======================================
| [ 3640.421918][T19962] dropreason: entered promiscuous mode
| [ 3648.072046][T20013] c0: entered promiscuous mode
| [ 3655.474549][T20059] s0: entered promiscuous mode
| [ 3831.821632][   T59] kswapd0: page allocation failure: order:2, mode:0x40c40(GFP_NOFS|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0
[ 3831.822825][   T59] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 3831.823182][   T59] Call Trace:
[ 3831.823326][   T59]  <TASK>
[ 3831.823416][ T59] dump_stack_lvl (lib/dump_stack.c:122) 
[ 3831.823588][ T59] warn_alloc (mm/page_alloc.c:3523) 
[ 3831.823715][ T59] ? __pfx_warn_alloc (mm/page_alloc.c:3502) 
[ 3831.823903][ T59] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4445) 
[ 3831.824111][ T59] ? get_page_from_freelist (mm/page_alloc.c:3202 mm/page_alloc.c:3397) 
[ 3831.824274][ T59] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4173) 
[ 3831.824483][ T59] __alloc_pages_noprof (mm/page_alloc.c:4715) 
[ 3831.824650][ T59] ? __pfx___alloc_pages_noprof (mm/page_alloc.c:4668) 
[ 3831.824809][ T59] ? __kmalloc_noprof (mm/slub.c:4163 mm/slub.c:4174) 
[ 3831.824967][ T59] ? p9_fcall_init (net/9p/client.c:233) 
[ 3831.825125][ T59] ? p9_tag_alloc (net/9p/client.c:298) 
[ 3831.825283][ T59] ? p9_client_rpc (net/9p/client.c:691 (discriminator 4)) 
[ 3831.825446][ T59] ? v9fs_dentry_release (fs/9p/vfs_dentry.c:60) 
[ 3831.825612][ T59] ? evict (fs/inode.c:682 (discriminator 2)) 
[ 3831.825742][ T59] ? __dentry_kill (fs/dcache.c:618) 
[ 3831.825899][ T59] ? shrink_dentry_list (fs/dcache.c:1060 fs/dcache.c:1087) 
[ 3831.826058][ T59] ? prune_dcache_sb (fs/dcache.c:1162) 
[ 3831.826216][ T59] ? super_cache_scan (fs/super.c:210) 
[ 3831.826376][ T59] ? do_shrink_slab (mm/shrinker.c:435 (discriminator 12)) 
[ 3831.826533][ T59] ? shrink_slab (mm/shrinker.c:665) 
[ 3831.826693][ T59] ? shrink_node (mm/vmscan.c:319 mm/vmscan.c:5930) 
[ 3831.826858][ T59] alloc_slab_page (./include/linux/gfp.h:269 ./include/linux/gfp.h:296 mm/slub.c:2325) 
[ 3831.827020][ T59] allocate_slab (mm/slub.c:2496) 
[ 3831.827187][ T59] ___slab_alloc (mm/slub.c:3727 (discriminator 3)) 
[ 3831.827345][ T59] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 3831.827469][ T59] ? p9_fcall_init (net/9p/client.c:233) 
[ 3831.827643][ T59] ? p9_fcall_init (net/9p/client.c:233) 
[ 3831.827802][ T59] ? __kmalloc_noprof (mm/slub.c:3817 mm/slub.c:3870 mm/slub.c:4029 mm/slub.c:4161 mm/slub.c:4174) 
[ 3831.827964][ T59] __kmalloc_noprof (mm/slub.c:3817 mm/slub.c:3870 mm/slub.c:4029 mm/slub.c:4161 mm/slub.c:4174) 
[ 3831.828133][ T59] p9_fcall_init (net/9p/client.c:233) 
[ 3831.828355][ T59] p9_tag_alloc (net/9p/client.c:300) 
[ 3831.828519][ T59] ? __pfx_p9_tag_alloc (net/9p/client.c:280) 
[ 3831.828687][ T59] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 3831.828852][ T59] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 3831.829015][ T59] p9_client_prepare_req (net/9p/client.c:644) 
[ 3831.829176][ T59] ? __dentry_kill (fs/dcache.c:618) 
[ 3831.829335][ T59] ? shrink_dentry_list (fs/dcache.c:1060 fs/dcache.c:1087) 
[ 3831.829494][ T59] ? __pfx_p9_client_prepare_req (net/9p/client.c:628) 
[ 3831.829690][ T59] ? shrink_slab (mm/shrinker.c:665) 
[ 3831.829851][ T59] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 3831.830010][ T59] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) 
[ 3831.830170][ T59] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 3831.830298][ T59] p9_client_rpc (net/9p/client.c:691 (discriminator 4)) 
[ 3831.830465][ T59] ? __pfx_p9_client_rpc (net/9p/client.c:675) 
