Help troubleshooting memory leak when highres=on

I am doing porting work; I am having a memory leak issue in a kernel build with CONFIG_HIGH_RES_TIMERS=y. When highres=on, load average as returned by uptime are always null, and KernelStack from /proc/meminfo steadily grows until the system runs out of memory triggering oom-killer and eventually the whole system hangs. Above memory leak and load average issues are not seen when booting the kernel using highres=off. Any idea where I should start debugging these issues ?