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Edit File: bugs.md

BUG REPORTS =========== The following is information for reporting bugs. Please read the file as well as the documentation for the relevant program before posting. This document is more useful for advanced users and the people that package for the distributions. Also if you are an end-user of the programs and not the packager and are using a distribution, check their bug tracker first, you may find its a known bug already. Where to send ------------- You can raise issues on the GitLab issues tracker which is located at https://gitlab.com/procps-ng/procps/issues You will need a GitLab login to do so. Alternatively send comments, bug reports, patches, etc. to the email list procps@freelists.org What to send ------------ It is much more useful to us if a program really crashes to recompile it with make `CFLAGS=-ggdb -O`, run it with `gdb prog` and `run` and send me a stack trace (`bt` command). That said, any bug report is still better than none. strace and ltrace output are very helpful: > strace -o output-file ps --blah > bzip2 output-file The output of `ps --info` is often quite useful, even if the problem is not with ps itself. A lot of the utilities use the same library. Merge Requests -------------- Merge requests are fine to use and give a central place for everyone involved to have a look. Merge requests are found on GitLab at https://gitlab.com/procps-ng/procps/merge_requests It is best to follow up your merge request with an email to the list saying what you have done. Patches ------- While merge requests are preferred, patches are also welcome. Get latest version of the source from upstream git. > git clone git@gitlab.com:procps-ng/procps.git and use `git format-patch` format. It is fine to attach patches as compressed tar balls. When you are about to send very large number of patches consider setting up your personal clone, and send a pull request. > git request-pull commit-id \ > git://gitorious.org/~yourlogin/procps/your-clone.git Kernel-Dependent Patches ------------------------ If you send patches which are specific to *running* with a particular kernel version of /proc, please condition them with the runtime determined variable `linux_version_code` from libproc/version.c. It is the same number as the macro `LINUX_VERSION_CODE` for which the kernel /proc fs code was compiled. A macro is provide in libproc/version.h to construct the code from its components, e.g. > if (linux_version_code < LINUX_VERSION(2,5,41)) > /* blah blah blah */ A startup call to `set_linux_version` may also be necessary. Of course, if a bug is due to a change in kernel file formats, it would be best to first try to generalize the parsing, since the code is then more resilient against future change. Code Structure -------------- A goal is to encapsulate *all* parsing dependent on /proc file formats into the libproc library. If the API is general enough it can hopefully stabilize and then /proc changes might only require updating libproc.so. Beyond that having the set of utilities be simple command lines parsers and output formatters and encapsulating all kernel divergence in libproc is the way to go. Hence if you are submitting a new program or are fixing an old one, keep in mind that adding files to libproc which encapsulate such things is more desirable than patching the actual driver program. (well, except to move it toward the API of the library).