FYI, we noticed the below changes on https://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma mm-vmscan-node-lru-v2r16 commit ab543c4e6ce43e2225a598e2d96f5b0ec04dbd73 ("mm, vmscan: Move LRU lists to node") [ 7.976872] Loading compiled-in X.509 certificates [ 8.057169] Unregister pv shared memory for cpu 0 [ 8.057169] Unregister pv shared memory for cpu 0 [ 8.121704] BUG: unable to handle kernel [ 8.121704] BUG: unable to handle kernel paging requestpaging request at 00000000001d7661 at 00000000001d7661 [ 8.123958] IP: [ 8.123958] IP: [] cpu_vm_stats_fold+0xb7/0x110 [] cpu_vm_stats_fold+0xb7/0x110 [ 8.125952] PGD 0 [ 8.125952] PGD 0 [ 8.126619] Oops: 0000 [#1] [ 8.126619] Oops: 0000 [#1] PREEMPT PREEMPT SMP SMP DEBUG_PAGEALLOC DEBUG_PAGEALLOC [ 8.128395] Modules linked in: [ 8.128395] Modules linked in: [ 8.129442] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.4.0-08955-gab543c4 #1 [ 8.129442] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.4.0-08955-gab543c4 #1 [ 8.131672] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 8.131672] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 8.134471] task: ffff88000029c040 ti: ffff8800002a0000 task.ti: ffff8800002a0000 [ 8.134471] task: ffff88000029c040 ti: ffff8800002a0000 task.ti: ffff8800002a0000 [ 8.136803] RIP: 0010:[] [ 8.136803] RIP: 0010:[] [] cpu_vm_stats_fold+0xb7/0x110 [] cpu_vm_stats_fold+0xb7/0x110 [ 8.139518] RSP: 0000:ffff8800002a3bf8 EFLAGS: 00010282 [ 8.139518] RSP: 0000:ffff8800002a3bf8 EFLAGS: 00010282 [ 8.141221] RAX: ffffffff8de8e180 RBX: 00000000001d7660 RCX: 00000000001d7661 [ 8.141221] RAX: ffffffff8de8e180 RBX: 00000000001d7660 RCX: 00000000001d7661 [ 8.143435] RDX: ffffffff8de8f848 RSI: ffffffff8de8e808 RDI: ffffffff8de8ef00 [ 8.143435] RDX: ffffffff8de8f848 RSI: ffffffff8de8e808 RDI: ffffffff8de8ef00 [ 8.145694] RBP: ffff8800002a3c70 R08: ffffffff8de8f888 R09: 0000000000000002 [ 8.145694] RBP: ffff8800002a3c70 R08: ffffffff8de8f888 R09: 0000000000000002 [ 8.147921] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800002a3bfc [ 8.147921] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800002a3bfc [ 8.150179] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8de42f00 [ 8.150179] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8de42f00 [ 8.152400] FS: 0000000000000000(0000) GS:ffff880014400000(0000) knlGS:0000000000000000 [ 8.152400] FS: 0000000000000000(0000) GS:ffff880014400000(0000) knlGS:0000000000000000 [ 8.154919] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 8.154919] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 8.156709] CR2: 00000000001d7661 CR3: 000000000ddbb000 CR4: 00000000000006a0 [ 8.156709] CR2: 00000000001d7661 CR3: 000000000ddbb000 CR4: 00000000000006a0 [ 8.158977] Stack: [ 8.158977] Stack: [ 8.159619] fffffffe002a3c18 [ 8.159619] fffffffe002a3c18 00000000fffffffe 00000000fffffffe 