as.data.frame segfaults on large lists (PR#8141)
Under Valgrind on x86_64 I get ==27405== Access not within mapped region at address 0x33FFEFD8 ==27405== at 0x447045: Rf_substituteList (coerce.c:2003) ==27405== Stack overflow in thread 1: can't grow stack to 0x33FFEF98 -thomas
On Sun, 18 Sep 2005, Peter Dalgaard wrote:
ulrich.poetter at ruhr-uni-bochum.de writes:
Full_Name: Ulrich Poetter Version: 2.1.1 OS: i686-pc-linux-gnu FC2 Submission from: (NULL) (134.147.95.187) as.data.frame() segfaults on lists with very many elements:
dfn <- rep(list(rep(0,2)),198000) test <- as.data.frame.list(dfn)
Process R segmentation fault at Sun Sep 18 17:06:02 2005
Not for me on FC4. The process size grows to about 180M and the system thrashes badly, but the calculation runs to completion. It's not unlikely that we are ignoring a failed allocation somewhere, but there's not much hope of finding it from the available information. You could try running under gdb and see where things go wrong for you. -- O__ ---- Peter Dalgaard ?ster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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Thomas Lumley Assoc. Professor, Biostatistics tlumley at u.washington.edu University of Washington, Seattle