[ 3831.830633][ T59] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 3831.830797][ T59] ? v9fs_dentry_release (fs/9p/vfs_dentry.c:60) 
[ 3831.830959][ T59] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 3831.831120][ T59] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5724) 
[ 3831.831281][ T59] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 3831.831446][ T59] p9_client_clunk (net/9p/client.c:1441 (discriminator 3)) 
[ 3831.831613][ T59] v9fs_dentry_release (fs/9p/vfs_dentry.c:60) 
[ 3831.831777][ T59] ? __pfx_v9fs_dentry_release (fs/9p/vfs_dentry.c:49) 
[ 3831.831945][ T59] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 3831.832108][ T59] ? iput_final (fs/inode.c:1838) 
[ 3831.832273][ T59] __dentry_kill (fs/dcache.c:620) 
[ 3831.832439][ T59] dput.part.0 (fs/dcache.c:857) 
[ 3831.832606][ T59] ovl_stack_put (fs/overlayfs/util.c:131 (discriminator 3)) 
[ 3831.832769][ T59] ovl_destroy_inode (fs/overlayfs/super.c:183) 
[ 3831.832928][ T59] destroy_inode (fs/inode.c:313) 
[ 3831.833089][ T59] evict (fs/inode.c:682 (discriminator 2)) 
[ 3831.833213][ T59] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 3831.833380][ T59] ? __pfx_evict (fs/inode.c:682) 
[ 3831.833537][ T59] ? _atomic_dec_and_lock (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1383 lib/dec_and_lock.c:29) 
[ 3831.833703][ T59] ? iput_final (fs/inode.c:1838) 
[ 3831.833865][ T59] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 3831.834030][ T59] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 3831.834187][ T59] ? iput_final (fs/inode.c:1838) 
[ 3831.834353][ T59] __dentry_kill (fs/dcache.c:618) 
[ 3831.834517][ T59] ? shrink_dentry_list (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 fs/dcache.c:1059 fs/dcache.c:1087) 
[ 3831.834683][ T59] shrink_dentry_list (fs/dcache.c:1060 fs/dcache.c:1087) 
[ 3831.834843][ T59] ? list_lru_walk_one (mm/list_lru.c:286) 
[ 3831.835009][ T59] prune_dcache_sb (fs/dcache.c:1162) 
[ 3831.835178][ T59] ? __pfx_prune_dcache_sb (fs/dcache.c:1162) 
[ 3831.835346][ T59] super_cache_scan (fs/super.c:210) 
[ 3831.835516][ T59] do_shrink_slab (mm/shrinker.c:435 (discriminator 12)) 
[ 3831.835687][ T59] shrink_slab (mm/shrinker.c:665) 
[ 3831.835849][ T59] ? shrink_slab (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 ./include/linux/refcount.h:142 ./include/linux/refcount.h:218 ./include/linux/refcount.h:236 ./include/linux/shrinker.h:141 mm/shrinker.c:657) 
[ 3831.836011][ T59] ? __pfx_shrink_slab (mm/shrinker.c:614) 
[ 3831.836183][ T59] shrink_node (mm/vmscan.c:319 mm/vmscan.c:5930) 
[ 3831.836341][ T59] ? zone_watermark_ok_safe (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 ./include/linux/vmstat.h:213 mm/page_alloc.c:3225) 
[ 3831.836516][ T59] balance_pgdat (mm/vmscan.c:6751 mm/vmscan.c:6934) 
[ 3831.836811][ T59] ? __pfx_balance_pgdat (mm/vmscan.c:6804) 
[ 3831.836983][ T59] ? __pfx_kswapd_try_to_sleep (mm/vmscan.c:7041) 
[ 3831.837141][ T59] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 3831.837312][ T59] kswapd (mm/vmscan.c:7205) 
[ 3831.837440][ T59] ? __pfx_kswapd (mm/vmscan.c:7137) 
[ 3831.837600][ T59] ? __kthread_parkme (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/kthread.c:280) 
[ 3831.837762][ T59] ? __pfx_kswapd (mm/vmscan.c:7137) 
[ 3831.837921][ T59] kthread (kernel/kthread.c:389) 
[ 3831.838047][ T59] ? __pfx_kthread (kernel/kthread.c:342) 
[ 3831.838213][ T59] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 3831.838373][ T59] ? __pfx_kthread (kernel/kthread.c:342) 


Finger prints:
warn_alloc:__alloc_pages_noprof:alloc_slab_page:allocate_slab:___slab_alloc