Dear R users, since I updated to R-3.0 I get some error messages while using a parallelized process with the packages foreach and doMC. The error message is: Error: Error in sendMaster(try(lapply(X = S, FUN = FUN, ...), silent = TRUE)) (from doMC.R#170) : ignoring SIGPIPE signal The stack saved with dump.frames and loaded via debugger() is: Available environments had calls: 1: #3: do.call(paste(algorithm.type, "Ncdf", sep = ""), call.args) 2: gapfillNcdf(amnt.artgaps = list(list(c(0, 0), c(0, 0))), amnt.iters = list( 3: gapfillNcdf.R#427: do.call(.gapfillNcdfDatacube, args.Datacube) 4: (function (args.call.SSA = list(), calc.parallel = TRUE, datacube, datapts. 5: gapfillNcdf.R#837: foreach(i = 1:max.cores, .combine = rbindMod, .multicomb 6: do.R#171: e$fun(obj, substitute(ex), parent.frame(), e$data) 7: doMC.R#170: mclapply(argsList, FUN, mc.preschedule = preschedule, mc.set.se 8: lapply(seq_len(cores), inner.do) 9: FUN(1:4[[4]], ...) 10: sendMaster(try(lapply(X = S, FUN = FUN, ...), silent = TRUE)) 11: #20: dump.frames.mod(file.name = file.name, file.results = file.results) Up to position 5 these functions are my personal functions that set up the process. I can only debug this error via dum.frames as I run it non interactively on a cluster machine. When I start the foreach loop manually from within the debugger() environment, I can not reproduce the error. Does anyone have a hint on how to find the cause of this error? Cheers Jannis sessionInfo() R version 3.0.0 (2013-04-03) Platform: x86_64-unknown-linux-gnu (64-bit) 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=C LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] parallel stats graphics grDevices datasets utils methods [8] base other attached packages: [1] spectral.methods_0.6.0.110 doMC_1.3.0 [3] iterators_1.0.6 foreach_1.4.1 loaded via a namespace (and not attached): [1] abind_1.4-0 chron_2.3-43 codetools_0.2-8 [4] colorspace_1.2-2 compiler_3.0.0 DistributionUtils_0.5-1 [7] forecast_4.06 fracdiff_1.4-2 grid_3.0.0 [10] lattice_0.20-15 nnet_7.3-7 plotrix_3.5 [13] quadprog_1.5-5 raster_2.1-49 RColorBrewer_1.0-5 [16] RNetCDF_1.6.1-2 Rssa_0.9.10 snow_0.3-12 [19] snowfall_1.84-4 sp_1.0-11 svd_0.3.2-1 [22] tseries_0.10-32 zoo_1.7-10