Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1309283

Re: [PATCH v2] reboot: Backup orderly_poweroff

From One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Newsgroups linux.kernel
Subject Re: [PATCH v2] reboot: Backup orderly_poweroff
Date 2016-01-14 14:30 +0100
Message-ID <qQQ8r-7DE-29@gated-at.bofh.it> (permalink)
References (1 earlier) <qQM4O-4UH-13@gated-at.bofh.it> <qQMoa-51q-9@gated-at.bofh.it> <qQN0S-5vL-15@gated-at.bofh.it> <qQNDz-5Lf-1@gated-at.bofh.it> <qQOgh-6eV-1@gated-at.bofh.it>
Organization Intel Corporation

Show all headers | View raw

> 
> If kernel_power_off() is called then the system should power off. No ifs and 
> whens.

Even if it doesn't the watchdog should kill it. 

That is broken on some platforms on the watchdog side as the
watchdog shuts down during our power off callbacks - because the system
firmware is too stupid to reset the watchdog as it powers back up (so
keeps rebooting).

If you watchdog and firmware function properly you shouldn't even have to
care if you crash during the kernel power off.

Alan

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH v2] reboot: Backup orderly_poweroff  Keerthy <j-keerthy@ti.com> - 2016-01-13 13:40 +0100
  Re: [PATCH v2] reboot: Backup orderly_poweroff Ingo Molnar <mingo@kernel.org> - 2016-01-14 10:10 +0100
    Re: [PATCH v2] reboot: Backup orderly_poweroff Keerthy <a0393675@ti.com> - 2016-01-14 10:30 +0100
      Re: [PATCH v2] reboot: Backup orderly_poweroff Ingo Molnar <mingo@kernel.org> - 2016-01-14 11:10 +0100
        Re: [PATCH v2] reboot: Backup orderly_poweroff Keerthy <a0393675@ti.com> - 2016-01-14 11:50 +0100
          Re: [PATCH v2] reboot: Backup orderly_poweroff Ingo Molnar <mingo@kernel.org> - 2016-01-14 12:30 +0100
            Re: [PATCH v2] reboot: Backup orderly_poweroff One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-14 14:30 +0100
            Re: [PATCH v2] reboot: Backup orderly_poweroff Russell King - ARM Linux <linux@arm.linux.org.uk> - 2016-01-14 15:30 +0100

csiph-web