On Wed, 2017-12-13 at 16:32 +0200, Luciano Coelho wrote: > On Wed, 2017-12-13 at 14:25 +0100, Paul Menzel wrote: > > Dear Linux folks, > > > > > > I enabled the undefined behavior sanitizer, and built Linus’ > > master > > branch under Ubuntu 17.10 with gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0. > > > > ``` > > $ grep UBSAN /boot/config-4.15.0-rc3+ > > CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y > > # CONFIG_ARCH_WANTS_UBSAN_NO_NULL is not set > > CONFIG_UBSAN=y > > CONFIG_UBSAN_SANITIZE_ALL=y > > # CONFIG_UBSAN_ALIGNMENT is not set > > CONFIG_UBSAN_NULL=y > > ``` > > > > Starting the system the messages below are printed. > > > > Starting the system and using the wireless device shows the > > messages > > below. > > Thanks for reporting! This shouldn't cause any problems, but I'll fix > it by checking that the mac80211_queue is not INVALID_QUEUE (255) > which seems to be the trigger for this warning. Can you try the following patch to see if the problem goes away? http://pastebin.coelho.fi/7b624f474846da52.txt Thanks! -- Cheers, Luca.
