SiI2112 + Seagate + nFroce2: no DMA!
From: manu (hislen_at_mindspring.com)
Date: Tue, 31 Dec 2002 21:55:59 -0800 To: firstname.lastname@example.org
Forgive me for intruding in this list as an outsider.
I'm about to give up on my SATA drive as I can't get it to work properly.
So I thought I may try asking the experts before falling back to PATA.
I have seen many mails reporting the same issue, some of them 6-month old:
- SATA drive comes up in pio mode, not in dma
- trying to turn on dma with hdparm is a nightmare: I/O errors, crash
with data corruption... I tried both:
hddarm -d1 /dev/hde
hdparm -u1 -c3 -d1 -X66 /dev/hde
crash in both cases :-((
Here's my equipment:
ABIT AN7 motherboard (nForce2 chipset, SiI3112 SATA controller)
AMD Athlon XP 2600+ (+ 512 DDR / 400 MHz)
SATA HD Seagate Barracuda 160 Gb
The SATA HD is my only drive. The only thing connected to my IDE
controllers is a DVD/CD combo.
Running Linux Redhat 9.0
Traces from dmesg:
Uniform Multi-Platform E-IDE driver Revision: 7.00beta3-.2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
NFORCE2: IDE controller at PCI slot 00:09.0
NFORCE2: chipset revision 162
NFORCE2: not 100% native mode: will probe irqs later
AMD_IDE: PCI device 10de:0065 (nVidia Corporation) (rev a2) UDMA100
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:DMA
SiI3112 Serial ATA: IDE controller at PCI slot 01:0b.0
SiI3112 Serial ATA: chipset revision 2
SiI3112 Serial ATA: not 100% native mode: will probe irqs later
, BIOS settings: hde:pio, hdf:pio
, BIOS settings: hdg:pio, hdh:pio
hda: PIONEER DVD-RW DVR-106D, ATAPI CD/DVD-ROM drive
hde: ST3160023AS, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide2 at 0xe080d080-0xe080d087,0xe080d08a on irq 11
hde: attached ide-disk driver.
hde: host protected area => 1
hde: 312581808 sectors (160042 MB) w/8192KiB Cache, CHS=19457/255/63
ide-floppy driver 0.99.newide
hde: hde1 hde2 hde3
ide-floppy driver 0.99.newide
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
I've been googling for days now and could not come accross a solution,
on the contrary I came under the impression that the combination of
SiI3112 +and Seagate was doomed.
I cannot use this brand new computer for anything else then mail and
web, performance is catastrophic:
[root]# hdparm -Tt /dev/hde
Timing buffer-cache reads: 128 MB in 0.33 seconds =387.88 MB/sec
Timing buffered disk reads: 64 MB in 48.49 seconds = 1.32 MB/sec
1.32 MB !!!!! I should be getting 50 MB at least.
Isn't there a solution??
I am willing to try patches of experimental code. At this point I am
looking at reinstalling everything on a PATA drive anyway, so I have
nothing to loose.
PS: please CC me in the reply as I am not subscribed to this list.
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