Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1637008
| From | Pavel Machek <pavel@ucw.cz> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 1/2] thermal: core: Allow orderly_poweroff to be called only once |
| Date | 2017-05-07 23:40 +0200 |
| Message-ID | <tEC4i-2U2-3@gated-at.bofh.it> (permalink) |
| References | <tw1Oh-5tU-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
> thermal_zone_device_check --> thermal_zone_device_update --> > handle_thermal_trip --> handle_critical_trips --> orderly_poweroff > > The above sequence happens every 250/500 mS based on the configuration. > The orderly_poweroff function is getting called every 250/500 mS. > With a full fledged file system it takes at least 5-10 Seconds to > power off gracefully. > > In that period due to the thermal_zone_device_check triggering > periodically the thermal work queues bombard with > orderly_poweroff calls multiple times eventually leading to > failures in gracefully powering off the system. > > Make sure that orderly_poweroff is called only once. Pretty please, can we do it in the core code, not in thermal/? There are other reasons kernel may want to shut the system down, like for example critical battery, and if both thermal _and_ bad battery happen, we want just one shutdown... > Reported-by: Keerthy <j-keerthy@ti.com> > Signed-off-by: Keerthy <j-keerthy@ti.com> And here probably we need your full name. Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
Re: [PATCH v3 1/2] thermal: core: Allow orderly_poweroff to be called only once Pavel Machek <pavel@ucw.cz> - 2017-05-07 23:40 +0200 Re: [PATCH v3 1/2] thermal: core: Allow orderly_poweroff to be called only once Keerthy <j-keerthy@ti.com> - 2017-05-08 06:30 +0200
csiph-web