[Verse 1] In kernel space where chaos breeds Multiple threads with racing needs Shared memory becomes a battlefield Without protection, data yields Critical sections cry for guards While interrupts pull different cards The scheduler weaves between the cores As corruption seeps through unlocked doors [Chorus] Mutex sleeps when blocked, it waits Spinlock burns but never breaks Semaphore counts the precious few Choose your primitive, see it through Lock and unlock, the sacred dance Give concurrency no chance [Verse 2] Mutex holder takes a nap If the resource's in another's lap Sleep state saves the precious cycles While other tasks break free from idols But spinlock spins in active loops CPU cycles burn in groups Fast and fierce for brief delays When sleeping costs outweigh the pays [Chorus] Mutex sleeps when blocked, it waits Spinlock burns but never breaks Semaphore counts the precious few Choose your primitive, see it through Lock and unlock, the sacred dance Give concurrency no chance [Bridge] Counting semaphore holds the key Binary semaphore sets you free Producer fills while consumer drains Resource pools with counting chains Deadlock lurks when order breaks Priority inversion overtakes Choose your weapon, know the cost One wrong move and all is lost [Verse 3] Interrupt context needs the spin Sleeping locks just cannot win Process context loves to yield Mutex makes the safer shield Reader writer splits the load Multiple readers share the road Single writer claims the stage Optimizing every page [Final Chorus] Mutex sleeps when blocked, it waits Spinlock burns but never breaks Semaphore counts the precious few Choose your primitive, see it through Lock and unlock, the sacred dance Give concurrency no chance Kernel sync will save the day When primitives show the way [Outro] Critical sections stand protected Race conditions get rejected Synchronization wins the fight Keeping shared resources right
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