Перестает работать dma для hda, если загрузиться и работать с флешки в Etch:
# hdparm -d 1 /dev/hda (от рута)
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)
Вопрос: как побороть "HDIO_SET_DMA failed" ?
Конфигурация:
1. Etch + backports
2 Дистрибьютивное ядро.
cat /boot/grub/menu.lst
title Debian GNU/Linux, kernel 2.6.26-1-686
root (hd0,0)
kernel /vmlinuz-2.6.26-1-686 root=/dev/mapper/rootfs ro
initrd /initrd.img-2.6.26-1-686
savedefault
3. cat /etc/crypttab
# <target name> <source device> <key file> <options>
rootfs /dev/disk/by-uuid/... none luks
hda5_crypt /dev/hda5 none luks
4. cat /etc/fstab
/dev/mapper/rootfs / ext2
defaults,errors=remount-ro,noatime 0 1
UUID=... /boot ext2 defaults 0 2
none /proc proc defaults
0 0
tmpfs /tmp tmpfs
defaults,noatime,mode=1777 0 0
tmpfs /var/tmp tmpfs
defaults,noatime,mode=1777 0 0
tmpfs /var/log tmpfs
defaults,noatime,mode=0755 0 0
tmpfs /var/log/apt tmpfs defaults,noatime
0 0
tmpfs /var/lock tmpfs defaults,noatime
0 0
tmpfs /var/run tmpfs defaults
0 0
/dev/mapper/hda5_crypt /mnt/hda5 ext3
defaults,errors=remount-ro 0 1
/dev/hda2 /mnt/hda2 vfat
user,defaults,umask=1111,dmask=000 0 0
--
Sincerely,
Nicholas
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