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Date: Tue, 29 Jul 2008 16:43:35 +0800
From: gshan <gshan@...atel-lucent.com>
To: linux-kernel@...r.kernel.org
CC: gshan <gshan@...atel-lucent.com>
Subject: PIIX4: DMA timeout issue
Hello, I sent mails on this issue before, but nobody made response.
There are 2 types of board for me. The hardware configuration for
those 2 boards are almost same except that one of them has 100GB
harddisk, and another type of board has 60GB harddisk. All harddisk
was access through PIIX4. I found this issue on board with 60GB
disk, but can't reproduce it on that with 100GB disk.
When I uncompressed a large file (600MB) to a logic partition with 8GB
size, following errors was report on middle way (5 minutes about from
start).
Anybody has ideas?
hdc: dma_timer_expiry: dma status == 0x21
hdc: DMA timeout error
hdc: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hdc: DMA disabled
ide1: reset: success
Output at booting as follows:
=====================
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIX4: IDE controller at PCI slot 0001:00:03.1
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x1000-0x1007, BIOS settings: hda:pio, hdb:pio
ide1: BM-DMA at 0x1008-0x100f, BIOS settings: hdc:pio, hdd:pio
hdc: HTS726060M9ATX0, ATA DISK drive
ide1 at 0x170-0x177,0x376 on irq 47
hdc: max request size: 512KiB
hdc: 117210240 sectors (60011 MB) w/7877KiB Cache, CHS=16383/255/63,
UDMA(33)
hdc: cache flushes supported
hdc: hdc1 hdc4 < hdc5 hdc6 hdc7 hdc8 >
More info from proc
==============
/proc/ide/ide1/hdc $ cat settings
name value min max mode
---- ----- --- --- ----
acoustic 0 0 254 rw
address 1 0 2 rw
bios_cyl 16383 0 65535 rw
bios_head 255 0 255 rw
bios_sect 63 0 63 rw
bswap 0 0 1 r
current_speed 66 0 70 rw
dma_timeout 20000 0 20000 rw
failures 0 0 65535 rw
init_speed 66 0 70 rw
io_32bit 0 0 3 rw
keepsettings 0 0 1 rw
lun 0 0 7 rw
max_failures 1 0 65535 rw
multcount 0 0 16 rw
nice1 1 0 1 rw
nowerr 0 0 1 rw
number 2 0 3 rw
pio_mode write-only 0 255 w
unmaskirq 0 0 1 rw
using_dma 1 0 1 rw
wcache 1 0 1 rw
Output from fdisk
=============
/proc/ide/ide1/hdc $ fdisk /dev/hdc
The number of cylinders for this disk is set to 7296.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p
Disk /dev/hdc: 60.0 GB, 60011642880 bytes
255 heads, 63 sectors/track, 7296 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x488ea1c3
Device Boot Start End Blocks Id System
/dev/hdc1 1 17 136521 83 Linux
/dev/hdc4 18 7296 58468567+ 5 Extended
/dev/hdc5 18 1014 8008371 83 Linux
/dev/hdc6 1015 2011 8008371 83 Linux
/dev/hdc7 2012 3008 8008371 83 Linux
/dev/hdc8 3009 4005 8008371 83 Linux
Regards,
Gavin
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