On Tuesday, July 26, 2016 09:39:05 AM Josh Poimboeuf wrote: > On Tue, Jul 26, 2016 at 01:32:28PM +0200, Rafael J. Wysocki wrote: > > Hi, > > > > The following commit: > > > > commit 13523309495cdbd57a0d344c0d5d574987af007f > > Author: Josh Poimboeuf <jpoim...@redhat.com> > > Date: Thu Jan 21 16:49:21 2016 -0600 > > > > x86/asm/acpi: Create a stack frame in do_suspend_lowlevel() > > > > do_suspend_lowlevel() is a callable non-leaf function which doesn't > > honor CONFIG_FRAME_POINTER, which can result in bad stack traces. > > > > Create a stack frame for it when CONFIG_FRAME_POINTER is enabled. > > > > is reported to cause a resume-from-hibernation regression due to an attempt > > to execute an NX page (we've seen quite a bit of that recently). > > > > I'm asking the reporter to try 4.7, but if the problem is still there, we'll > > need to revert the above I'm afraid.
So the bug is still there in 4.7 and it goes away after reverting the above commit. I guess I'll send a revert then. > Hi Rafael, > > Is the oops output available somewhere? Not yet, but I've just ask the reporter to attach it to the $subject BZ entry. In any case, this is nasty stuff and the reason why we made that change was relatively weak IMO. Thanks, Rafael
