Mathematica 12 crashes upon taking the Log of a double series
This bug has been fixed as of version 12.1.0
In[1]:= $Version
Out[1]= 12.1.0 for Linux x86 (64-bit) (March 18, 2020)
In[2]:= Log[SeriesData[p,DirectedInfinity[1],List[SeriesData[e,0,List[1,0,Rational[-3,2]],0,3,1],0,SeriesData[e,0,List[3,0,Rational[-3,2]],0,3,
1],0,SeriesData[e,0,List[Rational[9,2],0,12],0,3,1],0,SeriesData[e,0,List[Rational[27,2],0,63],0,3,1],0,SeriesData[e,0,List[Rational[405,8],0,R
ational[5499,16]],0,3,1]],0,9,2]]
2 2 2 2
3 e 3 (1 + e ) 39 e 9 (2 + 9 e ) -4
Out[2]= Log[1 - ----] + ---------- + ----- + ------------ + O[p]
2 p 2 3
4 p 2 p