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 8.164052] 0000000000000000 [ 8.164052] 0000000000000000 0000000000000002 0000000000000002 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 8.166493] 0000000000000000 [ 8.166493] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 8.168808] Call Trace: [ 8.168808] Call Trace: [ 8.169543] [] page_alloc_cpu_notify+0x2d/0x40 [ 8.169543] [] page_alloc_cpu_notify+0x2d/0x40 [ 8.171243] [] notifier_call_chain+0x92/0xc0 [ 8.171243] [] notifier_call_chain+0x92/0xc0 [ 8.173006] [] __raw_notifier_call_chain+0x9/0x10 [ 8.173006] [] __raw_notifier_call_chain+0x9/0x10 [ 8.176126] [] cpu_notify_nofail+0x1e/0x50 [ 8.176126] [] cpu_notify_nofail+0x1e/0x50 [ 8.177753] [] _cpu_down+0x245/0x330 [ 8.177753] [] _cpu_down+0x245/0x330 [ 8.179201] [] ? __call_rcu+0x460/0x460 [ 8.179201] [] ? __call_rcu+0x460/0x460 [ 8.182691] [] ? call_rcu_bh+0x20/0x20 [ 8.182691] [] ? call_rcu_bh+0x20/0x20 [ 8.184357] [] ? __rcu_read_unlock+0x120/0x120 [ 8.184357] [] ? __rcu_read_unlock+0x120/0x120 [ 8.186075] [] ? wait_for_common+0x103/0x1b0 [ 8.186075] [] ? wait_for_common+0x103/0x1b0 [ 8.187693] [] ? __rcu_read_unlock+0x120/0x120 [ 8.187693] [] ? __rcu_read_unlock+0x120/0x120 [ 8.189594] [] ? wait_for_common+0x103/0x1b0 [ 8.189594] [] ? wait_for_common+0x103/0x1b0 [ 8.191439] [] cpu_down+0x31/0x50 [ 8.191439] [] cpu_down+0x31/0x50 [ 8.192908] [] _debug_hotplug_cpu+0x78/0xb0 [ 8.192908] [] _debug_hotplug_cpu+0x78/0xb0 [ 8.194545] [] ? topology_init+0x39/0x39 [ 8.194545] [] ? topology_init+0x39/0x39 [ 8.196089] [] debug_hotplug_cpu+0xd/0x11 [ 8.196089] [] debug_hotplug_cpu+0xd/0x11 [ 8.197902] [] do_one_initcall+0x85/0x1e0 [ 8.197902] [] do_one_initcall+0x85/0x1e0 [ 8.199669] [] kernel_init_freeable+0x10e/0x18f [ 8.199669] [] kernel_init_freeable+0x10e/0x18f [ 8.201464] [] ? rest_init+0x140/0x140 [ 8.201464] [] ? rest_init+0x140/0x140 [ 8.202954] [] kernel_init+0x9/0xd0 [ 8.202954] [] kernel_init+0x9/0xd0 [ 8.204414] [] ret_from_fork+0x3f/0x70 [ 8.204414] [] ret_from_fork+0x3f/0x70 [ 8.206143] [] ? rest_init+0x140/0x140 [ 8.206143] [] ? rest_init+0x140/0x140 [ 8.207831] Code: [ 8.207831] Code: e5 e5 ff ff ff ff 48 48 85 85 c0 c0 75 75 ad ad e8 e8 77 77 e5 e5 ff ff ff ff 48 48 85 85 c0 c0 74 74 43 43 48 48 8b 8b 98 98 c0 c0 16 16 00 00 00 00 48 48 8d 8d 90 90 c8 c8 16 16 00 00 00 00 4c 4c 8d 8d 80 80 08 08 17 17 00 00 00 00 48 48 8d 8d 4b 4b 01 01 <48> <48> 0f 0f be be 31 31 40 40 84 84 f6 f6 74 74 07 07 c6 c6 01 01 00 00 f0 f0 48 48 01 01 32 32 48 48 83 83 c2 c2 08 08 48 48 [ 8.215580] RIP [ 8.215580] RIP [] cpu_vm_stats_fold+0xb7/0x110 [] cpu_vm_stats_fold+0xb7/0x110 [ 8.217401] RSP [ 8.217401] RSP [ 8.218367] CR2: 00000000001d7661 [ 8.218367] CR2: 00000000001d7661 [ 8.219299] ---[ end trace 1e78d589fe0fa47a ]--- [ 8.219299] ---[ end trace 1e78d589fe0fa47a ]--- Thanks, Kernel Test Robot