a
Linux fileserver 2.4.18-27.8.0 #1 Fri Mar 14 06:45:49 EST 2003 i686 i686
i386 GNU/Linux
Booting parametres: ide=nodma idebus=66 ide0=ata66
ide: Assuming 66MHz system bus speed for PIO modes
PIIX4: IDE controller on PCI bus 00 dev f9
PIIX4: chipset revision 2
PIIX4: not 100% native mode: will probe irqs later
PIIX4: ATA-66/100 forced bit set (WARNING)!!
ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:pio
hda: ST380011A, ATA DISK drive
hdc: CRD-8482B, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
blk: queue c03b26c4, I/O limit 4095Mb (mask 0xffffffff)
blk: queue c03b26c4, I/O limit 4095Mb (mask 0xffffffff)
hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=9729/255/63
ide-floppy driver 0.99.newide
Partition check:
hda: hda1 hda2
Pau
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