On 12/20/2013 04:31 PM, Sebastian Andrzej Siewior wrote: > 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 then this logo memory is no longer valid.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. >> >> 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 No I see where you are going with this. My description of the problem is wrong. The problem is nothing to do with the driver being a module. If nobody objects this or suggests a different solution then I'm going to provide a patch with a proper description. 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
