https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192315
--- Comment #9 from Alexander Motin <m...@freebsd.org> --- (In reply to Steve Wills from comment #8) > (In reply to Alexander Motin from comment #5) > > That does not tell much after you enabled HPET, except that your system does > > have C-states. Reboot without switching to HPET and check again. If C-states > > block working, you should not see states deeper then C1 used even if > > enabled. > > Ok, rebooted without setting HPET: > > meatwad% sysctl kern.timecounter.hardware kern.eventtimer.timer > kern.timecounter.hardware: TSC-low > kern.eventtimer.timer: LAPIC > meatwad% sysctl dev.cpu | grep cx_usage > dev.cpu.0.cx_usage: 22.28% 77.71% 0.00% last 1359us > dev.cpu.0.cx_usage_counters: 17048 59466 0 > dev.cpu.1.cx_usage: 21.54% 78.45% 0.00% last 939us > dev.cpu.1.cx_usage_counters: 17294 62983 0 > dev.cpu.2.cx_usage: 31.10% 68.89% 0.00% last 1146us > dev.cpu.2.cx_usage_counters: 33021 73155 0 > dev.cpu.3.cx_usage: 21.15% 78.84% 0.00% last 738us > dev.cpu.3.cx_usage_counters: 18109 67474 0 > dev.cpu.4.cx_usage: 21.94% 78.05% 0.00% last 447us > dev.cpu.4.cx_usage_counters: 18022 64084 0 > dev.cpu.5.cx_usage: 22.70% 77.29% 0.00% last 682us > dev.cpu.5.cx_usage_counters: 18103 61637 0 > dev.cpu.6.cx_usage: 26.53% 73.46% 0.00% last 430us > dev.cpu.6.cx_usage_counters: 33056 91541 0 > dev.cpu.7.cx_usage: 22.60% 77.39% 0.00% last 6us > dev.cpu.7.cx_usage_counters: 16724 57250 0 > meatwad% sysctl -a | grep cx_lowest > hw.acpi.cpu.cx_lowest: C8 > dev.cpu.0.cx_lowest: C8 > dev.cpu.1.cx_lowest: C8 > dev.cpu.2.cx_lowest: C8 > dev.cpu.3.cx_lowest: C8 > dev.cpu.4.cx_lowest: C8 > dev.cpu.5.cx_lowest: C8 > dev.cpu.6.cx_lowest: C8 > dev.cpu.7.cx_lowest: C8 > meatwad% Hmm. It looks like the deepest C-state was actually disabled automatically. Then it is surprising to have any problem with LAPIC. But, just to be sure that BIOS does not fool us, could you disable all C-states completely with something like this in rc.conf: performance_cx_lowest="C1" economy_cx_lowest="C1" , and if it won't help, also disable C1E in BIOS. -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
