adb4e6e8c5
Previously, there were a number of circumstances where these were not getting reset properly, leading to some destroyed mutexes having holders of the last thread which locked them, and some with "-1", which meant that the next call to "mutex_lock" just behaved as if the lock was still valid (!), and so the unlucky caller would deadlock forever. Now we properly reset these fields, which means from now on attempts to lock or unlock destroyed mutexes will lead to "PANIC: uninitialized mutex" on KDEBUG kernels, and (as before) an infinite deadlock on non-KDEBUG kernels (perhaps we should store the thread_id of the locker on non-KDEBUG kernels also?). As the next commits will show, this already uncovered a number of bugs, and there are of course potentially more strange deadlocks caused by this.
Haiku
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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.
Goals
- Sensible defaults with minimal configuration required.
- Clean, clear, concise code.
- Unified desktop environment.
Trying Haiku
Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.
Compiling Haiku
See ReadMe.Compiling.
Contributing
Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!
Contributing code
If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.
If you're having trouble finding something in the source tree, you can use one of our OpenGrok servers:
- http://xref.plausible.coop/ (provided by Landon Fuller)
- http://code.metager.de/source/xref/haiku (provided by MetaGer)
Contributing documentation
The main piece of documentation that still needs work are the API docs (found
in the tree at docs/user). Just find an undocumented class, write
documentation for it, and submit a patch.
Contributing translations
See wiki:i18n.
Contributing software ports
See HaikuPorts.
Contributing to our infrastructure
See Infrastructure.