Tremulous Forum

General => Troubleshooting => Topic started by: smrtak on February 07, 2009, 11:49:34 pm

Title: [SOLVED] vista & truecrypt
Post by: smrtak on February 07, 2009, 11:49:34 pm: Hi,
i play long time tremulous on Vista 32bit with 'no problem', but now i transfer whole disc to true crypt encryption. All work fine but tremulous not start (application error), console output is normal.

i try new GF driver, but no effect, any ideas?

thx
Title: Re: vista & truecrypt
Post by: smrtak on February 08, 2009, 01:41:25 am: i try build debug version in VS and i found problem in
file: vm_x86.c
function: int VM_CallCompiled( vm_t *vm, int *args )
line 1178: mov programStack, esi

maybe call problem with encrypted files?
Title: Re: vista & truecrypt
Post by: gimhael on February 08, 2009, 10:27:54 am: Is there a compiler error or a runtime error ?

The VM_CallCompiled function is called when the client wants to run a piece of code in one of the JIT-ed QVM files, so it might trigger some Antivirus stuff, but it's not using any files at all.
Title: Re: vista & truecrypt
Post by: smrtak on February 08, 2009, 10:32:45 am: Quote from: gimhael on February 08, 2009, 10:27:54 am
Is there a compiler error or a runtime error ?

The VM_CallCompiled function is called when the client wants to run a piece of code in one of the JIT-ed QVM files, so it might trigger some Antivirus stuff, but it's not using any files at all.

runtime error,
i find now this compiled version work fine:
http://releases.mercenariesguild.net/client/.
Title: Re: vista & truecrypt
Post by: kevlarman on February 08, 2009, 05:46:29 pm: Quote from: smrtak on February 08, 2009, 10:32:45 am
Quote from: gimhael on February 08, 2009, 10:27:54 am
Is there a compiler error or a runtime error ?

The VM_CallCompiled function is called when the client wants to run a piece of code in one of the JIT-ed QVM files, so it might trigger some Antivirus stuff, but it's not using any files at all.

runtime error,
i find now this compiled version work fine:
http://releases.mercenariesguild.net/client/.

tremulous 1.1 will set off DEP, need to either disable it for tremulous or (as you did) get a new client that properly marks the memory with the compiled qvm executable after it compiles it.
Title: Re: vista & truecrypt
Post by: smrtak on February 09, 2009, 02:24:58 pm: Quote from: kevlarman on February 08, 2009, 05:46:29 pm
tremulous 1.1 will set off DEP, need to either disable it for tremulous or (as you did) get a new client that properly marks the memory with the compiled qvm executable after it compiles it.

ah thx for info, i dont know what is DEP, i recovery MBR (removing GRUB) then DEP turn always on. Now is all ok.
Title: Re: [SOLVED] vista & truecrypt
Post by: gimhael on February 09, 2009, 03:31:57 pm: Its the Data Execution Prevention (http://en.wikipedia.org/wiki/Data_Execution_Prevention), this is an Antivirus/trojan feature of Windows. I have no idea how your MBR or your encrypted parition can influence this except if you boot into a different Windows installation.