On Thu, Aug 15, 2019 at 10:27 PM Jason Gunthorpe <jgg@xxxxxxxx> wrote: > On Thu, Aug 15, 2019 at 10:16:43PM +0200, Daniel Vetter wrote: > > So if someone can explain to me how that works with lockdep I can of > > course implement it. But afaics that doesn't exist (I tried to explain > > that somewhere else already), and I'm no really looking forward to > > hacking also on lockdep for this little series. > > Hmm, kind of looks like it is done by calling preempt_disable() Yup. That was v1, then came the suggestion that disabling preemption is maybe not the best thing (the oom reaper could still run for a long time comparatively, if it's cleaning out gigabytes of process memory or what not, hence this dedicated debug infrastructure). > Probably the debug option is CONFIG_DEBUG_PREEMPT, not lockdep? CONFIG_DEBUG_ATOMIC_SLEEP. Like in my patch. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
