savle ragazzi,
ho un computer "nuovo" in casa, e ci ho installato sopra debian sarge. Ho ricompilato linux 2.6.8 e ho provato ad abilitare il dma ma quest'ultimo mi restituisce questo errore:
antonio:~# hdparm -d 1 /dev/hda
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)
antonio:~#
lspci mi restituisce questo:
antonio:~# lspci
0000:00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-751 [Irongate] System Controller (rev 25)
0000:00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-751 [Irongate] AGP Bridge (rev 01)
0000:00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-756 [Viper] ISA (rev 01)
0000:00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-756 [Viper] IDE (rev 03)
0000:00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-756 [Viper] ACPI (rev 03)
0000:00:07.4 USB Controller: Advanced Micro Devices [AMD] AMD-756 [Viper] USB (rev 06)
0000:00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
0000:00:0c.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 08)
0000:01:05.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15)
come faccio a permettere di abilitare il dma su questo computer?