Re: [PATCH][RFC] cpufreq: Bring CPUs up even if cpufreq_online failed

2017-03-28 Thread Rafael J. Wysocki
On Tuesday, March 28, 2017 06:23:17 PM Sebastian Andrzej Siewior wrote: > On 2017-03-25 12:20:11 [+0800], Chen Yu wrote: > > There is a report that after > > commit 27622b061eb4 ("cpufreq: Convert to hotplug state machine"), > > the normal CPU offline/online cycle failed on some platforms. > > Acco

Re: [PATCH][RFC] cpufreq: Bring CPUs up even if cpufreq_online failed

2017-03-28 Thread Sebastian Andrzej Siewior
On 2017-03-25 12:20:11 [+0800], Chen Yu wrote: > There is a report that after > commit 27622b061eb4 ("cpufreq: Convert to hotplug state machine"), > the normal CPU offline/online cycle failed on some platforms. > According to the ftrace result, this problem was triggered on > platforms using acpi-f

Re: [PATCH][RFC] cpufreq: Bring CPUs up even if cpufreq_online failed

2017-03-27 Thread Rafael J. Wysocki
On Sat, Mar 25, 2017 at 5:20 AM, Chen Yu wrote: > There is a report that after > commit 27622b061eb4 ("cpufreq: Convert to hotplug state machine"), > the normal CPU offline/online cycle failed on some platforms. > According to the ftrace result, this problem was triggered on > platforms using acpi

[PATCH][RFC] cpufreq: Bring CPUs up even if cpufreq_online failed

2017-03-24 Thread Chen Yu
There is a report that after commit 27622b061eb4 ("cpufreq: Convert to hotplug state machine"), the normal CPU offline/online cycle failed on some platforms. According to the ftrace result, this problem was triggered on platforms using acpi-freq as the default cpufreq driver, and due to the lack of