UDMA/vfat problem?

Brian Gerst (bgerst@quark.vpplus.com)
Fri, 01 Jan 1999 19:49:02 -0500


I got the following messages from -pre3:

Jan 1 19:36:41 citadel kernel: VP_IDE: IDE controller on PCI bus 00 dev
39
Jan 1 19:36:41 citadel kernel: VP_IDE: not 100ative mode: will probe
irqs later
Jan 1 19:36:41 citadel kernel: ide0: BM-DMA at 0x6400-0x6407, BIOS
settings: hda:DMA, hdb:DMA
Jan 1 19:36:41 citadel kernel: ide0: VIA Bus-Master (U)DMA Timing
Config Success
Jan 1 19:36:41 citadel kernel: ide1: BM-DMA at 0x6408-0x640f, BIOS
settings: hdc:DMA, hdd:DMA
Jan 1 19:36:41 citadel kernel: ide1: VIA Bus-Master (U)DMA Timing
Config Success
Jan 1 19:36:41 citadel kernel: hda: WDC AC33100H, ATA DISK drive
Jan 1 19:36:41 citadel kernel: hdc: ST32122A, ATA DISK drive
Jan 1 19:36:41 citadel kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Jan 1 19:36:41 citadel kernel: ide1 at 0x170-0x177,0x376 on irq 15
Jan 1 19:36:41 citadel kernel: hda: (U)DMA capability is broken for WDC
AC33100H
Jan 1 19:36:41 citadel kernel: hda: DMA disabled
Jan 1 19:36:41 citadel kernel: hda: WDC AC33100H, 3020MB w/128kB Cache,
CHS=767/128/63
Jan 1 19:36:41 citadel kernel: hdc: ST32122A, 2014MB w/128kB Cache,
CHS=4092/16/63, UDMA
...
Jan 1 19:36:41 citadel kernel: fat_readsuper: Bad fsinfo_offset
Jan 1 19:36:41 citadel kernel: VFS: Can't find a valid MSDOS filesystem
on dev 03:01.
Jan 1 19:36:41 citadel kernel: fat_read_super: Bad fsinfo_offset
Jan 1 19:36:41 citadel kernel: VFS: Can't find a valid MSDOS filesystem
on dev 03:05.
Jan 1 19:36:41 citadel kernel: fat_read_super: Bad fsinfo_offset
Jan 1 19:36:41 citadel kernel: VFS: Can't find a valid MSDOS filesystem
on dev 03:06.

I could not mount any partitions from hda (WDC AC33100H). This drive
had been working flawlessly before (with DMA enabled). Why was it
blacklisted, and why did this cause vfat to not mount?

-- 

Brian Gerst

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