*** caught segfault *** address 0xffffffff9a378e20, cause 'memory not mapped'
Entering edit mode
Nolan • 0
Last seen 3.0 years ago
United States

I am following the ATACseqQC vignette (https://bioconductor.org/packages/release/bioc/vignettes/ATACseqQC/inst/doc/ATACseqQC.html) to analyze several ATAC seq samples, and I keep getting a segfault error when I run

outPath <- "splited"
## shift the coordinates of 5'ends of alignments in the bam file
## if you don't have an available TxDb, please refer
## GenomicFeatures::makeTxDbFromGFF to create one from gff3 or gtf file.
seqlev <- c("chr1", "chr2", "chr3", "chr4", "chr5", 
             "chr6", "chr7", "chr8", "chr9", "chr10", 
             "chr11", "chr12", "chr13", "chr14", "chr15",
             "chr16", "chr17", "chr18", "chr19", "chr20",
             "chr21", "chr22")
seqinformation <- seqinfo(TxDb.Hsapiens.UCSC.hg.38knownGene)
which <- as(seqinformation[seqlev], "GRanges")
gal <- readBamFile(bamfile, tag=tags, which=which, asMates=TRUE, bigFile=TRUE)
shiftedBamfile <- file.path(outPath, "shifted.bam")
gal1 <- shiftGAlignmentsList(gal, outbam=shiftedBamfile)

I have changed from the original vignette to get all 'normal' chromosomes from just "chr1". I also am using TxDb.Hsapiens.UCSC.hg38.knownGene rather than TxDb.Hsapiens.UCSC.hg19.knownGene. The error comes when shifting the alignments using shiftGAlignmentsList, and the error I get is

 *** caught segfault ***
address 0xffffffff9a378e20, cause 'memory not mapped'

 1: .Call(.merge_bam, files, destination, overwrite, header, region,     byQname, addRG, compressLevel1)
 2: doTryCatch(return(expr), name, parentenv, handler)
 3: tryCatchOne(expr, names, parentenv, handlers[[1L]])
 4: tryCatchList(expr, classes, parentenv, handlers)
 5: tryCatch({    files <- sapply(files, .normalizePath)    destination <- .normalizePath(destination)    region <- local({        x <- as(region, "GRanges")        if (1L < length(x))             stop("'region' must specify one range")        sprintf("%s:%d-%d", as.character(seqnames(x)), start(x),             end(x))    })    if (!overwrite && file.exists(destination)) {        msg <- sprintf("'%s' exists, '%s' is FALSE\n  %s: %s",             "destination", "overwrite", "destination", destination)        stop(msg)    }    header <- .normalizePath(header)    destination <- .Call(.merge_bam, files, destination, overwrite,         header, region, byQname, addRG, compressLevel1)    if (indexDestination)         indexBam(destination)    destination}, error = function(err) {    msg <- sprintf("'mergeBam' %s", conditionMessage(err))    stop(msg)})
 6: .local(files, destination, ...)
 7: mergeBam(outfile, destination = tempfile(fileext = ".bam"), indexDestination = TRUE,     header = meta$file)
 8: mergeBam(outfile, destination = tempfile(fileext = ".bam"), indexDestination = TRUE,     header = meta$file)
 9: shiftGAlignmentsList(gal, outbam = shiftedBamfile)

I have referred to this stackoverflow post (https://stackoverflow.com/questions/49190251/caught-segfault-memory-not-mapped-error-in-r) that mentioned something similar, but reinstalling/updating my packages did not work. I would love any help fixing what should be a fairly straightforward analysis! Here is my sessionInfo:

R version 4.0.0 (2020-04-24)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Red Hat Enterprise Linux

Matrix products: default
BLAS/LAPACK: /zapps7/intel_parallel_studio_xe/2020/compilers_and_libraries_2020.0.166/linux/mkl/lib/intel64_lin/libmkl_gf_lp64.so

[1] C

attached base packages:
[1] stats4    parallel  stats     graphics  grDevices utils     datasets
[8] methods   base

other attached packages:
 [1] TxDb.Hsapiens.UCSC.hg38.knownGene_3.10.0
 [2] GenomicFeatures_1.42.3
 [3] AnnotationDbi_1.52.0
 [4] Biobase_2.50.0
 [5] Rsamtools_2.6.0
 [6] Biostrings_2.58.0
 [7] XVector_0.30.0
 [8] GenomicRanges_1.42.0
 [9] GenomeInfoDb_1.26.7
[10] IRanges_2.24.1
[11] ggplot2_3.3.3
[12] ATACseqQC_1.14.4
[13] S4Vectors_0.28.1
[14] BiocGenerics_0.36.1

