On Thu, 16 Nov 2017, Josh Poimboeuf wrote: > On Thu, Nov 16, 2017 at 01:55:39PM -0500, Joe Lawrence wrote: > > Hi Josh, > > > > I wanted to test Miroslav's "livepatch: Introduce signal and force sysfs > > attributes" series and merged his patches on top of this morning's Linus > > tree. When attempting to unload the livepatch-sample.ko, I noticed that > > it held an outstanding reference even after disabling the livepatch. > > This prevented me from unloading the livepatch module. > > Yeah, unfortunately the ORC unwinder doesn't quite support the > consistency model yet. It doesn't have the reliable stacktrace hooks > yet (CONFIG_HAVE_RELIABLE_STACKTRACE), so klp_have_reliable_stack() > return false and the sample module sets patch->immediate, so the patch > can't be unloaded. > > Not much is needed for that, I just haven't had a chance to do it yet. > Here's a summary of what I think is needed in case anybody wants to take > a shot at it: > > https://lkml.kernel.org/r/20171004140422.wikfoodyhoas2eae@treble JiriS, would you happen to have spare cycles to look into that? Thanks, Miroslav -- To unsubscribe from this list: send the line "unsubscribe live-patching" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
