hdparm -t /dev/hda isn't working

[Dragoran]

when i try hdparm -t /dev/hda (as root) the system hangs.
after a few minutes it says:

/dev/hda:
Timing buffered disk reads: read(2097152) returned 458752 bytes

lspci:

00:00.0 Host bridge: Silicon Integrated Systems [SiS] SiS645 Host & Memory & AGP Controller (rev 02)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge (AGP)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS85C503/5513 (LPC Bridge) (rev 04)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE]
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:07.0 Ethernet controller: 3Com Corporation 3c900B-TPO [Etherlink XL TPO] (rev 04)
00:0a.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 0a)
00:0a.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 0a)
01:00.0 VGA compatible controller: nVidia Corporation NV28 [GeForce4 Ti 4200 AGP 8x] (rev a1)

it only happens with udma3-5 (1 and 2 are working fine)

[wshawn]

As root run the following to see what your drive is capable of:


hdparm -I /dev/hda1