Opened 15 years ago
Closed 15 years ago
#6716 closed defect (fixed)
3.2 Slow guests after update from 3.1.8 -> fixed in SVN (nested paging regression fixed in 3.2.2)
| Reported by: | PC Perfect | Owned by: | |
|---|---|---|---|
| Component: | VMM/HWACCM | Version: | VirtualBox 3.2.0 |
| Keywords: | nested paging | Cc: | |
| Guest type: | other | Host type: | other |
Description
After updating virtualbox 3.1.8 to 3.2 on an Ubuntu 10.04 64-bit host my XP/FLP guest runs very slow. I haven't tried any 3.2 beta.
Disabling "Enable Nested Paging" restored the speed.
Also reported on Mac hosts: http://forums.virtualbox.org/viewtopic.php?f=8&p=138101
Attachments (8)
Change History (29)
by , 15 years ago
| Attachment: | VBox.log.1 added |
|---|
comment:1 by , 15 years ago
comment:2 by , 15 years ago
Attach the log of a normal/fast session where you turned off nested paging too please.
comment:3 by , 15 years ago
I guess you are right that the CPU of this machine does not supporting nested paging. I had the option enabled since i made this VM though, which was in 3.0.2 if i recall correct.
Guess i never bothered to check if it was supported and just thought since i can select it and my VM works it was ok.
comment:4 by , 15 years ago
Right, but without support for this feature turning it on or off will not make any difference (it will not be used). So comparing log files of two different sessions (slow vs fast) might reveal more.
by , 15 years ago
| Attachment: | XP box-20100519-noNested.log added |
|---|
XP32 within Win764 nested paging OFF
comment:6 by , 15 years ago
Added my logs of Win7. In fact, the XP32 box refuses to run unless I give it cursor focus and hold down the "enter" button. Otherwise, it sits there frozen with one cpu-core pegged at 100%. Smells like an interrupt problem.
comment:7 by , 15 years ago
Attached my logs for a Mac host and Ubuntu 32bit guest. Having the same problem since 3.2.0. Nested paging was enabled in 3.1.8 with no problems. Now, with it enabled, the VM is unresponsive and one CPU (I only give the VM access to one) is pegged at all times.
Core i7 Mac OS X 10.6.3
comment:9 by , 15 years ago
| priority: | major → critical |
|---|
comment:10 by , 15 years ago
| Component: | other → VMM/HWACCM |
|---|---|
| Guest type: | Windows → other |
| Host type: | Linux → other |
| Keywords: | nested paging added |
comment:11 by , 15 years ago
| Summary: | 3.2 Slow guests after update from 3.1.8 → 3.2 Slow guests after update from 3.1.8 -> fixed in SVN |
|---|
Ok, found and fixed the problem. This only applies to those Intel CPUs that support both nested paging and unrestricted guest execution.
pcperfect: your case doesn't make any sense unfortunately and you're the only one who's cpu doesn't support nested paging.
comment:12 by , 15 years ago
Yeah strangly enough i enabled it again, and it's working fine now.
I had stopped/started the VM several times including a host reboot before i even started searching and found the forum thread. Then i disabled nested paging and it was fixed.
Also had installed the 3.2 client additions directly after upgrading, in save mode (don't know if that's still required for 3d).
Next to slowness i also had (pulse)audio stutter like i used to have with older versions. So i could hear directly from the startup sound.
Well anyway nice work on the quick support and fix.
comment:13 by , 15 years ago
Hi All,
I realize this may be after the fact, but I have the same problem. In case my data helps to verify the fix, here is my data:
I just upgraded from 3.1.6. Motherboard=Supermicro X8SAX; Memory 24GB; Processor=x5650, 6 cores; Host: CentOS 5.5; Guest 1: XP-Pro-SP3, 1 core; Guest 2: Windows Server 2003, 4 cores.
Both my guests are CPU max'ing. And, Nested Paging is enabled on both of them.
I have since downgraded to 2.1.8 and the system is working very, very well.
-T
by , 15 years ago
| Attachment: | VB-PPro2-2010-05-29-10-20-40.log added |
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windows server 2003 CPU max'ing
by , 15 years ago
| Attachment: | VirtualXP-2010-05-29-10-12-00.log added |
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windows XP Pro Sp3 CPU max'ing
comment:14 by , 15 years ago
Having the same problem. VMs start fine on 3.1.8 and 3.1.6 WinXP and Ubuntu guests will not start on 3.2.0
Host is 64 bit Ubuntu 10.04 kernel 2.6.32-22 on Core i5 M430
comment:15 by , 15 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Please verify that VBox 3.2.2 fixes this bug.
comment:17 by , 15 years ago
3.2.2 works for me too. But (don't you love that word), I only fired up two of my six processors. 3.1.8, under four processors runs slower, than two processors. That bug I have yet to test under 3.2.2 (Both server are production level and I have to be politic about taking them down. The only reason I got to test the first one was that under 3.1.8 and four cores, their terminal server froze up and I had a chance to go in an do some maintenance. It seems to be completely stable now under two processors and 3.2.2)
Thank you!
-T
comment:18 by , 15 years ago
| Resolution: | fixed |
|---|---|
| Status: | closed → reopened |
Problem's back. WinXP very slow. Funny thing is that it was working fine for awhile now it's incredibly slow with one processor at 100%
comment:19 by , 15 years ago
Happens with two different WinXP guests. Happens with both nested paging on and nested paging off.
Ubuntu recently pushed out a new kernel. 2.6.32-22-generic #36
Tried reinstalling VirtualBox in case kernel modules got screwed up. Doesn't fix problem.
comment:20 by , 15 years ago
Removed 3.2.2 Reinstalled 3.1.6 from standard Ubuntu repositories Back to normal speeds.
comment:21 by , 15 years ago
| Resolution: | → fixed |
|---|---|
| Status: | reopened → closed |
| Summary: | 3.2 Slow guests after update from 3.1.8 -> fixed in SVN → 3.2 Slow guests after update from 3.1.8 -> fixed in SVN (nested paging regression fixed in 3.2.2) |
tonydiep: then it's another problem. Please open a new ticket and attach your VBox.log.
Is this really the correct log file? Your CPU doesn't support nested paging.