Messages in this thread |  | | Date | Sun, 8 Sep 1996 11:30:46 +0000 (GMT) | From | "" <> | Subject | problems with ide dma |
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Hi !
I tried many kernels of the 2.0.xx series, and ide dma does not work. I tried 2.0, 2.0.7, 2.0.9, 2.0.14, 2.0.17 The only eception is 2.0.9, where dma seems to work fine, but tests with this kernel show strange interesting results.
With some kernels I cannot get to the login promt at all, some seems to work for a while, but heawy compile always stops with signal 11, internal error or something like that. If I turn dma off (or boot them with ide0=noautotune) they work well.
I have an ASUS P/I P55T2P4 P100 (Triton II chipset) motherboard with 16 Meg EDO RAM and Quantum fireball 1280A ide hard disk. I tried to slow down the machine in setup, but it didnot help.
I compile everythin possible in modules (even the floppy, slip and serial drivers) only elf, aout, ext2fs, ipc, tcpip, ide and triton is compiled in.
***************** test with Kernel 2.0.9: dma works fine with this one. According to hdparm3.1 disk transfer is much faster when dma on, but kernel copiles faster if dma is off.
$make clean $hdparm -d0 $hdparm -t /dev/hda: Timing buffered disk reads: 16 MB in 3.22 seconds = 4.97 MB/sec
$time make zImage 400.85user 27.51system 7:20.76elapsed 97%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+0minor)pagefaults 0swaps
$make clean $hdparm -d1 $hdparm -t /dev/hda: Timing buffered disk reads: 16 MB in 2.65 seconds = 6.04 MB/sec
$make zImage 399.65user 27.69system 7:24.45elapsed 96%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+0minor)pagefaults 0swaps
$cat /proc/pci PCI devices found: Bus 0, device 12, function 0: VGA compatible controller: S3 Inc. Trio32/Trio64 (rev 64). Medium devsel. IRQ 11. Non-prefetchable 32 bit memory at 0xf4000000. Bus 0, device 7, function 1: IDE interface: Intel 82371SB Natoma/Triton II PIIX (rev 0). Medium devsel. Fast back-to-back capable. Master Capable. Latency=32 I/O at 0xe800. Bus 0, device 7, function 0: ISA bridge: Intel 82371SB Natoma/Triton II PIIX (rev 1). Medium devsel. Fast back-to-back capable. Master Capable. No bursts. Bus 0, device 0, function 0: Host bridge: Intel 82439HX Triton II (rev 1). Medium devsel. Master Capable. Latency=32.
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If enyone have some idea please mail me. I am not on this list.
Holluby Istvan Budapest (holluby@mail.matav.hu)
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