Messages in this thread | | | Date | Fri, 07 Dec 2001 17:30:14 -0600 | From | Ishan Oshadi Jayawardena <> | Subject | IDE-DMA woes |
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Greetings. I run Linux on an IBM PC300GL with Intel's 82371AB PIIX4 chipset. With DMA enabled (by doing a hdparm -d1 /dev/hda) on the hdd, I _sometimes_ get the following message from the kernel after resuming from APM standby mode:
ide_dmaproc: chipset supported ide_dma_timeout func only: 14 hda: status error: status=0x59 { DriveReady SeekComplete DataRequest Error } hda: status error: error=0x84 { DriveStatusError BadCRC } hda: drive not ready for command
then the drive stalls for a few seconds, and the driver disables DMA. This behaviour doesn't seem to depend on the kernel version (current: 2.4.14; error seen with 2.2 series also.) The weird thing is that this is not reliably reproducable; most of the time the system goes to apm standby (not suspend) and resumes fine.
Other (possibly relevent) boot-time messages (in order of appearance):
IBM machine detected. Enabling interrupts during APM calls. kernel: PIIX4: IDE controller on PCI bus 00 dev 11 PIIX4: chipset revision 1 PIIX4: not 100%% native mode: will probe irqs later ide0: BM-DMA at 0xfff0-0xfff7, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xfff8-0xffff, BIOS settings: hdc:DMA, hdd:pio hda: QUANTUM FIREBALL EX3.2A, ATA DISK drive hdc: SONY CD-ROM CDU5221, ATAPI CDROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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