right now, 4.4 branch is broken for CP2K, there seems to be some error in libfortran that causes incorrect writes. The diff in the restarts looks like:
56,58c56,58 < &FORCEFIELD < PARMTYPE CHM < PARM_FILE_NAME ../sample_pot/water.pot --- > FORCEFIELD, > ,PARMTYPE CHM > ,PARM_FILE_NAME../sample_pot/water.pot so a leading & disappears, and whitespace is being replaced by ',' 4.3.1 and 4.4.0 work fine, 4.4 branch is broken. However, using the 4.3.1 runtime with a 4.4 compiled binary is OK, so I guess it is libgfortran. I have no testcase yet (other than running CP2K and inspect the restart), but will delve into it. -- Summary: [4.4 Regression] incorrect IO Product: gcc Version: 4.4.1 Status: UNCONFIRMED Keywords: wrong-code Severity: normal Priority: P3 Component: libfortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jv244 at cam dot ac dot uk http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40330