Hi, I ran into an interesting DMA issue in 2.6.12 vs. 2.6.11:
First some info on the system I'm running the latest and greatest sid on: Asus A8V Deluxe AMD Athlon64 3000+ 1G dual channel DDR (2x512MB) /dev/sda = Maxtor 6B200M0 /dev/hda = Sony DVD-ROM DDU1622 /dev/hdb = WDC WD1200JB-75CRA0 /dev/hdc = Maxtor 6B200R0 /dev/hdd = WDC WD1200JB-00EVA0 /dev/sda has / and swap /dev/hdb and /dev/hdd are in /dev/md0 as raid-1 When using 2.6.11-9 everything is ok and as expected: The DMA flags are set when running `cat /proc/ide/hd[bcd]/settings`, running `hdparm -T` gives 1800+ MB/sec, and running `hdparm -t` gives 45MB/sec for /dev/md0 and 54MB/sec for /dev/hdc. So far so good. However, when running 2.6.12-1 things are not as expected: The DMA flags are not set, and running hdparm I get much lower numbers. And I get > hdparm -d 1 /dev/hdc /dev/hdc: setting using_dma to 1 (on) HDIO_SET_DMA failed: Operation not permitted using_dma = 0 (off) When booting nothing in the log files indicates something's wrong or whatever. Anybody any thoughts? Thanks, Ardo -- Ardo van Rangelrooij Debian XML/SGML Group <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> http://people.debian.org/~ardo/ http://debian-xml-sgml.alioth.debian.org/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]