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A: http://five.sentenc.es On Fri, 8 Jan 2021, at 13:34, Corey Costello wrote: > Get me off this fucking list ffs. > > > > > On Jan 7, 2021, at 2:06 PM, Jeffrey Walton wrote: > > > > On Thu, Jan 7, 2021 at 2:03 PM Jason A. Donenfeld wrote: > >> > >> On Thu, Jan 7, 2021 at 1:22 PM Dmitry Vyukov wrote: > >>> > >>> On Mon, Dec 21, 2020 at 12:23 PM Jason A. Donenfeld wrote: > >>>> > >>>> ... > >>> > >>> These UBSAN checks were just enabled recently. > >>> It's indeed super easy to trigger: 133083 VMs were crashed on this already: > >>> https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fsyzkaller.appspot.com%2fbug%3fextid%3d8f90d005ab2d22342b6d&c=E,1,RVpgZsRUCGs2jKlumiMAMnpeOF4QdiW5h8GDIsBJPz-orFNwvwCXnceC9n5Bhr1h-G2EsU0tlC7N4QUpHuF6tIMI7tTnBoRjAo5tT-Bk9-Fhe8CppuOL4mqdkA,,&typo=1 > >>> 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://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.phoronix.com%2fscan.php%3fpage%3dnews_item%26px%3dLinux-Kernel-Clang-LTO-Patches&c=E,1,7u3-jWadklYo8ai_XrPNvjnu46LLAyg0hqsGIaMPaoQ5UxtcNM84jrHUgSg4VciXKk9XVpwgyBwD85LbbW5_j195jSH6RrAej45I1kr_XfQ,&typo=1 > > > > Jeff > >