loaded via a namespace (and not attached):
  [1] colorspace_2.0-1              ellipsis_0.3.2
  [3] futile.logger_1.4.3           rstudioapi_0.13
  [5] farver_2.1.0                  ChIPpeakAnno_3.24.2
  [7] bit64_4.0.5                   interactiveDisplayBase_1.28.0
  [9] fansi_0.5.0                   xml2_1.3.2
 [11] motifStack_1.34.0             splines_4.0.0
 [13] cachem_1.0.5                  ade4_1.7-16
 [15] polynom_1.4-0                 dbplyr_2.1.1
 [17] png_0.1-7                     graph_1.68.0
 [19] shiny_1.6.0                   HDF5Array_1.18.1
 [21] BiocManager_1.30.15           compiler_4.0.0
 [23] httr_1.4.2                    assertthat_0.2.1
 [25] Matrix_1.3-4                  fastmap_1.1.0
 [27] lazyeval_0.2.2                limma_3.46.0
 [29] later_1.2.0                   formatR_1.11
 [31] htmltools_0.5.1.1             prettyunits_1.1.1
 [33] tools_4.0.0                   gtable_0.3.0
 [35] glue_1.4.2                    GenomeInfoDbData_1.2.4
 [37] dplyr_1.0.6                   rappdirs_0.3.3
 [39] Rcpp_1.0.6                    vctrs_0.3.8
 [41] rhdf5filters_1.2.1            multtest_2.46.0
 [43] rtracklayer_1.50.0            stringr_1.4.0
 [45] mime_0.10                     lifecycle_1.0.0
 [47] ensembldb_2.14.1              XML_3.99-0.6
 [49] AnnotationHub_2.22.1          edgeR_3.32.1
 [51] zlibbioc_1.36.0               MASS_7.3-54
 [53] scales_1.1.1                  BSgenome_1.58.0
 [55] hms_1.1.0                     promises_1.2.0.1
 [57] MatrixGenerics_1.2.1          ProtGenerics_1.22.0
 [59] SummarizedExperiment_1.20.0   RBGL_1.66.0
 [61] rhdf5_2.34.0                  AnnotationFilter_1.14.0
 [63] lambda.r_1.2.4                yaml_2.2.1
 [65] curl_4.3.1                    memoise_2.0.0
 [67] biomaRt_2.46.3                stringi_1.6.2
 [69] RSQLite_2.2.7                 BiocVersion_3.12.0
 [71] randomForest_4.6-14           BiocParallel_1.24.1
 [73] rlang_0.4.11                  pkgconfig_2.0.3
 [75] matrixStats_0.59.0            bitops_1.0-7
 [77] lattice_0.20-41               purrr_0.3.4
 [79] Rhdf5lib_1.12.1               labeling_0.4.2
 [81] htmlwidgets_1.5.3             GenomicAlignments_1.26.0
 [83] bit_4.0.4                     tidyselect_1.1.1
 [85] magrittr_2.0.1                R6_2.5.0
 [87] generics_0.1.0                DelayedArray_0.16.3
 [89] DBI_1.1.1                     withr_2.4.2
 [91] preseqR_4.0.0                 pillar_1.6.1
 [93] survival_3.2-11               KEGGREST_1.30.1
 [95] RCurl_1.98-1.3                tibble_3.1.2
 [97] crayon_1.4.1                  futile.options_1.0.1
 [99] KernSmooth_2.23-20            utf8_1.2.1
[101] BiocFileCache_1.14.0          progress_1.2.2
[103] locfit_1.5-9.4                grid_4.0.0
[105] blob_1.2.1                    GenomicScores_2.2.0
[107] digest_0.6.27                 xtable_1.8-4
[109] VennDiagram_1.6.20            httpuv_1.6.1
[111] regioneR_1.22.0               openssl_1.4.4
[113] munsell_0.5.0                 askpass_1.1
ATACseqQC • 1.4k views
Entering edit mode
Haibo Liu • 0
Last seen 8 days ago
United States

Hello Nolan,

Based on the error you got, I think your computer RAM is not big enough for this analysis. Usually I use a high performance computer cluster to do analyze.


Entering edit mode

Haibo, Thank you for the quick response. I wrote the analysis in a bash script, and submit the job on a login node on my department's server.

bash sample1.sh

where the contents of sample1.sh was


module load r/4.0
Rscript AQseqWC_asmple1.R > log.txt 2>&1 &

I tried to submit a slurm job with more resources, but, for security purposes, our compute nodes do not have internet access. The biomaRt package is referenced online internally by ATACseqQC, and this requires an internet connection. When I try running a slurm job with more resources, I get the following error:

Possible Ensembl SSL connectivity problems detected.
Please see the 'Connection Troubleshooting' section of the biomaRt vignette
vignette('accessing_ensembl', package = 'biomaRt')Error in curl::curl_fetch_memory(url, handle = handle) :
  Failed connect to www.ensembl.org:443; Network is unreachable

I referred to https://www.bioconductor.org/packages/devel/bioc/vignettes/biomaRt/inst/doc/accessing_ensembl.html#connection-troubleshooting for connection help, but none of the suggestions worked/applied in this case. Do you have any suggestions for this issue?


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