2.4.20-pre5-ac1 and Intel ICH3M EIDE woes
I used to run 2.5.x as my laptop has the Intel ICH3M chips in it, and on the plain 2.4.x it would fail during boot claiming "resource collisions". In 2.4.19-ac4 or thereabouts it seemed to have been fixed the the ac-releases, and I ran happily with 2.4 again. After seeing a lot of IDE rearrangements lately I thought it was time for a YANK (Yet Another New Kernel), and the ICH3M seems unhappy again about resource collisions:
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH3M: IDE controller at PCI slot 00:1f.1
PCI: Device 00:1f.1 not available because of resource collisions
PCI: Assigned IRQ 11 for device 00:1f.1
ICH3M: Not fully BIOS configured!
ICH3M: chipset revision 2
ICH3M: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x4440-0x4447, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0x4448-0x444f, BIOS settings: hdc:DMA, hdd:piohda: TOSHIBA MK4019GAX, ATA DISK drive
hdc: SD-R2102, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: host protected area => 1
hda: 78140160 sectors (40008 MB), CHS=5168/240/63, UDMA(100)
hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, DMA Uniform CD-ROM driver Revision: 3.12
Partition check:
hda: hda1 hda2 hda3
However, unlike back in 2.4.18, this time I can run hdparm and get it to run in UDMA mode (instead of the default PIO mode) and get the performance back.
Relevant bits of the .config:
lapper:~/src/linux/linux-2.4-test$ grep IDE .config | grep -v ^# | sort CONFIG_BLK_DEV_IDECD_BAILOUT=y CONFIG_BLK_DEV_IDECD=y CONFIG_BLK_DEV_IDEDISK=y CONFIG_BLK_DEV_IDEDMA_PCI=y CONFIG_BLK_DEV_IDEDMA=y CONFIG_BLK_DEV_IDEFLOPPY=m CONFIG_BLK_DEV_IDE_MODES=y CONFIG_BLK_DEV_IDEPCI=y CONFIG_BLK_DEV_IDESCSI=y CONFIG_BLK_DEV_IDETAPE=m CONFIG_BLK_DEV_IDE=y CONFIG_IDEDISK_MULTI_MODE=y CONFIG_IDEDISK_STROKE=y CONFIG_IDEDMA_AUTO=y CONFIG_IDEDMA_PCI_AUTO=y CONFIG_IDEPCI_SHARE_IRQ=y CONFIG_IDE_TASKFILE_IO=y CONFIG_IDE_TASK_IOCTL=y CONFIG_IDE=y CONFIG_IEEE1394_VIDEO1394=m lapper:~/src/linux/linux-2.4-test$
mvh,
A
Signature · 3 lines
Alexander Hoogerhuis | [email protected] CCNP - CCDP - MCNE - CCSE | +47 908 21 485 "You have zero privacy anyway. Get over it." --Scott McNealy
Quoted 4 lines · Alexander Hoogerhuis
ICH3M: IDE controller at PCI slot 00:1f.1
PCI: Device 00:1f.1 not available because of resource collisions
PCI: Assigned IRQ 11 for device 00:1f.1
ICH3M: Not fully BIOS configured!
Looks fine to me. We reconfigured the relevant bits
Quoted 4 lines
ICH3M: chipset revision 2
ICH3M: not 100% native mode: will probe irqs lateride0: BM-DMA at 0x4440-0x4447, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0x4448-0x444f, BIOS settings: hdc:DMA, hdd:pio
And you got full DMA