Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [linux-pm] better oopsing when frozen | Date | Fri, 29 Jul 2011 23:30:09 +0200 |
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On Friday, July 29, 2011, Oliver Neukum wrote: > Am Freitag, 29. Juli 2011, 23:09:44 schrieb Rafael J. Wysocki: > > On Friday, July 29, 2011, Oliver Neukum wrote: > > > Am Freitag, 29. Juli 2011, 22:27:54 schrieb Rafael J. Wysocki: > > > > However, there's another problem I didn't think of before. Namely, > > > > we cannot thaw tasks before resuming devices in case we've already > > > > suspended them, because that will defeat the very purpose of the > > > > freezing in the first place. > > > > > > That purpose is already defeated. The machine cannot be deader than dead. > > > > OK, so what exactly is the purpose of the thawing, then? > > We may be lucky enough to get the oops written out to disk. The oops may happen > in a driver rarely used and be late in the sequence.
OK, so is there any guarantee that we won't corrupt things this way?
Rafael
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