I had problem with non zero value when I turn on PRINTK_TIME.
Part of log. Zero value is only before sched starting.
[ 0.000000] Movable zone: 0 pages used for memmap
[ 0.000000] Self modified code enable
[42949372.960000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
[42949372.960000] Kernel command line: console=ttyUL0,115200
[42949372.960000] xlnx,xps-intc-1.00.a #0 at 0x40000000, num_irq=8, edge=0x0
I think I need to set this starting value to zero.
Could you give me a hit where the problem can be?