R version 3.1.1 RC (2014-07-04 r66081) -- "Sock it to Me"
Copyright (C) 2014 The R Foundation for Statistical Computing
Platform: x86_64-unknown-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> ## Example in which the fit for the null deviance fails to converge:
> # https://stat.ethz.ch/pipermail/r-help/2012-May/313161.html
> Y <- c(rep(0,35),1,2,0,6,8,16,43)
> beta <- 42:1
> cst <- lchoose(42, beta)
> tau <- (beta^2)/2
> fit <- glm(formula = Y ~ offset(cst) + beta + tau, family = poisson)
Warning messages:
1: glm.fit: algorithm did not converge 
2: In glm(formula = Y ~ offset(cst) + beta + tau, family = poisson) :
  fitting to calculate the null deviance did not converge -- increase 'maxit'?
> 
> proc.time()
   user  system elapsed 
  0.136   0.016   0.144