On Sat, Sep 19, 2020 at 01:32:14AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 92ab97ad Merge tag 'sh-for-5.9-part2' of git://git.libc.or.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1069669b900000 > kernel config: https://syzkaller.appspot.com/x/.config?x=cd992d74d6c7e62 > dashboard link: https://syzkaller.appspot.com/bug?extid=ce179bc99e64377c24bc > compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ > c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
All below is AFAICT: This compiler you're using is not some official release but some random commit before the v10 release: $ git show c2443155a0fb245c8f17f2c1c72b6ea391e86e81 Author: Hans Wennborg <h...@chromium.org> Date: Sat Nov 30 14:20:11 2019 +0100 Revert 651f07908a1 "[AArch64] Don't combine callee-save and local stack adjustment when optimizing for size" ... $ git describe c2443155a0fb245c8f17f2c1c72b6ea391e86e81 llvmorg-10-init-10900-gc2443155a0fb The v10 release is: $ git show llvmorg-10.0.0 tag llvmorg-10.0.0 Tagger: Hans Wennborg <h...@chromium.org> Date: Tue Mar 24 12:58:58 2020 +0100 Tag 10.0.0 and v10 has reached v10.0.1 in the meantime: $ git log --oneline c2443155a0fb245c8f17f2c1c72b6ea391e86e81~1..llvmorg-10.0.1 | wc -l 7051 so can you please update your compiler and see if you can still reproduce with 10.0.1 so that we don't waste time chasing a bug which has been likely already fixed in one of those >7K commits. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette