https://bugzilla.novell.com/show_bug.cgi?id=765378 https://bugzilla.novell.com/show_bug.cgi?id=765378#c8 Thomas Renninger <trenn@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED CC| |youquan.song@intel.com InfoProvider|paternot@snap.com.br | --- Comment #8 from Thomas Renninger <trenn@suse.com> 2012-06-15 11:50:57 UTC --- Sorry for the late response. Quick summary: The machine is running fine with the i5 2500 CPU, but if you put in a i3 2100 CPU the machine does not boot unless acpi=off is added. A very nice hint comes from comment #7 where you describe the acpi=strict nohz=off boot parameter workarounds. Hm, that would mean it's not the intel idle driver as this one should still kick in in 12.1, even with acpi=off added. Not 100% sure whether nohz=off prevents cpuidle subsystem to initialize, but I guess not. Adding Intel, this probably still is a mainline issue. It could get verified by trying the latest -vanilla flavor kernel of the day from here: http://download.opensuse.org/repositories/Kernel:/HEAD/standard/x86_64/ You might want to try to blacklist acpi-cpufreq driver. Depending on how intrusive it is for you to provide the data, this might help for further investigations: /proc/cpuinfo # for both CPUs dmesg with working "acpi=strict nohz=off" boot params. Hopefully Intel has an idea. Other related params to further pin things down (for me it looks like a timer issue): clocksource=tsc or clocksource=hpet (whatever is not used by default) hpet=disable or tsc=off (switch off whatever is used by default) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.