* When SystemProfiler::_MaybeNotifyProfilerThreadLocked() is called and the conditions are right, it will lock the thread's scheduler spinlock and unblock it. Internally, the unblock will enqueue the thread into the run queue, which causes a ThreadEnqueuedInRunQueue event for SystemProfiler. Since the conditions haven't changed, it now went into _MaybeNotifyProfilerThreadLocked again (this time from the profiler thread context). In there, it will try to lock the profiler thread's scheduling spinlock, which is already locked by the other thread (which is firmly sleeping). Deadlock, KDL. * Before unblocking the profiler thread, unset fWaitingProfilerThread so that further events will not try to unblock it again.
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.