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IDProjectCategoryView StatusDate SubmittedLast Update
0001056SpeedFanOtherpublic2008-01-12 10:002008-05-14 11:27
ReporterAndreas17 
Assigned Toalfredo 
PrioritynormalSeverityminorReproducibilityalways
StatusresolvedResolutionfixed 
PlatformASUS P5N-E SLIOSWindows XP Pro SP 2OS Versionno more detail
Product Version4.33 
Target VersionFixed in Version4.35 beta 
Summary0001056: Access violation at address 004CD8BA in module speedfan caused by VirtualBox
DescriptionThat's shown in SpeedFan 4.34 beta 37 after the error message

Win9x:NO 64Bit:NO GiveIO:YES SpeedFan:YES
I/O properly initialized
Linked ISA BUS at $0290
Steps To ReproduceAfter startup the PC SpeedFan 4.34 beta 37 works fine.
Start VirtualBos 1.5.4
Start a virtual PC containing Windows XP pro
As soon as the Windows startup screen appears in the virtual box SpeedFan cannot access the sensors anymore.
SpeedFan needs a reboot of the real PC to work fine again.
Additional InformationI've ticked the following boxes in the virtual box:
- ACPI activate
- IO-APC activate
- VT-x/AMD-V activate
TagsNo tags attached.
Motherboard Model
Video Card ModelASUS Nvidia GeForce EN7300GT Silent HTD
Attached Filestxt file icon Report.txt [^] (47,091 bytes) 2008-04-13 20:46 [Show Content]
txt file icon Info From Speedfan.txt [^] (540 bytes) 2008-04-13 21:05 [Show Content]

- Relationships
has duplicate 0001152closedalfredo Won't read any values when using VirtualBox with enabled VT-x 
has duplicate 0001331closedalfredo "Access violation at address 004D7FA4 in module 'speedfan.exe'. Read of address FFFFFFFF" 

-  Notes
(0003230)
Andreas17 (reporter)
2008-01-12 16:11

If I remove the tick for VT-x/AMD-V activate SpeedFan works fine again.
It seems there's a collision while using the virtualisation machine.
(0003232)
tomh (reporter)
2008-01-12 23:44

Are you running Speedfan on the host or the guest machine(s)?
I am using VMWare, running SF in the host OS only (of course) and never encountered any problem regarding virtualization.
(0003233)
Andreas17 (reporter)
2008-01-13 22:05

I'm running it on the HOST machine. Because I want to measure real temperatures.
Has VmWare a setting where you can choose using the VT mode of the CPU or not?

But it might be that this malfunction depends on my hardware type (e.g. chipset).
I've an ASUS P5N-E SLI with an Intel Core2Duo E6400 and 4 GB RAM.

Kind regards,
Andreas
(0003390)
stitch10925 (reporter)
2008-04-13 20:26

I have the same problem. Only occurs when the VT-x/AMD-V box is checked. Reported this to VirtualBox as well: http://www.virtualbox.org/ticket/988 [^]

But there no solution has been posted yet either...
Annoying little problem...
(0003391)
stitch10925 (reporter)
2008-04-13 20:27

Ah, maybe relevant information:

I have an Asus P5B Deluxe motherboard...maybe this is only an Asus problem?
(0003392)
alfredo (manager)
2008-04-13 20:34

I have the same motherboard. I will try to find some time to check it, but I would ask Virtual Box because it seems specific to that tool.
(0003393)
alfredo (manager)
2008-04-13 20:35

Please, use the UPLOAD FILE facility on this page to upload a .TXT with the output of the SEND REPORT (INFO tab) button.
(0003394)
stitch10925 (reporter)
2008-04-13 20:47
edited on: 2008-04-13 21:31

I uploaded the report

(0003395)
stitch10925 (reporter)
2008-04-13 20:54
edited on: 2008-04-13 20:54

Alfredo, here is the situation with VirtualBox (So you can replicate the problem):

Speedfan is running, when I then start VirtualBox everything is ok until I start a virtual computer, lets say Windows XP. The virtual windows computer starts up as normal, but as soon as the windows logo appears speedfan gives 00 as temperature. If you then stop speedfan, and start it again you get an error message. In my case: Access violation at address 00620EF2 in module 'speedfan.exe'. Read of address FFFFFFFF.

I don't think this is a speedfan, nor a virtualbox problem, I think this is more a memory collision, because both programs work fine when the other isn't running.

(0003396)
stitch10925 (reporter)
2008-04-13 21:06

Uploaded another file with the info that speedfan gives me after all the temperatures have gone to 00
(0003477)
The Darkmaster (reporter)
2008-05-06 05:02
edited on: 2008-05-06 05:04

I have the same problem: SpeedFan works fine until VirtualBox is turning on. After this, reads from SpeedFan stucks into "00" and if you try to restart then you get a "access violation" error from speedfan... Maybe the virtualbox gets exclusive access to CPU or to yours sensors?

(0003548)
alfredo (manager)
2008-05-14 11:26

Ok. I installed VirtualBox 1.6 on my Windows Vista Business. I have an Asus P5B Deluxe with an Intel E6420 and 2GB RAM. I installed Windows XP Pro in VirtualBox and enabled VT-x/AMD-V. I've seen the access violation. The solution is to stop GIVEIO.SYS service. SpeedFan 4.35 beta will include a new command line parameter (/NOGIVEIO) to start SpeedFan without any access to the GIVEIO service.

- Issue History
Date Modified Username Field Change
2008-01-12 10:00 Andreas17 New Issue
2008-01-12 10:00 Andreas17 Status new => assigned
2008-01-12 10:00 Andreas17 Assigned To => alfredo
2008-01-12 10:00 Andreas17 Video Card Model => ASUS Nvidia GeForce EN7300GT Silent HTD
2008-01-12 16:11 Andreas17 Note Added: 0003230
2008-01-12 23:44 tomh Note Added: 0003232
2008-01-13 22:05 Andreas17 Note Added: 0003233
2008-04-13 20:26 stitch10925 Note Added: 0003390
2008-04-13 20:27 stitch10925 Note Added: 0003391
2008-04-13 20:34 alfredo Note Added: 0003392
2008-04-13 20:34 alfredo Status assigned => acknowledged
2008-04-13 20:35 alfredo Note Added: 0003393
2008-04-13 20:46 stitch10925 File Added: Report.txt
2008-04-13 20:47 stitch10925 Note Added: 0003394
2008-04-13 20:54 stitch10925 Note Added: 0003395
2008-04-13 20:54 stitch10925 Note Edited: 0003395
2008-04-13 21:05 stitch10925 File Added: Info From Speedfan.txt
2008-04-13 21:06 stitch10925 Note Added: 0003396
2008-04-13 21:31 stitch10925 Note Edited: 0003394
2008-05-06 05:02 The Darkmaster Note Added: 0003477
2008-05-06 05:04 The Darkmaster Note Edited: 0003477
2008-05-14 11:26 alfredo Note Added: 0003548
2008-05-14 11:26 alfredo Category Logging and charting => Other
2008-05-14 11:27 alfredo Status acknowledged => resolved
2008-05-14 11:27 alfredo Resolution open => fixed
2008-05-14 11:27 alfredo Fixed in Version => 4.35 beta
2008-05-25 11:01 alfredo Relationship added has duplicate 0001152
2009-02-06 12:25 alfredo Relationship added has duplicate 0001331


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