On Thu, Jan 7, 2021 at 8:06 PM Jeffrey Walton <[email protected]> wrote: > > On Thu, Jan 7, 2021 at 2:03 PM Jason A. Donenfeld <[email protected]> wrote: > > > > On Thu, Jan 7, 2021 at 1:22 PM Dmitry Vyukov <[email protected]> wrote: > > > > > > On Mon, Dec 21, 2020 at 12:23 PM Jason A. Donenfeld <[email protected]> > > > wrote: > > > > > > > > ... > > > > > > These UBSAN checks were just enabled recently. > > > It's indeed super easy to trigger: 133083 VMs were crashed on this > > > already: > > > https://syzkaller.appspot.com/bug?extid=8f90d005ab2d22342b6d > > > So it's one of the top crashers by now. > > > > Ahh, makes sense. So it is easily reproducible after all. > > > > You're still of the opinion that it's a false positive, right? I > > shouldn't spend more cycles on this? > > You might consider making a test build with -fno-lto in case LTO is > mucking things up. > > Google Posts Patches So The Linux Kernel Can Be LTO-Optimized By > Clang, > https://www.phoronix.com/scan.php?page=news_item&px=Linux-Kernel-Clang-LTO-Patches
Hi Jeff, Are these patches upstream now? syzbot doesn't enable LTO intentionally, nor I see CONFIG_LTO in the provided config.
