On Thu, Sep 12, 2013 at 10:20 PM, Thomas Gleixner <t...@linutronix.de> 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. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
