Comment 23 for bug 352197

Revision history for this message
Ivan Dorna (ivan-dorna) wrote :

Mainboard (and controllers):
http://en.gentoo-wiki.com/wiki/Asus_M3A32-MVP_Deluxe/WiFi-AP#ATI_Technologies_Inc_SB600_IDE

system:
Linux bvs003 2.6.28-16-server #55-Ubuntu SMP Tue Oct 20 20:37:10 UTC 2009 x86_64 GNU/Linux

problem still present.

solved some acpi problems (hw related) at boot with: irqfixup pci=routeirq acpi_irq_balance noapic iommu=force

continous freezing of md device under operations and really poor performances.
making some tests, with dd and iostat, dd work and say 103-124mb/s (read) and iostat at same time show a change from 0 mb/s (read) to 0.06-0.09 mb/s (!!!)

something wrong in messaging?

ahci mod from bios (on 4 disks of 6 enabled #2 controller, recognized first controller from os) -> same problem

system on 2 hd with ahci disable (the #1 controller, recognised second form os, have only raid and ide setting) -> same problem

on heavy copy of data (virtual machines) the system progressively freeze and system md device and data destination md device , corrupt the raid. system crash.

no ahci modules loaded, fresh ubuntu server 9.04 (jaunty) installed and upgraded to last packages, on 02/11/2009.

ANY SUGGESTIONS?