On Mon, 11 Aug 2003 13:18:06 -0400 (EDT) [EMAIL PROTECTED] wrote: > hdparm -d 1 -k 1 /dev/hda > HDIO_SET_DMA failed: operation not permitted > > I went to Google and did some searching, finding what looks like a > fair amount of false information, like the person who said that you > just can't do it with a 2.4.21 kernel. Several people suggested a > command that I forget, but apparently the same info is in /proc/pci. > -- I should note: 2.4.21 kernel, AMD Athlon K7 processor, Iwill XP333 > motherboard, new Maxtor DiamondMax Plus 9 200 GB IDE (6Y200P0). > > 00:04.0 IDE interface: ALi Corporation M5229 IDE (rev (4) > (prog-if & [Master SecP PriP]) > ISA bridge: ALi Corporation [ALi] M1533 PCI to ISA bridge > [Alladin IV] (rev 0) > > if my scrawled notes are to be trusted. One person had recommended > that the second line indicated that the alim15x3 module needed to be > loaded. I did, and bandwidth dropped from 4 MB/s to 1 MB/s!
Are you compiling from source, or using kernel-images? I use VIA board, and build in VIA82CXXX chipset support (CONFIG_BLK_DEV_VIA82CXXX=y) as well as Use PCI DMA by default (CONFIG_IDEDMA_PCI_AUTO=y) > The further frustrating thing is that Knoppix can handle it fine. > "hdparm -d 1" works fine, and bandwidth goes to the 45-55 MB/s range. > (I'd prefer higher, given than I'm doing a "badblocks -w" on a new 200 > GB drive and will I hope be doing another, but this means it'll run > overnight and while I'm at work instead of weeks.) > (Other parameters (-c, -u, -A, -a, -m) have no noticable effect on the > speed reported by "hdparm -t", whether under my normal kernel or > under Knoppix.) > (This is the latest Knoppix, and uname -a returns 2.4.21, I think > -xfs.) Look in /boot/config-<kernel-vesion> on Knoppix to see what modules are built in. Hint: grep is your friend. [EMAIL PROTECTED]:/boot$ grep -i ali config-2.4.21 # CONFIG_BLK_DEV_ALI15X3 is not set ^Thats probably the one you want # CONFIG_WDC_ALI15X3 is not set ^Maybe that one too # CONFIG_EQUALIZER is not set # CONFIG_AGP_ALI is not set # CONFIG_SOUND_ALI5455 is not set [EMAIL PROTECTED]:/boot$ > I did "lsmod" to see what modules were loaded in Knoppix that weren't > in my system, and they're these: > > af_packet agpgart apm autofs4 cloop cmpci > efs hfs minix ntfs reiserfs serial > usb-ohci usbcore xfs > > But Knoppix might perhaps have a proper driver built-in, and lsmod > would not then report it, right? Built in modules are not reported by lsmod. > Any clues about what module I might need? Also, where do I put the > insmod line? (I'm afraid I haven't Googled for that info -- sorry for > not doig my research.) modconf puts it in /etc/modules for you Do not edit your .config file (in /usr/src/[linux<version>, kernel-source-<version>) by hand. I like menuconfig. xconfig is not bad. I do not like the new gconfig in 2.6 -- -johann koenig Now Playing: Red Hot Chili Peppers - Johnny, Kick A Hole In The Sky : Mother's Milk Today is Pungenday, the 4th day of Bureaucracy in the YOLD 3169 My public pgp key: http://mental-graffiti.com/pgp/johannkoenig.pgp
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