[Verse 1] When your module won't load up right Check the message buffer for the light dmesg will show you what went wrong Symbol errors singing their song Version magic must align Or your module won't combine [Chorus] Debug with dmesg, check the logs printk statements clear the fog modinfo shows dependencies lsmod lists what the system sees Step by step, trace the flow Find the bug and let it go [Verse 2] Loading fails with unknown symbol Check your exports, make them nimble Module dot symvers holds the key Version checksums must agree insmod verbose gives you more Error details at the core [Chorus] Debug with dmesg, check the logs printk statements clear the fog modinfo shows dependencies lsmod lists what the system sees Step by step, trace the flow Find the bug and let it go [Bridge] When modules clash and won't play nice Dependency chains need your device Check the order, check the links Missing symbols break the drinks Kernel debugger breaks it down Symbol tables all around [Verse 3] kgdb connects when systems freeze Remote debugging puts you at ease Add some printks, trace the path Avoid the kernel's angry wrath Module parameters help you test Different values find what's best [Chorus] Debug with dmesg, check the logs printk statements clear the fog modinfo shows dependencies lsmod lists what the system sees Step by step, trace the flow Find the bug and let it go [Outro] From loading fails to runtime crash Debug your modules, make them last Tools and techniques light the way Working modules save the day
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