![]() ![]() ![]() One way around this is to find the code that causes the error, and run R with a C++ debugger. If you are working in RStudio, the session is aborted, and you may not be able to retrieve the error messaging needed to diagnose and/or report the bug. If you are adding new code which triggers a C++ bug (or find one in existing code), this can result in a segfault. Running R code with the C++ debugger attachedĪs Arrow has C++ code at its core, debugging code can sometimes be tricky when errors originate in the C++ rather than the R layer. For this, you will need to run R with the C++ debugger attached. This output provides the R traceback however, it doesn’t provide any information about the exact line of C++ code from which the segfault originated. > S3FileSystem$create()ġ: (function (anonymous, access_key, secret_key, session_token, role_arn, session_name, external_id, load_frequency, region, endpoint_override, scheme, background_writes) )(access_key = "", secret_key = "", session_token = "", role_arn = "", session_name = "", external_id = "", load_frequency = 900L, region = "", endpoint_override = "", scheme = "", background_writes = TRUE, anonymous = FALSE)Ģ: exec(fs_S3FileSystem_create, !!!args) ![]() Here is an example from a bug which existed at time of writing. ![]() If you re-run your code in a command-line R session, the session isn’t automatically aborted and so it will be possible to copy the error message accompanying the segfault. If you are working in the RStudio IDE, your R session will be aborted if there is a segfault. Getting more descriptive C++ error messages after a segfault ![]()
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