------------[ cut here ]------------ kernel BUG at mm/vmscan.c:593! invalid opcode: 0000 [#1] SMP KASAN CPU: 1 PID: 1533 Comm: kswapd0 Not tainted 4.18.0-rc4-next-20180710+ #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:shrink_slab_memcg mm/vmscan.c:593 [inline] RIP: 0010:shrink_slab+0xb3e/0xdb0 mm/vmscan.c:672 Code: 8d a8 fd ff ff f0 48 0f b3 08 e8 3d ab da ff 48 8b 85 c0 fd ff ff c7 00 f8 f8 f8 f8 c6 40 04 f8 e9 5d fb ff ff e8 22 ab da ff <0f> 0b e8 1b ab da ff 48 8b 9d d8 fd ff ff 31 ff 48 89 de e8 3a ac RSP: 0018:ffff8801d3ebf4c0 EFLAGS: 00010293 RAX: ffff8801d3eb4100 RBX: ffff8801d3ebf710 RCX: ffffffff81a1cd42 RDX: 0000000000000000 RSI: ffffffff81a1d04e RDI: 0000000000000007 RBP: ffff8801d3ebf738 R08: ffff8801d3eb4100 R09: ffffed00398359a8 R10: ffffed00398359a8 R11: ffff8801cc1acd47 R12: dffffc0000000000 R13: ffff8801cc3392b0 R14: 0000000000000000 R15: ffff8801d3ebf550 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000702138 CR3: 00000001ce796000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: shrink_node+0x429/0x16a0 mm/vmscan.c:2736 kswapd_shrink_node mm/vmscan.c:3458 [inline] balance_pgdat+0x7ca/0x1010 mm/vmscan.c:3568 ------------[ cut here ]------------ kernel BUG at mm/vmscan.c:593! kswapd+0x82e/0x12f0 mm/vmscan.c:3790 kthread+0x345/0x410 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) invalid opcode: 0000 [#2] SMP KASAN ---[ end trace 16a9506829730890 ]--- CPU: 0 PID: 19463 Comm: syz-executor3 Tainted: G D 4.18.0-rc4-next-20180710+ #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:shrink_slab_memcg mm/vmscan.c:593 [inline] RIP: 0010:shrink_slab+0xb3e/0xdb0 mm/vmscan.c:672 RIP: 0010:shrink_slab_memcg mm/vmscan.c:593 [inline] RIP: 0010:shrink_slab+0xb3e/0xdb0 mm/vmscan.c:672 Code: Code: 8d a8 fd 8d ff ff f0 48 a8 0f b3 08 e8 fd 3d ab da ff ff 48 8b 85 c0 ff fd ff ff c7 f0 00 f8 f8 f8 48 f8 c6 40 04 f8 0f e9 5d fb ff b3 ff e8 22 ab 08 da ff <0f> 0b e8 e8 1b ab da ff 48 3d 8b 9d d8 fd ab ff ff 31 ff 48 da 89 de e8 3a ff ac RSP: 0018:ffff88016ac4ec60 EFLAGS: 00010246 48 RAX: 0000000000040000 RBX: ffff88016ac4eeb0 RCX: ffffc90004821000 RDX: 0000000000040000 RSI: ffffffff81a1d04e RDI: 0000000000000007 RBP: ffff88016ac4eed8 R08: ffff88019147a540 R09: ffffed00398359a8 8b R10: ffffed00398359a8 R11: ffff8801cc1acd47 R12: dffffc0000000000 R13: ffff8801cc3392b0 R14: 0000000000000000 R15: ffff88016ac4ecf0 85 FS: 00007f1140fe5700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 c0 CR2: 00007ffec03aa670 CR3: 00000001ce796000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 fd DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ff ff c7 shrink_node+0x429/0x16a0 mm/vmscan.c:2736 00 f8 f8 f8 f8 shrink_zones mm/vmscan.c:2965 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3027 c6 40 04 try_to_free_pages+0x4b2/0xb80 mm/vmscan.c:3242 f8 e9 5d fb ff __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x953/0x2d00 mm/page_alloc.c:4191 ff e8 22 ab da ff <0f> 0b e8 1b ab da __alloc_pages_nodemask+0xa7c/0xdb0 mm/page_alloc.c:4390 ff 48 8b alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 9d alloc_pages include/linux/gfp.h:492 [inline] __vmalloc_area_node mm/vmalloc.c:1686 [inline] __vmalloc_node_range+0x498/0x760 mm/vmalloc.c:1746 __vmalloc_node mm/vmalloc.c:1791 [inline] __vmalloc+0x45/0x50 mm/vmalloc.c:1797 d8 copy_module_from_user kernel/module.c:2868 [inline] __do_sys_init_module+0x1e2/0x370 kernel/module.c:3835 fd ff __se_sys_init_module kernel/module.c:3822 [inline] __x64_sys_init_module+0x6e/0xb0 kernel/module.c:3822 ff do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 31 ff 48 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455e29 89 Code: 1d ba de fb ff c3 66 e8 2e 0f 1f 84 00 00 3a 00 00 00 66 90 ac 48 89 f8 48 89 f7 48 89 d6 RSP: 0018:ffff8801d3ebf4c0 EFLAGS: 00010293 48 89 ca 4d 89 c2 4d 89 c8 RAX: ffff8801d3eb4100 RBX: ffff8801d3ebf710 RCX: ffffffff81a1cd42 4c 8b 4c 24 08 RDX: 0000000000000000 RSI: ffffffff81a1d04e RDI: 0000000000000007 0f 05 <48> 3d 01 RBP: ffff8801d3ebf738 R08: ffff8801d3eb4100 R09: ffffed00398359a8 f0 ff ff 0f 83 R10: ffffed00398359a8 R11: ffff8801cc1acd47 R12: dffffc0000000000 eb b9 fb ff c3 R13: ffff8801cc3392b0 R14: 0000000000000000 R15: ffff8801d3ebf550 66 2e 0f 1f 84 00 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 00 00 00 RSP: 002b:00007f1140fe4c68 EFLAGS: 00000246 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 ORIG_RAX: 00000000000000af RAX: ffffffffffffffda RBX: 00007f1140fe56d4 RCX: 0000000000455e29 RDX: 0000000020000080 RSI: 00000000fffffef3 RDI: 0000000020000100 CR2: 0000000000702138 CR3: 00000001ce796000 CR4: 00000000001406e0 RBP: 000000000072c140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004bbfcd R14: 00000000004cac70 R15: 0000000000000004 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Modules linked in: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Dumping ftrace buffer: (ftrace buffer empty)