Everything went fine (i.e. not a single crash) for two months with this kernel: 3.5.0-36-generic #57~precise1-Ubuntu SMP
Now the crashes are back (two crashes in two days), current kernel: 3.5.0-40-generic #62~precise1-Ubuntu SMP
@Daniel García: my SSD is encrypted
Everything went fine (i.e. not a single crash) for two months with this kernel: 3.5.0-36-generic #57~precise1-Ubuntu SMP
Now the crashes are back (two crashes in two days), current kernel: 3.5.0-40-generic #62~precise1-Ubuntu SMP
@Daniel García: my SSD is encrypted