Linus Torvalds wrote: > > On Fri, 10 Apr 2009, Rafael J. Wysocki wrote: >> I've just verified that the resume-after-hibernation issue goes away after >> reverting commit 9710794383ee5008d67f1a6613a4717bf6de47bc >> (async: remove the temporary (2.6.29) "async is off by default" code) , so it >> is async-related. > > Arjan? Clearly all the necessary fixes weren't found.. > > There _is_ a module loading problem wrt initmem - I think you found that > and we added a hack for it for the ACPI battery driver. I wonder if we're > hitting a similar issue now with module discovery: modules that use > "async_schedule()" to do their discovery asynchronously are now not > necessarily fully "done" when the module is loaded. this is both a "yes and no" kind of thing. It already happened for many cases (USB, SCSI (and thus libata) etc) but now it can happen for more new cases. > And so, anything that expected the devices to be available after module > load (like they used to) would be screwed. > > IOW, maybe something like the totally untested patch appended here (that > should also allow us to make the ACPI battery code to go back to using > __init). > this will work. It's a tad unfortunate that we basically end up synchronizing at load time; maybe some time in the future we can make this opt-in/out ;-( _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
