Messages in this thread | | | Date | Tue, 15 May 2012 20:05:43 +0530 | From | "Srivatsa S. Bhat" <> | Subject | Re: [PATCH]: In kernel hibernation, suspend to both |
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On 05/15/2012 05:29 AM, Bojan Smojver wrote:
> On Mon, 2012-05-14 at 21:47 +1000, Bojan Smojver wrote: >> No. That hangs my box. >> >> This triggers a bug in workqueues code (essentially the same as the >> previous patch, except for sys_sync() not being done): > > Alan/Srivatsa, > > Coming back to the explanation of how this whole thing works, it would > seem that at the point of image writing all devices are fully functional > (not just some, as I mistakenly believed). However, the processes are > supposed to be already frozen, right? Calling suspend_prepare(), which > will essentially try to freeze the processes and kernel threads, seems > like the wrong thing to do. > > Did you guys mean that we should be calling > pm_notifier_call_chain(PM_SUSPEND_PREPARE) only here? >
Exactly! And also arrange for the corresponding PM_POST_SUSPEND notification to happen at the end of suspend-to-ram stage...
Regards, Srivatsa S. Bhat
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