After upgrading from 2.3.99-pre7-8 to 2.3.99-pre9-5, one of our machines
didn't find it's partition tables any more. The only difference in the
bootup messages is that the old kernel reports UDMA(33), and the new
kernel reports UDMA(66) for some of the drives.
>From /proc/pci:
IDE interface: Acer Laboratories Inc. [ALi] M5229 IDE (rev 193).
with the old kernel:
33MHz system bus speed for PIO modes; override with idebus=xx
ALI15X3: IDE controller on PCI bus 00 dev 78
ALI15X3: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xd400-0xd407, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xd408-0xd40f, BIOS settings: hdc:pio, hdd:pio
hda: IBM-DJNA-352500, ATA DISK drive
hdb: Maxtor 54098U8, ATA DISK drive
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
hdc: IBM-DPTA-353750, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 49981680 sectors (25591 MB) w/1966KiB Cache, CHS=3111/255/63, UDMA(33)
hdb: 80041248 sectors (40981 MB) w/2048KiB Cache, CHS=79406/16/63, UDMA(33)
hdc: 73261440 sectors (37510 MB) w/1961KiB Cache, CHS=72680/16/63, UDMA(33)
Partition check:
hda: hda1 hda2 < hda5 >
hdb: hdb1 hdb2
hdc: [PTBL] [4560/255/63] hdc1 hdc2
The new kernel reports UDMA(66) for hdb and hdc, and doesn't find any
partitions (not even on hda!). Then, of course, root mount fails.
No other error messages.
Is there a kernel option to force UDMA(33) / disable UDMA(66) ?
Jan
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This archive was generated by hypermail 2b29 : Tue May 23 2000 - 21:00:25 EST