Hi,

After I create a long list e.g. with

  x <- vector(mode="list", length=3e9)

many bad things start to happen e.g. some things stop working with a
spurious error message:

  gc()
  # Error in gc() :
# long vectors not supported yet: /home/hpages/src/R-3.3.2/src/main/memory.c:1137

  x_lens <- lengths(x)
  # Error in lengths(x) :
# long vectors not supported yet: /home/hpages/src/R-3.3.2/src/main/memory.c:1668

But then some of them work again:

  gc()
  #          used (Mb) gc trigger    (Mb)   max used    (Mb)
  # Ncells  57046  3.1     368000    19.7     350000    18.7
  # Vcells 138060  1.1 4320596678 32963.6 4500397915 34335.4

while others still fail but now with a different error message:

  x_lens <- lengths(x)
# Error: evaluation nested too deeply: infinite recursion / options(expressions=)?

etc...

The more I go, the more weird things I see so clearly my session
got corrupted. Finally, and not too surprisingly, after playing a
little bit more, my session eventually crashed.

Thanks,
H.

> sessionInfo()
R version 3.3.2 (2016-10-31)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 14.04.3 LTS

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
 [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base


--
Hervé Pagès

Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M1-B514
P.O. Box 19024
Seattle, WA 98109-1024

E-mail: hpa...@fredhutch.org
Phone:  (206) 667-5791
Fax:    (206) 667-1319

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