page:ffffea00004a0000 refcount:2 mapcount:1 mapping:ffff88809ffe8b21 index:0x20000 compound_mapcount: 1 anon flags: 0x1fffc0000090025(locked|uptodate|active|head|swapbacked) raw: 01fffc0000090025 dead000000000100 dead000000000122 ffff88809ffe8b21 raw: 0000000000020000 0000000000000000 00000002ffffffff ffff88809abda340 page dumped because: VM_BUG_ON_PAGE(PageActive(page)) page->mem_cgroup:ffff88809abda340 ------------[ cut here ]------------ kernel BUG at mm/vmscan.c:1156! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11870 Comm: syz-executor.0 Not tainted 5.3.0-rc2-next-20190729 #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:shrink_page_list+0x2872/0x5430 mm/vmscan.c:1156 Code: d9 ea ff ff e8 df 3c dd ff 4c 8d 6b ff e9 1c db ff ff e8 d1 3c dd ff 48 8b bd 10 ff ff ff 48 c7 c6 80 85 93 87 e8 fe 10 07 00 <0f> 0b e8 b7 3c dd ff be 08 00 00 00 4c 89 ef e8 0a f2 17 00 4c 89 RSP: 0018:ffff8880653df598 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000020 RCX: ffffc90005f65000 RDX: 0000000000040000 RSI: ffffffff819bfec7 RDI: ffffed100ca7be97 RBP: ffff8880653df730 R08: 0000000000000021 R09: ffffed1015d060d1 R10: ffffed1015d060d0 R11: ffff8880ae830687 R12: dffffc0000000000 R13: ffffea00004a0000 R14: 0000000000000000 R15: ffffea00004a0008 FS: 00007fe187502700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe4c3b00db8 CR3: 000000004696e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reclaim_pages+0x3b8/0x8f0 mm/vmscan.c:2202 madvise_cold_or_pageout_pte_range+0x18c4/0x2e20 mm/madvise.c:391 walk_pmd_range mm/pagewalk.c:51 [inline] walk_pud_range mm/pagewalk.c:109 [inline] walk_p4d_range mm/pagewalk.c:135 [inline] walk_pgd_range mm/pagewalk.c:161 [inline] __walk_page_range+0xd2a/0x1680 mm/pagewalk.c:254 walk_page_range+0x1a6/0x3e0 mm/pagewalk.c:335 madvise_pageout_page_range.isra.0+0xdd/0x120 mm/madvise.c:532 madvise_pageout+0x227/0x3a0 mm/madvise.c:568 madvise_vma mm/madvise.c:965 [inline] __do_sys_madvise mm/madvise.c:1145 [inline] __se_sys_madvise mm/madvise.c:1073 [inline] __x64_sys_madvise+0x719/0x1500 mm/madvise.c:1073 ? 0xffffffff81000000 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe187501c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829 RDX: 0000000000000015 RSI: 0000000000600003 RDI: 0000000020000000 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe1875026d4 R13: 00000000004c5c6d R14: 00000000004da4d8 R15: 00000000ffffffff Modules linked in: ---[ end trace 6a328191707e37d9 ]--- RIP: 0010:shrink_page_list+0x2872/0x5430 mm/vmscan.c:1156 Code: d9 ea ff ff e8 df 3c dd ff 4c 8d 6b ff e9 1c db ff ff e8 d1 3c dd ff 48 8b bd 10 ff ff ff 48 c7 c6 80 85 93 87 e8 fe 10 07 00 <0f> 0b e8 b7 3c dd ff be 08 00 00 00 4c 89 ef e8 0a f2 17 00 4c 89 RSP: 0018:ffff8880653df598 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000020 RCX: ffffc90005f65000 RDX: 0000000000040000 RSI: ffffffff819bfec7 RDI: ffffed100ca7be97 RBP: ffff8880653df730 R08: 0000000000000021 R09: ffffed1015d060d1 R10: ffffed1015d060d0 R11: ffff8880ae830687 R12: dffffc0000000000 R13: ffffea00004a0000 R14: 0000000000000000 R15: ffffea00004a0008 FS: 00007fe187502700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000075c000 CR3: 000000004696e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400