codereading/basic-bug.txt at master · finallyjustice/codereading · GitHub

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# preempt on desktop/server

As both CONFIG_PREEMPT and CONFIG_PREEMPT_COUNT are not set for desktop/server:

preempt_enable()  ---> barrier()
preempt_disable() ---> barrier()

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# barrier

-

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# locks

- spinlock
- mutex
- rcu
- srcu
- percpu_ref

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# detector

- hang task
- soft lockup
- hard lockup
- rcu stall
- scheduling while atomic
- lockdep: to detect deadlock
- kmemleak: to detect possible kernel memory leaks
- slub debug: use-after-free and out-of-bounds bugs
- kasan: use-after-free and out-of-bounds bugs

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