I'm using kernel 2.4.18-pre9, which has a problem when I switch DMA on
the IDE hard drive. With DMA enabled, I cannot complete a kernel
compile without the machine locking up. The motherboard is an
ASUS board, with 512MB of DDR RAM and an Athlon 1800 XP. If I
turn the ide DMA off, then I can compile as many linux kernels
as I like with no lockup. This DMA lockup also occurs on other
2.4.x kernels. Is anyone interested in getting me to test a
fix for this problem?
Feb 10 10:44:35 solaris kernel: PCI: Using IRQ router ALI [10b9/1533] at 00:07.0
Feb 10 10:44:35 solaris kernel: ALI15X3: IDE controller on PCI bus 00 dev 20
Feb 10 10:44:35 solaris kernel: ALI15X3: chipset revision 196
Feb 10 10:44:35 solaris kernel: ALI15X3: not 100%% native mode: will probe irqs later
Feb 10 10:44:35 solaris kernel: ALI15X3: ATA-66/100 forced bit set (WARNING)!!
with dma off hdparm -Tt /dev/hda gives:
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.56 seconds =228.57 MB/sec
Timing buffered disk reads: 64 MB in 14.85 seconds = 4.31 MB/sec
with dma off hdparm -Tt /dev/hda gives:
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.49 seconds =261.22 MB/sec
Timing buffered disk reads: 64 MB in 1.70 seconds = 37.65 MB/sec
Cheers. Paul
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This archive was generated by hypermail 2b29 : Fri Feb 15 2002 - 21:00:30 EST