Linux Clock

[Hortnon]

So with the recent releases of VirtualBox, the clock issues have mostly been resolved. My Ubuntu systems now don't race at about 3x speed. But fresh installs of CentOS and RedHat with Guest Additions installed still do. I think this is probably what causes a problem I'm having where a single key press puts like 15 of the letter down.

Anyway, this makes it very difficult to use, and could cause problems with clustering or database software. Any ideas what could be done to fix this?

[Perryg]

Are you sure that the guest additions were successfully installed. I do not have this problem with any guest OS after the GAs are installed.

[Hortnon]

Well, I get mouse integration and the desktop is able to resize correctly if I resize the VM window

[Perryg]

I see where you and Frank (Sun) have been working on this issue since ver 3.0.4. I have no idea why I do not have this issue but you should probably issue a ticket in bugtracker about this. (or reopen an existing one) From what I read they think the issue is fixed.

[Hortnon]

I'm also confused because the other VM's that I was having the issue with I no longer am. But now 3 freshly installed OS's with nothing but the guest additions have the issue.

Here's the ticket for anyone else's reference:

http://www.virtualbox.org/ticket/5925

[EmmEff]

I'm experiencing the same problem with a Ubuntu 9.04 (x86_64) host and an Oracle Enterprise Linux 5.3 x86_64 guest. I have the Guest Additions installed as well and the clock still lags.

[MarkCranness]

Perhaps check the TM: cTSCTicksPerSecond= value (look in VBox.log) agrees with the CPU clock rate.
Force set it with:

Code: Select all

VBoxManage setextradata "<VMName>" "VBoxInternal/TM/TSCTicksPerSecond" <rate>

For Linux-ey guests people have reported (IIRC) that setting some combination (one or more) of the nolapic_timer, noapic, nolapic, notsc kernel parameters helps.

If you can stand it, try disabling all CPU power save features (EIST in the BIOS and/or try an 'Always on' power schemes).

[Hortnon]

STILL having this issue, with 5.4 and 3.2.4 installed with a fresh guest....now keyboard freaks out and types 20-50 characters when it was only pressed for a second. VM has been up 10 min and is 5 min ahead so far.