[Verse 1] When threads collide in kernel space Spinning wheels that never race Lock contention builds its cage While processors burn their rage Spinlocks holding, never yield Frozen processes revealed [Chorus] Lockdep warns when patterns twist Deadlock danger can't be missed A grabs B, then B wants A Circular waits will make you pay Stack traces tell the tangled tale When synchronization starts to fail [Verse 2] Four conditions seal your fate Mutual exclusion at the gate Hold and wait creates the snare No preemption, resources shared Circular waiting closes tight Debug tools will shine their light [Chorus] Lockdep warns when patterns twist Deadlock danger can't be missed A grabs B, then B wants A Circular waits will make you pay Stack traces tell the tangled tale When synchronization starts to fail [Bridge] Perf record shows the spinning cost CPU cycles being lost Lock stat reveals contention heat Where competing threads compete Ftrace captures lock events Timing every consequence [Verse 3] Lock ordering breaks the chain Hierarchical rules maintain Timeout mechanisms flee From eternal dependency Static analysis predicts Where your locking logic tricks [Chorus] Lockdep warns when patterns twist Deadlock danger can't be missed A grabs B, then B wants A Circular waits will make you pay Stack traces tell the tangled tale When synchronization starts to fail [Outro] Debug early, catch the signs Before your system flatlines Lock validation saves the day Keep deadlocks held at bay
← Memory Debugging with KASAN & SLUB Debug | Kernel Module Debugging Techniques →