On 01/25/2011 12:11 PM, Klaus Knopper wrote:
This is exactly my suspicion Re: running in VirtualBoxHello again, On Tue, Jan 25, 2011 at 09:37:58AM -0800, JD wrote:OK - I rebooted on the real hardware. All is well - so something is wrong wth how Virtualbox handles memory management for this guest.I'm not sure yet if it is really bad "virtual" memory. Could as well be interrupts or virtual disk controllers, since data seems to change while being read from disk. You could run a quick test by copying a file from ramdisk to ramdisk, and see if md5sum changes. VirtualBox-3.2-3.2.12_68302_fedora13-1.i686 $ strings VBoxGuestAdditions.iso | grep -i VBOXADDITIONS VBOXADDITIONS_3.2.12_68302 You may indeed be onto something. I am currentlyI have neve seen a guest behave this way, even though I configured the guest to have 768MB of ram.I have seen similar problems in virtualbox with Linux guests using recent-but-stable kernels quite often, ranging from freeze during boot to random errors concerning all simulated hardware. I now use kvm for my own tests, can't spend time much on debugging virtualbox. :-( running mainline kernel 2.6.37. This kernel supports my rt2860 mini-pci wifi via these drivers: $ lsmod | grep rt2 rt2800pci 6723 0 rt2800lib 28134 1 rt2800pci rt2x00pci 4001 1 rt2800pci rt2x00lib 25300 3 rt2800pci,rt2800lib,rt2x00pci Notice, the rt2xxxUSB drivers are not loaded, because I have a mini-pci card, and not a USB card. I had tried that driver, even the latest version from ralinktech.comOne problem I encountered was inability o bring up my mini-pci wifi card (rt2860/rt2850) dual mode. I have no idea how to configure t and make it work under Knoppix.There seems to be a driver in the "staging" kernel section, which means that the driver is quite new and not well tested yet, it may or may not work with your card. and it will not compile with this kernel, nor with the Fedora vanilla released kernel: kernel-2.6.34.7-66.fc13.i686 Actually, NetworkManager is not invoking wpa_supplicant with the correct arguments. To wit, it (wpa_supplicant) needs to be invoked by NetworkManager in this way: $ ps -wwef | grep wpa root 862 1 0 Jan24 ? 00:00:00 wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -iwlan0 -Dwext -B -dd -f /var/log/wpa_supplicant.log -P /var/run/wpa_supplicant.pid The -dd is optional. I added it in /etc/sysconfig/wpa_supplicant because I wanted to look at the activity and progress of wpa_supplicant. Also notice, I did not use the -u option (for the dbus daemon), because it will not work on F13 (i.e. I simply cannot make it work for me). Actually Klaus I need someone to point out to me the sequence,If someone would please tell me how to bring up my wifi card under Knoppix, I would really appreciate it.I just checked, there are a few modules which may work with the wifi card: sudo modprobe rt2860sta or sudo modprobe rt2800usb Now it COULD be that you need additional firmware. Please check "dmesg" for any hint. Regards -Klaus the mechanism of what NetworkManager does to bring up the wpa_supplicant, with what arguments passed to wpa_supplicant, and how the wlan0 interface is configured and brought up by NM. Perhaps an online writeup that explains it all would be a great help. |