

test.jlĬreate a gist with the backtrace, the version info, and any other pertinent information you can think of and open a new issue on Github with a link to the gist. Starting program: /home/sabae/src/julia/usr/bin/julia-debug. Type r to run the process, and bt to generate a backtrace once it segfaults: (gdb) r Note that gdb will sit there, waiting for instructions. Create a debug build of Julia, and run your script inside of a debugged Julia process: $ cd

The procedure is very similar to Segfaults during bootstrap ( sysimg.jl). Create a gist with the backtrace, the version info, and any other pertinent information you can think of and open a new issue on Github with a link to the gist.
#Devdocs vs bootstrap full#
You may need to hit a few times to get the full backtrace. This will start gdb, attempt to run the bootstrap process using the debug build of Julia, and print out a backtrace if (when) it segfaults. Next, manually run the bootstrap process inside of gdb: $ cd base/ Note that this process will likely fail with the same error as a normal make incantation, however this will create a debug executable that will offer gdb the debugging symbols needed to get accurate backtraces. Many factors can contribute toward this process dying unexpectedly, however it is as often as not due to an error in the C-code portion of Julia, and as such must typically be debugged with a debug build inside of gdb.
#Devdocs vs bootstrap code#
Segfaults toward the end of the make process of building Julia are a common symptom of something going wrong while Julia is preparsing the corpus of code in the base/ folder. Please also include the output of versioninfo() in any report you create: julia> versioninfo()ĮRROR: UndefVarError: versioninfo not defined Segfaults during bootstrap ( sysimg.jl) When Julia first starts up, a header is printed out with a version number and date. No matter the error, we will always need to know what version of Julia you are running. If you've been directed to this page, find the symptom that best matches what you're experiencing and follow the instructions to generate the debugging information requested. Including the information from these debugging steps can greatly help the maintainers when tracking down a segfault or trying to figure out why your script is running slower than expected. Congratulations! Collected here are some general procedures you can undergo for common symptoms encountered when something goes awry. Segfaults during bootstrap ( sysimg.jl).Proper maintenance and care of multi-threading locks.printf() and stdio in the Julia runtime.Talking to the compiler (the :meta mechanism).High-level Overview of the Native-Code Generation Process.
