On Wed, 2017-12-20 at 12:00 +0100, Paul Menzel wrote: > Dear Luca, > > > Am 18.12.2017 um 19:30 schrieb Luca Coelho: > > On Wed, 2017-12-13 at 16:32 +0200, Luciano Coelho wrote: > > > On Wed, 2017-12-13 at 14:25 +0100, Paul Menzel wrote: > > > > 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 > > Thank you. The warning is gone now. Thank you. Thanks for testing! We are actually improving the fix a bit, because it seems that we should not have gotten INVALID_QUEUE there. We will have a two-fold fix (Sari, whom I CCed, is working on the other patch). > For the next time, it’d > be great to provide the output of `git format-patch -1`, which can > be > applied with `git am`. The output of `git show` is with my knowledge > hard to apply. Ah, sorry about that. I didn't want to send a full patch here so that it wouldn't get picked up by patchworks, so I just pastebinned it. -- Luca.
