From ef5e52f611fe3a69542d07b129efbb4c743f6077 Mon Sep 17 00:00:00 2001
From: cvetan <cvetan@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Tue, 27 Oct 2009 01:19:57 +0000
Subject: [PATCH] Fix for PROOF reco: Correct restoration of the magnetic field
 map on the workers.

---
 STEER/AliReconstruction.cxx | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/STEER/AliReconstruction.cxx b/STEER/AliReconstruction.cxx
index 167c7331929..e657bcde2f8 100644
--- a/STEER/AliReconstruction.cxx
+++ b/STEER/AliReconstruction.cxx
@@ -1367,6 +1367,7 @@ void AliReconstruction::SlaveBegin(TTree*)
   TProofOutputFile *outProofFile = NULL;
   if (fInput) {
     if (AliDebugLevel() > 0) fInput->Print();
+    if (AliDebugLevel() > 10) fInput->Dump();
     if (AliReconstruction *reco = (AliReconstruction*)fInput->FindObject("AliReconstruction")) {
       *this = *reco;
     }
@@ -1384,7 +1385,13 @@ void AliReconstruction::SlaveBegin(TTree*)
       }
     }
     if (AliMagF *map = (AliMagF*)fInput->FindObject("MagneticFieldMap")) {
-      TGeoGlobalMagField::Instance()->SetField(map);
+      AliMagF *newMap = new AliMagF(*map);
+      if (!newMap->LoadParameterization()) {
+	Abort("AliMagF::LoadParameterization", TSelector::kAbortProcess);
+	return;
+      }
+      TGeoGlobalMagField::Instance()->SetField(newMap);
+      TGeoGlobalMagField::Instance()->Lock();
     }
     if (TNamed *outputFileName = (TNamed*)fInput->FindObject("PROOF_OUTPUTFILE"))
       fProofOutputFileName = outputFileName->GetTitle();
-- 
2.43.0