Interview Questions

Linux Device Driver - Interview Questions

Debugging techniques. ?
What is Oops and kernel panic?
Does all Oops result in kernel panic?
What are the tools that you have used for debugging the Linux kernel?
What are the log levels in printk?
Can printk's be used in interrupt context?
How to print a stack trace from a particular function?
What's the use of early_printk( )?
Explan about the various gdb commands.
How to debug crash. Gdb
How debug prints/system trace could help solve above issues
How to debug while system is running
Have you worked in crash dump? How will you solve memory crash, what steps would you take if a crash occurs?
how to debug your driver if u had any buffer issues
Kernel crash dump analysis
Have analyzed kernel panic code dump(what all data it dumps and what do you understand from it)
How to debug crash, what is the first line you see when you see a crash/oops message, explain crash console
How do u debug when an process aborted.
have u debug any issues using jtag/ any other debugger. if yes, how can we get the call stack in the debugger.