BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Debugging under VMWare          BorlandTalk.com Forum Index -> Delphi Non-Technical View previous topic :: View next topic   Author Message Dan Downs Guest Posted: Mon Jun 27, 2005 9:43 pm    Post subject: Debugging under VMWare I'm looking for people that develop under VMWare, preferably version 5. I'm running into a wierd debugging issue and I'm curious if anyone else has had any issues. My system: 2.0ghz P4m 1gb ram Win XP Pro SP1 VMWare 5.0.0 VW: Setup Ram 384mb OS: Win2003 Server SP1 Delphi 7 Ent Connecting to SQL Server 2000 SP3a through ADO Apache 1.3.29 The app is a apache 1 dso module, it works fine when debugging on the host os, but when debugging in the vm I can browse to several pages then for one page boom "Project UNKNOWN faulted with message: 'access violation at 0x75bb2443: read of address 0x75bb2443'. Process Stopped. Use Step or Run to continue." Hitting ok shows the current thread in the CPU window and it just loops the same exception and I have to end the process. First up, has anyone had issues debugging threaded apps under a virtual machine?? Second, I can step through the code and get no exceptions, its like something else internal to the webbroker framework gets fires and throws the exception. The browser shows whats its suppose to be showing, and doesn't report any errors. Any ideas? DD Back to top Kevin Guest Posted: Tue Jun 28, 2005 2:12 am    Post subject: Re: Debugging under VMWare Dan Downs wrote: Quote: The app is a apache 1 dso module, it works fine when debugging on the host os, but when debugging in the vm I can browse to several pages then for one page boom "Project UNKNOWN faulted with message: 'access violation at 0x75bb2443: read of address 0x75bb2443'. Process Stopped. Use Step or Run to continue." Hitting ok shows the current thread in the CPU window and it just loops the same exception and I have to end the process. First up, has anyone had issues debugging threaded apps under a virtual machine?? Second, I can step through the code and get no exceptions, its like something else internal to the webbroker framework gets fires and throws the exception. The browser shows whats its suppose to be showing, and doesn't report any errors. Any ideas? I've encountered problems with DEP and Delphi SOAP apps (Access Violations). I wonder if this is related to your problem? I had problems running under the host OS though, not inside a VM. To fix the problem I patched RIO.pas (suggested by another poster). Does your machine support DES perhaps? (Athlon 64?) To see if this is related to the problem, try turning on DES for the host OS and see if you run into the problem. One other thing... is your VM set up exactly the same as the host? If not, try to isolate the differences. I've never seen anything happen in a VM that didn't happen outside the VM as well (with the matching environment). Cheers, Kevin. Back to top Dan Downs Guest Posted: Tue Jun 28, 2005 2:16 pm    Post subject: Re: Debugging under VMWare Quote: I've encountered problems with DEP and Delphi SOAP apps (Access Violations). I wonder if this is related to your problem? I had problems running under the host OS though, not inside a VM. To fix the problem I patched RIO.pas (suggested by another poster). Does your machine support DES perhaps? (Athlon 64?) To see if this is related to the problem, try turning on DES for the host OS and see if you run into the problem. Its a 2 year old P4m dell notebook, so no it doesn't support DEP. Quote: One other thing... is your VM set up exactly the same as the host? If not, try to isolate the differences. I've never seen anything happen in a VM that didn't happen outside the VM as well (with the matching environment). My host is WinXP Pro SP1, but the VM is Win2003 Server SP1. I purposly put win2003 on the vm since I'll be switching to IIS6 and isapi dlls in the future over apache, or possibly asp.net. I ran into something simular when I was debugging my app on the host but connecting to the db server in the vm, once I switched to connecting to the db server on the host the problem went away. I never had any issues before when everything was on the vm, so maybe its a sql server 2000 issue I'm hitting. DD Back to top Dan Downs Guest Posted: Tue Jun 28, 2005 5:18 pm    Post subject: Re: Debugging under VMWare Now I'm getting some really weird things happening. I set a breakpoint on the first line of my OnAction event, a "if Assigned() then" line, it stops there like its suppose to then when I hit F8 it jumps to a whole different unit (the one I'm currently working on) to execute a commented line, hit F8 again and it jumps to an end; line in FastMM4 which isn't even included anymore (tried it for memory leak testing). I've rebuilt the project and compiled but it hasn't made any difference, I'm installing some windows updates now and I'll reboot the vm, but this has just gotten really weird. Side note, I ran memtest86+ last night and not a single memory error in 21 passes, so I think that rules bad memory out. DD Back to top Dan Downs Guest Posted: Wed Jun 29, 2005 7:10 pm    Post subject: Re: Debugging under VMWare Well I've found half my problem, still searching for the rest. My default webbroker action was firing after a failed image lookup, oops. DD Back to top Dan Downs Guest Posted: Wed Jun 29, 2005 11:18 pm    Post subject: Re: Debugging under VMWare I've run across several posts about windows 2003 and errors in the ntdll.dll, and I seem to be running into that. sucks. DD Back to top Kevin Berry Guest Posted: Thu Jun 30, 2005 5:59 pm    Post subject: Re: Debugging under VMWare Dan Downs wrote: Quote: I've rebuilt the project and compiled but it hasn't made any difference, I'm installing some windows updates now and I'll reboot the vm, but this has just gotten really weird. Find every single DCU on your library paths and nuke them. Then rebuild the lot. I once ran into this type of problem because Delphi was using old DCUs and not using the newer ones. Can't remember exactly what the problem was, but deleting DCUs fixed it. Cheers, Kevin. 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