Error in <TGLLockable::TakeLock>

Hi,

I am trying to run the ALICE masterclass software (alice.physicsmasterclasses.org/M … bpage.html) on a x86_64 machine, but I am getting a segmentation violation and then one of the event view is not available and it gives the errors reported below.

Is this a problem related to the GL library on a 64bit machine? Since it is running smoothly on a 32bit Debian PC.

Thank you very much any suggestion.
Francesco

machine details: HP Compaq elite 8300
OS: Archlinux x86_64, kernel 3.8.4
gcc: 4.8
ROOT: v5-34-05
config.status: Enabled support for alien, asimage, astiff, builtin_afterimage, builtin_ftgl, builtin_glew, cintex, explicitlink, fftw3, fitsio, genvector, krb5, ldap, mathmore, memstat, minuit2, monalisa, mysql, odbc, opengl, pgsql, pythia6, python, reflex, roofit, shadowpw, shared, soversion, ssl, tmva, x11, xft, xml, xrootd.

I’m also attaching the output obtained with gdb.

Error in <TGLLockable::TakeLock>: 'TGLSceneBase Geometry scene' unable to take DrawLock, already DrawLock Warning in <TGLViewerBase::PreRender>: locking of scene 'Geometry scene' failed, skipping. Error in <TGLLockable::TakeLock>: 'TGLSceneBase Event scene' unable to take DrawLock, already DrawLock Warning in <TGLViewerBase::PreRender>: locking of scene 'Event scene' failed, skipping. Error in <TGLLockable::TakeLock>: 'TGLSceneBase Geometry scene' unable to take DrawLock, already DrawLock Warning in <TGLViewerBase::PreRender>: locking of scene 'Geometry scene' failed, skipping. Error in <TGLLockable::TakeLock>: 'TGLSceneBase Event scene' unable to take DrawLock, already DrawLock Warning in <TGLViewerBase::PreRender>: locking of scene 'Event scene' failed, skipping. Error in <TGLLockable::TakeLock>: 'TGLSceneBase Geometry scene' unable to take ModifyLock, already DrawLock Error in <TGLScenePad::TGLScenePad::BeginScene>: could not take scene lock. Error in <TGLScenePad::TGLScenePad::AddObject>: expected scene to be modify-locked

I
gdb.txt (4.99 KB)

Hi,

It’s a bug in mesa drivers (usually with intel drivers). Try turning off DRI, this is the result of googling “archlinux dri disable”:
wiki.archlinux.org/index.php/Intel_Graphics

Of course, you can slo try updating the package :wink:

Cheers,
Matevz