9pnet_virtio: no channels available for device -24.20.20. ------------[ cut here ]------------ kernel BUG at mm/vmscan.c:593! invalid opcode: 0000 [#1] SMP KASAN CPU: 1 PID: 9947 Comm: syz-executor5 Not tainted 4.18.0-rc3-next-20180706+ #1 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 b8 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 b8 da ff <0f> 0b e8 1b b8 da ff 48 8b 9d d8 fd ff ff 31 ff 48 89 de e8 3a b9 RSP: 0018:ffff8801c5f6f0b8 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff8801c5f6f308 RCX: ffffc90001b6a000 RDX: 000000000000094a RSI: ffffffff81a1c23e RDI: 0000000000000007 RBP: ffff8801c5f6f330 R08: ffff8801b0010080 R09: ffffed003982ff60 R10: ffffed003982ff60 R11: ffff8801cc17fb07 R12: dffffc0000000000 R13: ffff8801cc32d1f0 R14: 0000000000000000 R15: ffff8801c5f6f148 FS: 00007fd02767d700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 IPVS: ftp: loaded support on port[0] = 21 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000047ad20 CR3: 000000019b317000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: shrink_node+0x429/0x16a0 mm/vmscan.c:2736 shrink_zones mm/vmscan.c:2965 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3027 try_to_free_mem_cgroup_pages+0x49d/0xc90 mm/vmscan.c:3325 memory_high_write+0x283/0x310 mm/memcontrol.c:5597 cgroup_file_write+0x31f/0x840 kernel/cgroup/cgroup.c:3500 kernfs_fop_write+0x2ba/0x480 fs/kernfs/file.c:316 __vfs_write+0x117/0x9f0 fs/read_write.c:485 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455e29 Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd02767cc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd02767d6d4 RCX: 0000000000455e29 RDX: 0000000000000104 RSI: 0000000020000080 RDI: 0000000000000015 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004c2e77 R14: 00000000004d4c60 R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 4b032ec147bbc56a ]--- 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 b8 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 b8 da ff <0f> 0b e8 1b b8 da ff 48 8b 9d d8 fd ff ff 31 ff 48 89 de e8 3a b9 RSP: 0018:ffff8801c5f6f0b8 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff8801c5f6f308 RCX: ffffc90001b6a000 RDX: 000000000000094a RSI: ffffffff81a1c23e RDI: 0000000000000007 RBP: ffff8801c5f6f330 R08: ffff8801b0010080 R09: ffffed003982ff60 R10: ffffed003982ff60 R11: ffff8801cc17fb07 R12: dffffc0000000000 R13: ffff8801cc32d1f0 R14: 0000000000000000 R15: ffff8801c5f6f148 FS: 00007fd02767d700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000047ad20 CR3: 000000019b317000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400