Messages in this thread Patch in this message |  | | Date | Fri, 5 Jan 2001 17:08:38 -0500 | From | Adrian Chung <> | Subject | Promise Ultra66 DMA problems. |
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I've been searching and watching lists for a while trying to figure out whether this problem had been solved or not, and haven't found anything suitable...
I'm experiencing two problems with a Promise UDMA66 controller (PDC20262) on hardware I'll list below. The first problem is that on bootup I get:
Uniform Multi-Platform E-IDE driver Revision: 6.30 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx PIIX4: IDE controller on PCI bus 00 dev 21 PIIX4: chipset revision 1 PIIX4: not 100%% native mode: will probe irqs later ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:DMA, hdd:pio PDC20262: IDE controller on PCI bus 00 dev 60 PDC20262: chipset revision 1 PDC20262: not 100%% native mode: will probe irqs later PDC20262: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode. ide2: BM-DMA at 0x9800-0x9807, BIOS settings: hde:pio, hdf:pio ide3: BM-DMA at 0x9808-0x980f, BIOS settings: hdg:pio, hdh:pio hdc: NEC CD-ROM DRIVE:282, ATAPI CDROM drive hde: Maxtor 91024U3, ATA DISK drive hdf: Maxtor 94098U8, ATA DISK drive hdg: QUANTUM FIREBALLP LM15, ATA DISK drive hdh: QUANTUM FIREBALLP LM30, ATA DISK drive ide1 at 0x170-0x177,0x376 on irq 15 ide2 at 0xb000-0xb007,0xa802 on irq 11 ide3 at 0xa400-0xa407,0xa002 on irq 11
Then a hang. Mentioned a while back, this patch fixes the problem, and allows the machine to boot properly.
--- /usr/src/linux-2.2.18-idepatch/drivers/block/ide-features.c Mon Jan 1 18:03:42 2001 +++ ide-features.c Mon Jan 1 18:30:37 2001 @@ -297,8 +297,10 @@ SELECT_DRIVE(HWIF(drive), drive); SELECT_MASK(HWIF(drive), drive, 0); udelay(1); + /* if (IDE_CONTROL_REG) OUT_BYTE(drive->ctl | 2, IDE_CONTROL_REG); + */ OUT_BYTE(speed, IDE_NSECTOR_REG); OUT_BYTE(SETFEATURES_XFER, IDE_FEATURE_REG); OUT_BYTE(WIN_SETFEATURES, IDE_COMMAND_REG); I then found that I randomly get "Timeout waiting for DMA" messages prior to a complete system hang.
I tried forcing all of the drives into UDMA mode 2 (hdparm -X66) and this seemed to make the problem a bit better, but I still experience system hangs. I can't seem to make the problem happen, it only happens randomly. The past two times, an rsync has made the system crash.
I'm using kernel 2.2.18 (tried 2.4 final briefly today to see if it would boot, it hung on bootup as well), with the latest ide.2.2.18.1221.patch from Andre's directory.
The system in question is:
Celeron 533 - 384 MB RAM - Asus P2B-F 4 IDE Drives listed above: hde: Maxtor 91024U3, ATA DISK drive hdf: Maxtor 94098U8, ATA DISK drive hdg: QUANTUM FIREBALLP LM15, ATA DISK drive hdh: QUANTUM FIREBALLP LM30, ATA DISK drive 1 IDE CDROM: hdc: NEC CD-ROM DRIVE:282, ATAPI CDROM drive Promise Ultra66 Controller, BIOS 2.0b18 2 D-Link DFE-538 (RTL8139) adapters
Any help, or any way I could help would be appreciated. Eager to try and get this resolved, as I've seen it crop up a number of times, and it's also a pain to have to physically hit the reset button as the machine is off-site.
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