SEGV in mzR:::rampOpen(filename)

[sneumann]

Hi, the BioC build system reports a SEGV for 2.29.1 on Linux and MacOS in the tests:

> BiocGenerics:::testPackage("mzR")
Loading required namespace: XML
reading Tandem.mzid.gz... DONE!

 *** caught segfault ***
address (nil), cause 'memory not mapped'

Traceback:
 1: mzR:::rampOpen(filename)
 2: func()
 3: system.time(func(), gcFirst = RUnitEnv$.gcBeforeTest)
 4: doTryCatch(return(expr), name, parentenv, handler)
 5: tryCatchOne(expr, names, parentenv, handlers[[1L]])
 6: tryCatchList(expr, classes, parentenv, handlers)
 7: tryCatch(expr, error = function(e) {    call <- conditionCall(e)    if (!is.null(call)) {        if (identical(call[[1L]], quote(doTryCatch)))             call <- sys.call(-4L)        dcall <- deparse(call, nlines = 1L)        prefix <- paste("Error in", dcall, ": ")        LONG <- 75L        sm <- strsplit(conditionMessage(e), "\n")[[1L]]        w <- 14L + nchar(dcall, type = "w") + nchar(sm[1L], type = "w")        if (is.na(w))             w <- 14L + nchar(dcall, type = "b") + nchar(sm[1L],                 type = "b")        if (w > LONG)             prefix <- paste0(prefix, "\n  ")    }    else prefix <- "Error : "    msg <- paste0(prefix, conditionMessage(e), "\n")    .Internal(seterrmessage(msg[1L]))    if (!silent && isTRUE(getOption("show.error.messages"))) {        cat(msg, file = outFile)        .Internal(printDeferredWarnings())    }    invisible(structure(msg, class = "try-error", condition = e))})
 8: try(system.time(func(), gcFirst = RUnitEnv$.gcBeforeTest))
 9: .executeTestCase(funcName, envir = sandbox, setUpFunc = .setUp,     tearDownFunc = .tearDown)
10: .sourceTestFile(testFile, testSuite$testFuncRegexp)
11: RUnit::runTestSuite(suite)
12: BiocGenerics:::testPackage("mzR")

I can reproduce locally. There has been one successful build of macOS 2.29.1 binaries on https://bioconductor.org/packages/3.15/bioc/html/mzR.html sometime in the past, so the issue might have cropped up after our last commit.

The 2.28.0 https://master.bioconductor.org/checkResults/3.14/bioc-LATEST/mzR/ builds fine on BioC, but I get the same SEGV on my system with its random combination of package versions.

If we get the updated pwiz in soon, we might ignore fixing the root cause of this SEGV here.

Yours, Steffen

[jorainer]

Honestly, I would try to focus all efforts on the mzR/pwiz update.