similar to: segfault when applying strange coercion (PR#2923)

Hi, the following example aiming at a class containing a logical slot segfaults under R-1.9.0 when `gctorture(on = TRUE)' is used: Code code (dummy.c): #include <Rdefines.h> SEXP foo() { SEXP ans; PROTECT(ans = NEW_OBJECT(MAKE_CLASS("test"))); SET_SLOT(ans, install("lgl"), allocVector(LGLSXP, 1)); LOGICAL(GET_SLOT(ans,

I've managed to trap the following segfault with xxgdb and gctorture() set. The segfault seems to move around if gctorture() is not set, but has now occurred twice in the same spot with it set. xxgdb gives the message Program received signal SIGSEGV, Segmentation fault. 0x71244 in RunGenCollect (size_needed=2) at memory.c:1027 and the source listing points to FORWARD_CHILDREN(s); in the

Dear r-devel readers, I have a pretty deep problem with package loading and unloading in the development version of the lme4 package <https://github.com/lme4/lme4>; it's not boiled down to a properly minimal example yet (this has been difficult), but I am posting anyway in the hopes that someone has ideas about how to proceed farther, since I'm nearly stumped. Apologies in advance

Hi all, It seems that getAttr doesn't return "names" attribute properly as in getAttrib(x, R_NamesSymbol)); If you look at section 4.7.4 in "Writing R Extensions", the second example of SEXP out(SEXP, SEXP) returns NULL for the names attribute of the outer product. This is true for R 1.7.0 on both Win2000 with mingw and Redhat 9.0 with gcc. Is there something I am

I need to convert a dataframe to a record-structure, to be able to encode it later in JSON. Suppose this is the data: mydata <- data.frame(foo=1:3, bar=c("M","M","F")); I would like to convert this to a unnamed list (json array) of key-value pairs. For example like this: apply(data.frame(foo=1:3, bar=c("M","M","F")),1,as.list)

Found the simpliest way of seeing I bug I encountered doing "R CMD check --use-gct": Just launch R (with --vanilla), and do this: > ?gctorture # this work > gctorture() > ?gctorture Error in gzfile(file, "rb") : can only weakly reference/finalize reference objects # this does not It seems that when gctorture() is on gzfile() doesn't work.

Hi all, I am not able to export an ALTREP object when `gctorture` is on in the worker. The package simplemmap can be used to reproduce the problem. See the example below ``` ## Create a temporary file filePath <- tempfile() con <- file(filePath, "wrb") writeBin(rep(0.0,10),con) close(con) library(simplemmap) library(parallel) cl <- makeCluster(1) x <- mmap(filePath,

The R script I run daily for hours looks like this: while (!finish) { Sys.sleep(0.1) time = as.integer(format(Sys.time(), "%H%M")) # always crash here if (new.data.timestamp() <= time) next # ... do some jobs for about 2 minutes ... gc() } Basically it waits for new data, which comes in every 10 minutes, and do some jobs, then gc(), then loop again. It

This Index: src/main/altrep.c =================================================================== --- src/main/altrep.c (revision 79385) +++ src/main/altrep.c (working copy) @@ -275,10 +275,11 @@ SEXP psym = ALTREP_SERIALIZED_CLASS_PKGSYM(info); SEXP class = LookupClass(csym, psym); if (class == NULL) { - SEXP pname = ScalarString(PRINTNAME(psym)); + SEXP pname =

I've forgotten to submit this as bug report (and haven't easily seen how to debug). The bug is both for is.na() and is.nan() {which makes much sense since the C code of the two is very similar!}; only one is shown below. Martin ------- start of forwarded message ------- From: Martin Maechler <maechler@stat.math.ethz.ch> To: R-core@stat.math.ethz.ch Subject: another is.nan

I'm trying to learn about R's PROTECT system. To that end I've tried to create an example of C code that doesn't protect anything. I was hoping it would either segfault from trying to access deallocated memory, or maybe print out nonsense results because the unprotected memory got overwritten, but I can't make either happen. Here's my current code (all in R, using the

Hi, I'm troubleshooting some native code on Windows that very occationally (and semi-randomly) crashes R. Already looked at "everything", I just want to double check that it is safe to UNPROTECT() allocated variables as soon as they are assigned to, say, a PROTECTed list. >From (R v2.3.0) Section 5.7.1 "Handling the effects of garbage collection" in "Writing R

In R version 2.6.1 (2007-11-26) and R version 2.6.1 Patched (2008-01-19 r44061) on openSUSE 10.2 (X86-64) > gctorture() > proc.time() Error: protect(): protection stack overflow The problem with this is that then R CMD check --use-gct foo ALWAYS FAILS with > cat("Time elapsed: ", proc.time() - get("ptime", pos = 'CheckExEnv'),"\n") Error in

Hi, I'm quite knew in R, so I might not have the R specific jargon. But here is my problem, I'm trying to access and use variabels given by a function environment, more specifically the rho in do_optim in src/main/optim.c According to the documentation http://cran.r-project.org/doc/manuals/R-ints.html#The-_0027data_0027 the envsxp is defined as a tagged pairlist. "ENVSXP: Pointers

On 15/07/2009 8:08 PM, Herv? Pag?s wrote: > Hi, > > > x <- c(a=10, b=20) > > length(x) <- 1 > > x > a > 10 > > But with gctorture turned on, I get: > > > gctorture(TRUE) > > x <- c(a=10, b=20) > > length(x) <- 1 > > x > a > "a" <---- ??? > > > x <-

I think this is another one of the same kind of bugs in ts: Version 0.64.1 (May 8, 1999) ... > z <- ts(matrix(1:20,10,2), start=c(1969,1), frequency=12) > (z > 5) | (z < 2) Error: invalid time series parameters specified > Paul -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read

Dear ALL I don't know why I can see this error in run this sentences. In paste("V", 1L:cols, sep = "") : NAs introduced by coercion DATA<-read.delim ("D:\\DATA\\GeneExpression.txt",header=FALSE) I will be glad if you help me. Best Regards, Stat Consult [[alternative HTML version deleted]]

How do I fix this error ? I tried coercion to a vector but that didn't work. msci <-read.csv("..MSCIexUS.csv", header=TRUE) head(msci) Date index 1 Dec 31, 1969 100 2 Jan 30, 1970 97.655 3 Feb 27, 1970 96.154 4 Mar 31, 1970 95.857 5 Apr 30, 1970 85.564 6 May 29, 1970 79.005 > str(msci) 'data.frame': 510 obs. of 2 variables: $ Date : Factor w/ 510

Hi, I am looking into a way to hook into the R coercion framework to allow me to convert table-like data stored within a COM object into a data.frame. Some of our COM objects have their own table-like data storage, and from R's point of view it's an object (EXTPTRSXP) decoarated with a sepcial symbol so we can easily identify it. COM_Table <- a_method_that_creates_the_object()

Have searched through the archives but have been unable to find any related issues - hopefully I'm not bringing up an old topic. Am using RW1041 on a Windows NT on a machine with 1Gb of memory. Have a function doit() that reads in a chunk of data using readBin, performs a regression, saves out coeffs and then returns. When using Rgui with the default memory limit of 256Mb I'm able to