Hello, syzbot found the following issue on: HEAD commit: 80d47f5de5e3 mm: don't try to NUMA-migrate COW pages that .. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12a7324c700000 kernel config: https://syzkaller.appspot.com/x/.config?x=f6a069ed94a1ed1d dashboard link: https://syzkaller.appspot.com/bug?extid=4688c50a9c8e68e7aaa1 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4688c50a9c8e68e7aaa1@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7975 at arch/x86/kvm/vmx/vmx.c:4906 handle_exception_nmi+0xfdc/0x1190 arch/x86/kvm/vmx/vmx.c:4906 Modules linked in: CPU: 0 PID: 7975 Comm: syz-executor.0 Not tainted 5.17.0-rc4-syzkaller-00055-g80d47f5de5e3 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:handle_exception_nmi+0xfdc/0x1190 arch/x86/kvm/vmx/vmx.c:4906 Code: 0f 84 c8 f3 ff ff e8 03 a8 56 00 48 89 ef c7 85 a4 0d 00 00 00 00 00 00 e8 51 1a ec ff 41 89 c4 e9 af f3 ff ff e8 e4 a7 56 00 <0f> 0b e9 69 f6 ff ff e8 d8 a7 56 00 be f5 ff ff ff bf 01 00 00 00 RSP: 0018:ffffc9000615fad8 EFLAGS: 00010216 RAX: 000000000001e2fd RBX: 0000000000000000 RCX: ffffc90002b71000 RDX: 0000000000040000 RSI: ffffffff81216b3c RDI: 0000000000000003 RBP: ffff888025308040 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff812161a4 R11: 0000000000000000 R12: fffffffffffffc4d R13: ffff888025308288 R14: 0000000000000000 R15: 0000000080000300 FS: 00007f47cabb1700(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000111c960 CR3: 000000001bb69000 CR4: 0000000000152ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __vmx_handle_exit arch/x86/kvm/vmx/vmx.c:6179 [inline] vmx_handle_exit+0x498/0x1950 arch/x86/kvm/vmx/vmx.c:6196 vcpu_enter_guest+0x29dd/0x4450 arch/x86/kvm/x86.c:10163 vcpu_run arch/x86/kvm/x86.c:10245 [inline] kvm_arch_vcpu_ioctl_run+0x521/0x21a0 arch/x86/kvm/x86.c:10451 kvm_vcpu_ioctl+0x570/0xf30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3908 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f47cc23c059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f47cabb1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f47cc34ef60 RCX: 00007f47cc23c059 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00007f47cc29608d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6f43c1df R14: 00007f47cabb1300 R15: 0000000000022000 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
