On Mon, Jul 08, 2024, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: f3a2439f20d9 Merge tag 'rproc-v6.3' of git://git.kernel.or.. > git tree: upstream > console+strace: https://syzkaller.appspot.com/x/log.txt?x=12e2d518c80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=81f5afa0c201c8de > dashboard link: https://syzkaller.appspot.com/bug?extid=545f1326f405db4e1c3e > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16b7be60c80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11a380a8c80000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/0719d575f3ac/disk-f3a2439f.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/4176aabb67b5/vmlinux-f3a2439f.xz > kernel image: https://storage.googleapis.com/syzbot-assets/2b0e3c0ab205/bzImage-f3a2439f.xz > > The issue was bisected to: > > commit 76e527509d37a15ff1714ddd003384f5f25fd3fc > Author: Sean Christopherson <seanjc@xxxxxxxxxx> > Date: Fri Jan 6 01:12:52 2023 +0000 > > KVM: x86: Skip redundant x2APIC logical mode optimized cluster setup > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=124fbe60c80000 > final oops: https://syzkaller.appspot.com/x/report.txt?x=114fbe60c80000 > console output: https://syzkaller.appspot.com/x/log.txt?x=164fbe60c80000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+545f1326f405db4e1c3e@xxxxxxxxxxxxxxxxxxxxxxxxx > Fixes: 76e527509d37 ("KVM: x86: Skip redundant x2APIC logical mode optimized cluster setup") Known bug, I see if my random thought from that thread actually fixes the issue. https://lkml.kernel.org/r/20240126161633.62529-1-haoyuwu254%40gmail.com
