On Thu, 12 Sep 2013, Daniel Vetter wrote: > On Thu, Sep 12, 2013 at 10:20 PM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > >> I think for ttm drivers it's just execbuf being exploitable. But on > >> drm/i915 we've > >> had the same issue with the pwrite/pread ioctls, so a simple > >> glBufferData(glMap) kind of recursion from gl clients blew the kernel > >> to pieces ... > > > > And the only answer you folks came up with is set_need_resched() and > > yield()? Oh well.... > > The yield was for a different lifelock, and that one is also fixed by > now. The fault handler deadlock was fixed in the usual "drop locks and > jump into slowpath" fasion, at least in drm/i915. So we can remove that whole yield/set_need_resched() mess completely ? Thanks, tglx _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
