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Virtualized QEMU (not KVM) sometimes hangs on stage of AP CPUs initialization

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This situation is reproduced in ~25% of launches. Host machine: Mac OS X; virtual machine (under VMware): Ubuntu 12.04.

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No AP CPU starts when building using clang -O0

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We need to implement a memory pool (for fixed-sized blocks) on top of kmalloc, kfree, etc. The current memory pool functions (create_mem_pool, alloc_block, free_block, destroy_mem_pool) have no real implementation; they...

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We need to adopt an existent memory allocator to implement stubs: kmalloc, kfree, etc. Such allocator should be under BSD license.

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We need really hard concurrent tests to check them against deadlocks and race conditions.

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Now the scheduler uses fixed priorities, we need an additional support for dynamic ones. Practically most of the implementation should be located inside the function: static inline void update_priority_quantum(struct thread_data...

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