flags: 0x8000000000040078(uptodate|dirty IPVS: set_ctl: invalid protocol: 29 172.20.20.170:20004 |lru|active|swapbacked) page dumped because: VM_BUG_ON_PAGE(!PageLocked(page)) ------------[ cut here ]------------ kernel BUG at mm/filemap.c:817! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 17666 Comm: syz-executor3 Not tainted 4.4.151-g37af2ff #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8800b7a60000 task.stack: ffff8801d2190000 RIP: 0010:[] [] unlock_page+0x115/0x150 mm/filemap.c:817 RSP: 0018:ffff8801d2197a40 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffffea0006afa700 RCX: ffffc90003669000 RDX: 000000000003b56c RSI: ffffffff81519469 RDI: ffff8800b7a608dc RBP: ffff8801d2197a60 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000364000 R14: ffff8801d2197d10 R15: ffffea0006afa700 FS: 00007f0ffa7b1700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7924ab1db8 CR3: 00000001c9f3b000 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffea0006afa700 0000000000000001 0000000000364000 ffff8801d2197d10 ffff8801d2197a80 ffffffff8143c4e6 0000000000001000 0000000000001000 ffff8801d2197c40 ffffffff814cc2ab ffff8800b955a100 0000000020000714 Call Trace: [] set_page_dirty_lock+0x46/0x60 mm/page-writeback.c:2583 [] process_vm_rw_pages mm/process_vm_access.c:50 [inline] [] process_vm_rw_single_vec mm/process_vm_access.c:111 [inline] [] process_vm_rw_core.isra.1+0x51b/0x990 mm/process_vm_access.c:210 [] process_vm_rw+0x213/0x230 mm/process_vm_access.c:277 [] SYSC_process_vm_writev mm/process_vm_access.c:299 [inline] [] SyS_process_vm_writev+0x47/0x60 mm/process_vm_access.c:294 [] entry_SYSCALL_64_fastpath+0x22/0x9e Code: e8 48 8d 04 c0 49 8d 3c c6 e8 b8 bc df ff 5b 41 5c 41 5d 41 5e 5d c3 e8 7a 31 f3 ff 48 c7 c6 e0 bb a9 83 48 89 df e8 bb ee 06 00 <0f> 0b 48 89 df e8 91 d1 0d 00 e9 0a ff ff ff e8 87 d1 0d 00 e9 RIP [] unlock_page+0x115/0x150 mm/filemap.c:817 RSP ---[ end trace 671e17c95adb55ca ]---