Hi, Kurt, > On Wed Jul 29 2020, Alison Wang wrote: > > In the current arm64 defconfig, CONFIG_IRQ_TIME_ACCOUNTING is enabled > > as default. According to my tests on NXP's LayerScape and i.MX > > platforms, the system hangs when running the command "stress-ng > > --hrtimers 1" with CONFIG_IRQ_TIME_ACCOUNTING enabled. Disabling this > > option, the issue disappears. CONFIG_IRQ_TIME_ACCOUNTING causes > > serious performance impact when running hrtimer stress test at the same > time. > > I think instead of disabling the option for all arm64 devices, it might be > better > to analyze the root-cause why the hrtimer test hangs when this option is > enabled. > > +Cc hrtimer maintainers: Thomas and Anna-Maria > [Alison] Yes, I agree. I hope others can give me some clues for the root cause.
Best Regards, Alison Wang
