Linux to open LOCKDEP detect kernel deadlock __linux

LOCKDEP is the kernel detection deadlock means, the default is not turned on, need make menuconfig add configuration open, under the hacking kernel option y Select the following configuration

1. [*] Detect Hard and Soft lockups
 2. [*] Detect Hung Tasks
 3. [*]  RT Mutex debugging, Deadlock detection
 4-*-spinlock and Rw-lock debugging:basic checks
 5.-*-Mutex Debugging: Basic Checks
 6-*-Lock debugging:detect Incorrect freeing of live locks
 7. [*] Lock debugging:prove Locking Correctness
 8. [*] Lock usage Statistics

Save configuration Compile install kernel, after reboot proc generate the following file description LOCKDEP opened.

/PROC/LOCKDEP
/proc/lockdep_chains
/proc/lockdep_stat
/proc/locks
/proc/lock_stats

Run the system if there is a deadlock, DMESG will give the message.

Reference: Https://stackoverflow.com/questions/20892822/how-to-use-lockdep-feature-in-linux-kernel-for-deadlock-detection