There's a warning stating that "trace_printk() being used... this is a DEBUG kernel" on boot

[Jesse Sung]

When booting a snapdragon kernel, one can see that there's a warning like this:

[ 0.000000] **********************************************************
[ 0.000000] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000] ** **
[ 0.000000] ** trace_printk() being used. Allocating extra memory. **
[ 0.000000] ** **
[ 0.000000] ** This means that this is a DEBUG kernel and it is **
[ 0.000000] ** unsafe for production use. **
[ 0.000000] ** **
[ 0.000000] ** If you see this message and you are not debugging **
[ 0.000000] ** the kernel, report this immediately to your vendor! **
[ 0.000000] ** **
[ 0.000000] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000] **********************************************************