[  426.740246] BUG: spinlock lockup suspected on CPU#1, stress/3287
[  426.740909]  lock: 0xffffff80093019e0, .magic: dead4ead, .owner: stress/3283, .owner_cpu: 2
[  426.741788] CPU: 1 PID: 3287 Comm: stress Not tainted 4.4.132-1072-rockchip-ayufan-ga1d27dba5a2e #1
[  426.742735] Hardware name: Pine64 Rock64 (DT)
[  426.743196] Call trace:
[  426.743466] [<ffffff80080888d8>] dump_backtrace+0x0/0x220
[  426.744039] [<ffffff8008088b1c>] show_stack+0x24/0x30
[  426.744577] [<ffffff800855cd6c>] dump_stack+0x98/0xc0
[  426.745113] [<ffffff80081042ac>] spin_dump+0x84/0xa4
[  426.745639] [<ffffff8008104448>] do_raw_spin_lock+0xdc/0x164
[  426.746240] [<ffffff8008c16468>] _raw_spin_lock+0x20/0x2c
[  426.746813] [<ffffff8008192898>] free_pcppages_bulk+0x3c/0x37c
[  426.747431] [<ffffff8008194888>] free_hot_cold_page+0x120/0x158
[  426.748056] [<ffffff800819498c>] free_hot_cold_page_list+0xcc/0xdc
[  426.748710] [<ffffff800819bbe8>] release_pages+0x78/0x23c
[  426.749283] [<ffffff80081c72f0>] free_pages_and_swap_cache+0x40/0x8c
[  426.749954] [<ffffff80081b3338>] tlb_flush_mmu_free+0x4c/0x58
[  426.750561] [<ffffff80081b42c0>] tlb_flush_mmu+0x28/0x34
[  426.751122] [<ffffff80081b42ec>] tlb_finish_mmu+0x20/0x4c
[  426.751693] [<ffffff80081b9bbc>] unmap_region+0xbc/0xe8
[  426.752246] [<ffffff80081baff8>] do_munmap+0x1cc/0x2ac
[  426.752790] [<ffffff80081bb11c>] vm_munmap+0x44/0x64
[  426.753316] [<ffffff80081bbb00>] SyS_munmap+0x30/0x40
[  426.753852] [<ffffff8008082f30>] el0_svc_naked+0x24/0x28
[  426.794238] BUG: spinlock lockup suspected on CPU#3, tmux: server/955
[  426.794923]  lock: 0xffffff80093019e0, .magic: dead4ead, .owner: stress/3283, .owner_cpu: 2
[  426.795801] CPU: 3 PID: 955 Comm: tmux: server Not tainted 4.4.132-1072-rockchip-ayufan-ga1d27dba5a2e #1
[  426.796793] Hardware name: Pine64 Rock64 (DT)
[  426.797253] Call trace:
[  426.797520] [<ffffff80080888d8>] dump_backtrace+0x0/0x220
[  426.798092] [<ffffff8008088b1c>] show_stack+0x24/0x30
[  426.798626] [<ffffff800855cd6c>] dump_stack+0x98/0xc0
[  426.799162] [<ffffff80081042ac>] spin_dump+0x84/0xa4
[  426.799688] [<ffffff8008104448>] do_raw_spin_lock+0xdc/0x164
[  426.800287] [<ffffff8008c16408>] _raw_spin_lock_irqsave+0x28/0x38
[  426.800930] [<ffffff80081958ec>] get_page_from_freelist+0x4dc/0x76c
[  426.801590] [<ffffff8008195cf4>] __alloc_pages_nodemask+0x178/0x71c
[  426.802250] [<ffffff8008196630>] alloc_kmem_pages_node+0x38/0xa8
[  426.802885] [<ffffff80080b647c>] copy_process.isra.7+0x128/0x12cc
[  426.803528] [<ffffff80080b7768>] _do_fork+0x84/0x300
[  426.804053] [<ffffff80080b7b50>] SyS_clone+0x4c/0x60
[  426.804579] [<ffffff8008082f30>] el0_svc_naked+0x24/0x28
[  427.413900] BUG: spinlock lockup suspected on CPU#0, htop/2755
[  427.414520]  lock: 0xffffff80093019e0, .magic: dead4ead, .owner: stress/3283, .owner_cpu: 2
[  427.415397] CPU: 0 PID: 2755 Comm: htop Not tainted 4.4.132-1072-rockchip-ayufan-ga1d27dba5a2e #1
[  427.419539] Hardware name: Pine64 Rock64 (DT)
[  427.423291] Call trace:
[  427.426862] [<ffffff80080888d8>] dump_backtrace+0x0/0x220
[  427.430698] [<ffffff8008088b1c>] show_stack+0x24/0x30
[  427.434414] [<ffffff800855cd6c>] dump_stack+0x98/0xc0
[  427.438026] [<ffffff80081042ac>] spin_dump+0x84/0xa4
[  427.441544] [<ffffff8008104448>] do_raw_spin_lock+0xdc/0x164
[  427.445134] [<ffffff8008c16408>] _raw_spin_lock_irqsave+0x28/0x38
[  427.448760] [<ffffff80081958ec>] get_page_from_freelist+0x4dc/0x76c
[  427.452419] [<ffffff8008195cf4>] __alloc_pages_nodemask+0x178/0x71c
[  427.456103] [<ffffff80081d2bd8>] new_slab+0xd0/0x3b4
[  427.459674] [<ffffff80081d4698>] ___slab_alloc.constprop.27+0x1d4/0x2d4
[  427.463432] [<ffffff80081d4c98>] kmem_cache_alloc+0xc8/0x1ec
[  427.467106] [<ffffff80081e6348>] get_empty_filp+0x60/0x1e4
[  427.470759] [<ffffff80081f1944>] path_openat+0x38/0xd30
[  427.474394] [<ffffff80081f3aa0>] do_filp_open+0x48/0x94
[  427.478038] [<ffffff80081e3904>] do_sys_open+0x158/0x238
[  427.481670] [<ffffff80081e3a68>] SyS_openat+0x3c/0x4c
[  427.485257] [<ffffff8008082f30>] el0_svc_naked+0x24/0x28