On 12/20/2013 04:27 PM, Geert Uytterhoeven wrote: > On Fri, Dec 20, 2013 at 3:24 PM, Sebastian Andrzej Siewior > <bigeasy@xxxxxxxxxxxxx> wrote: >> If the primary GPU driver has been loaded _after_ system as a module >> then this logo memory is no longer valid. >> Managed to crash the system by booting a box without a GPU and then >> hotpluggin => BOOM. > > Which GPU driver is this? i915. > > drivers/video/fbmem.c:fb_prepare_logo() has protection against this: > > if (info->flags & FBINFO_MISC_TILEBLITTING || > info->flags & FBINFO_MODULE) > return 0; but gpu driver is built-in. I just add PCI device at run-time. The same thing should happen if you go to sysfs and remove the PCI device and then do echo 1 > /sys/bus/pci/rescan Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
