Hello.
Andrew Morton wrote:
fyi.. (followup on-list if so inclined, please)
Begin forwarded message:
Date: Fri, 4 May 2007 18:44:18 +0200
From: Michal Kepien <[email protected]>
To: The Linux Kernel Mailing List <[email protected]>
Subject: HPT366: 2.6.21 breaks HPT366 detection on boot
Hi there all kernel hackers,
I own an Abit BE-6 v1 mainboard with an on-board HPT366 controller. Until kernel
version 2.6.20.7 it worked perfectly, however 2.6.21 broke it. My system is
Slackware 11.0 + current. Relevant log fragments:
2.6.20.7:
=========
-------------------------------------------------------------------------------
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 0000:00:07.1
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
Probing IDE interface ide0...
hda: SAMSUNG CD-R/RW SW-252B, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
HPT366: onboard version of chipset, pin1=1 pin2=2
HPT366: IDE controller at PCI slot 0000:00:13.0
PCI: setting IRQ 11 as level-triggered
PCI: Found IRQ 11 for device 0000:00:13.0
PCI: Sharing IRQ 11 with 0000:00:0b.0
PCI: Sharing IRQ 11 with 0000:00:13.1
HPT366: chipset revision 1
HPT366: 100% native mode on irq 11
ide2: BM-DMA at 0xd800-0xd807, BIOS settings: hde:DMA, hdf:pio
PCI: Found IRQ 11 for device 0000:00:13.1
PCI: Sharing IRQ 11 with 0000:00:0b.0
PCI: Sharing IRQ 11 with 0000:00:13.0
ide3: BM-DMA at 0xe400-0xe407, BIOS settings: hdg:pio, hdh:pio
Probing IDE interface ide2...
hde: IBM-DJNA-371350, ATA DISK drive
hde: hw_config=2000
hde: hw_config=2000
ide2 at 0xd000-0xd007,0xd402 on irq 11
Probing IDE interface ide3...
hde: max request size: 128KiB
hde: 26520480 sectors (13578 MB) w/1966KiB Cache, CHS=26310/16/63, UDMA(33)
hde: cache flushes not supported
hde: hde1 hde2 < hde5 >
hda: ATAPI 52X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
-------------------------------------------------------------------------------
2.6.21(.1):
===========
-------------------------------------------------------------------------------
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 0000:00:07.1
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
hda: SAMSUNG CD-R/RW SW-252B, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
HPT366: onboard version of chipset, pin1=1 pin2=2
HPT366: IDE controller at PCI slot 0000:00:13.0
PCI: setting IRQ 11 as level-triggered
PCI: Found IRQ 11 for device 0000:00:13.0
PCI: Sharing IRQ 11 with 0000:00:0b.0
PCI: Sharing IRQ 11 with 0000:00:13.1
HPT366: chipset revision 1
HPT366: using 33 MHz PCI clock
HPT366: 100% native mode on irq 11
HPT366: neither IDE port enabled (BIOS)
PCI: Found IRQ 11 for device 0000:00:13.1
PCI: Sharing IRQ 11 with 0000:00:0b.0
PCI: Sharing IRQ 11 with 0000:00:13.0
HPT366: using 33 MHz PCI clock
HPT366: neither IDE port enabled (BIOS)
Looks I was too bold with my 'enablebits' assumption and HPT366 didn't yet
have them. I'll send a patch to try soon.
hda: ATAPI 52X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
-------------------------------------------------------------------------------
Booting the system with 2.6.21 results in a kernel panic:
-------------------------------------------------------------------------------
VFS: Cannot open root device "2101" or unknown-block(31,1)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,1)
-------------------------------------------------------------------------------
I'd happily try out any patches and/or supply you with more details on demand.
MBR, Sergei
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