Keep in mind daily snapshots are not thoughly tested
and can have major problems. left out packes, compile errors etc
I have dealt with enough of them that generally the fault is the uploader
and not the installer hince yourself.

I have found 1.04 and FPC 2.6.0 have been stable for me, I intentionly tried to crash
my machine and have yet to do so

The most damage I have done was cause my system to run out of memory, even then
it did not freeze or lockup just bogged down the system.
Im not sure what your level of expertise is on linux or Lazarus in general
but daily snapshots tend to be for those that want to see new features
functions, and modification in general. in otherwords the are for profesionals
in a manner of speaking.n And as I have said they generaly have some bugs
you have to work out.
with that said I would stick to stable realeases.