Wow a pathname longer than 1024 ! Anyway, fix is now in CVS.
Cheers, Fons.
Pere Mato wrote:
> Valeri, Fons,
>
> I did check ROOTSYS and PATH environment variables and everything is
> according to your indications. I even download Valeri's installation just to
> see if there was a problem with mine. Also the changed Root.ShowPath to true
> but it didn't help because the crash happens before anything is printed.
>
> Debugging at assembler level I noticed that the access violation occurs in
> the method TWinNTSystem::Which() that is called by TSystem::Load() when not
> full path given. This method expects a maximum PATH length of 1024 (the
> value of kMAXPATHLEN) and unfortunately by PATH was longer than that!!!
> Reducing the PATH to less than 1024 it works.
>
> Taking into account the PATH on Windows can be longer than 1024 (DOS limit
> is at 2048 I think) I would suggest to change the limit or put better
> protection.
>
> Thanks for your hints,
>
> Pere
>
>
>>-----Original Message-----
>>From: owner-roottalk@pcroot.cern.ch
>>[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Valeri Fine
>>Sent: 16 January 2002 18:13
>>To: Pere Mato; Roottalk
>>Subject: Re: [ROOT] Loading ROOT libraries on Windows
>>
>>
>>
>>----- Original Message -----
>>From: "Pere Mato" <Pere.Mato@cern.ch>
>>To: "Roottalk" <roottalk@pcroot.cern.ch>
>>Sent: Wednesday, January 16, 2002 7:43 AM
>>Subject: [ROOT] Loading ROOT libraries on Windows
>>
>>
>>
>>>Hello,
>>>
>>> I am trying to load standard ROOT libraries within a C++
>>>
>>module using the
>>
>>>method TSystem::Load(). I seems that it works only if I put the
>>>
>>full path
>>
>>>where the library is. If I use only the library name it
>>>
>>generates an "access
>>
>>>violation" even if I have in the PATH the location where the
>>>
>>libraries are.
>>
>>> gSystem->Load("libHist") // Access violation!
>>> gSystem->Load("S:/sw/ROOT/v3.01/nt4/root/bin/libHist.dll") // Works!!
>>>
>>>
>> What is your environment ? Before asking Windows to load DLL
>>ROOT checks the access
>> to that library on its own
>>
>> In this case the path to look up is picked from the
>>system.rotor file. The later itself is found under
>> %ROOTSYS%/etc. To get the "Windows" behavior the %ROOTSYS%\bin
>>should be in your PATH
>> and ROOT search path (within ".rootrc" file) should include $PATH.
>>
>>Anyway first make sure your env variables do match that ?
>>
>>
>>You may want to find system.rootrc and edit it to replace
>>
>>Root.ShowPath: false
>>
>>with
>>
>>Root.ShowPath: true
>>
>>Then you should get some extra output from ROOT. That may help
>>us to sort things out.
>>I woiuld recommenr you to install ROOT from
>>
>>http://www.usatlas.bnl.gov/~fine/downloadRoot.html
>>
>>This should set your env properly and automatically.
>>
>>Hope this helps,
>>
>> Valeri
>>
>>
>>> Any explanation?
>>>
>>>Pere
>>>
>>>------------------------------------------------------------
>>>Pere Mato CERN, EP Division, CH 1211 Geneva 23, Switzerland
>>> e-mail: Pere.Mato@cern.ch tel: +41 22 76 78696
>>> fax: +41 22 76 79425 gsm: +41 79 20 10855
>>>
>>>
>>>
>>>
>>
>
--
Org: CERN, European Laboratory for Particle Physics.
Mail: 1211 Geneve 23, Switzerland
E-Mail: Fons.Rademakers@cern.ch Phone: +41 22 7679248
WWW: http://root.cern.ch/~rdm/ Fax: +41 22 7679480
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