Messages in this thread | | | Date | Thu, 02 May 2002 13:41:13 -0700 | From | Samuel Flory <> | Subject | 2.4.19pres and IDE DMA |
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I'm having issues with a Tyan 2720 and post 2.4.18 boards with a Maxtor 4G120J6. Under 2.4.18 I can turn on dma via "hdparm -d 1". Under 2.4.19pre7 I get "HDIO_SET_DMA fail ed: Operation not permitted". On a side note the same thing occurs with the RH 2.4.18-0.13 kernel. It appears both kernels merged an ide update from the ac kernel line.
PS-There is also some issue with a resource conflict that occurs under every kernel I've tried.
2.4.18: bash-2.05# hdparm -d 1 /dev/hda
/dev/hda: setting using_dma to 1 (on) using_dma = 1 (on) bash-2.05# hdparm -d /dev/hda
/dev/hda: using_dma = 1 (on) bash-2.05#
2.4.19pre7
root@dev30> /sbin/hdparm /dev/hda
/dev/hda: multcount = 16 (on) I/O support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 0 (off) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 238216/255/63, sectors = 240121728, start = 0 busstate = 1 (on)
root@dev30> /sbin/hdparm -d1 /dev/hda /dev/hda: setting using_dma to 1 (on) HDIO_SET_DMA fail ed: Operation not permitted using_dma = 0 (off)
lspci strangeness: (both 2.4.19pre7, and 2.4.18)
00:1f.1 IDE interface: Intel Corporation: Unknown device 248b (rev 02) (prog-if 8a [Master SecP PriP]) Flags: bus master, medium devsel, latency 0, IRQ 18 I/O ports at <unassigned> [size=8] I/O ports at <unassigned> [size=4] I/O ports at <unassigned> [size=8] I/O ports at <unassigned> [size=4] I/O ports at ffa0 [size=16] Memory at 40000000 (32-bit, non-prefetchable) [disabled] [size=1K]
IDE intialization error: (both 2.4.19pre7, and 2.4.18)
PCI_IDE: unknown IDE controller on PCI bus 00 device f9,VID=8086,DID=248b PCI: Device 00:1f.1 not available because of resource collision PCI_IDE: (ide_setup_pci_device:) Could not enable device.
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