======================================
| [ 3919.222961][T19926] dropreason: entered promiscuous mode
| [ 3927.074951][T19977] c0: entered promiscuous mode
| [ 3934.557193][T20024] s0: entered promiscuous mode
| [ 4178.346470][   T58] kswapd0: page allocation failure: order:2, mode:0x40c40(GFP_NOFS|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0
[ 4178.347889][   T58] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 4178.348275][   T58] Call Trace:
[ 4178.348409][   T58]  <TASK>
[ 4178.348505][ T58] dump_stack_lvl (lib/dump_stack.c:123) 
[ 4178.348682][ T58] warn_alloc (mm/page_alloc.c:3532) 
[ 4178.348812][ T58] ? __pfx_warn_alloc (mm/page_alloc.c:3511) 
[ 4178.349002][ T58] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4465) 
[ 4178.349210][ T58] ? get_page_from_freelist (mm/page_alloc.c:3215 mm/page_alloc.c:3410) 
[ 4178.349373][ T58] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4187) 
[ 4178.349589][ T58] __alloc_pages_noprof (mm/page_alloc.c:4746) 
[ 4178.349757][ T58] ? __pfx___alloc_pages_noprof (mm/page_alloc.c:4699) 
[ 4178.349920][ T58] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3794 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 4178.350204][ T58] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 4178.350376][ T58] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 4178.350538][ T58] ? 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:228) 
[ 4178.350704][ T58] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 4178.350926][ T58] alloc_pages_mpol_noprof (mm/mempolicy.c:2267) 
[ 4178.351092][ T58] ? __pfx_alloc_pages_mpol_noprof (mm/mempolicy.c:2223) 
[ 4178.351309][ T58] allocate_slab (mm/slub.c:2412 mm/slub.c:2586) 
[ 4178.351477][ T58] ___slab_alloc (mm/slub.c:3818 (discriminator 3)) 
[ 4178.351744][ T58] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 4178.351908][ T58] ? p9_fcall_init (net/9p/client.c:233) 
[ 4178.352081][ T58] ? usage_skip (kernel/locking/lockdep.c:2314) 
[ 4178.352254][ T58] ? p9_fcall_init (net/9p/client.c:233) 
[ 4178.352418][ T58] ? __kmalloc_noprof (mm/slub.c:3908 mm/slub.c:3961 mm/slub.c:4122 mm/slub.c:4263 mm/slub.c:4276) 
[ 4178.352579][ T58] __kmalloc_noprof (mm/slub.c:3908 mm/slub.c:3961 mm/slub.c:4122 mm/slub.c:4263 mm/slub.c:4276) 
[ 4178.352745][ T58] p9_fcall_init (net/9p/client.c:233) 
[ 4178.352912][ T58] p9_tag_alloc (net/9p/client.c:298) 
[ 4178.353078][ T58] ? __pfx_p9_tag_alloc (net/9p/client.c:280) 
[ 4178.353243][ T58] ? __pfx_i_callback (fs/inode.c:251) 
[ 4178.353406][ T58] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 4178.353571][ T58] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 4178.353742][ T58] p9_client_prepare_req (net/9p/client.c:644) 
[ 4178.354004][ T58] ? __dentry_kill (fs/dcache.c:618) 
[ 4178.354165][ T58] ? shrink_dentry_list (fs/dcache.c:1060 fs/dcache.c:1087) 
[ 4178.354328][ T58] ? __pfx_p9_client_prepare_req (net/9p/client.c:628) 
[ 4178.354533][ T58] ? shrink_slab (mm/shrinker.c:665) 
[ 4178.354814][ T58] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 4178.354977][ T58] ? 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:228) 
[ 4178.355143][ T58] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 4178.355271][ T58] p9_client_rpc (net/9p/client.c:691 (discriminator 4)) 
[ 4178.355438][ T58] ? __pfx_p9_client_rpc (net/9p/client.c:675) 
[ 4178.355605][ T58] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 4178.355776][ T58] ? v9fs_dentry_release (fs/9p/vfs_dentry.c:60) 
[ 4178.355944][ T58] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 4178.356111][ T58] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 4178.356372][ T58] ? 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) 
[ 4178.356540][ T58] p9_client_clunk (net/9p/client.c:1441 (discriminator 3)) 
[ 4178.356705][ T58] v9fs_dentry_release (fs/9p/vfs_dentry.c:60) 
[ 4178.356870][ T58] ? __pfx_v9fs_dentry_release (fs/9p/vfs_dentry.c:49) 
[ 4178.357131][ T58] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 4178.357294][ T58] ? iput_final (fs/inode.c:1877) 
[ 4178.357459][ T58] __dentry_kill (fs/dcache.c:620) 
[ 4178.357623][ T58] dput.part.0 (fs/dcache.c:857) 
[ 4178.357882][ T58] ovl_stack_put (fs/overlayfs/util.c:131 (discriminator 3)) 
[ 4178.358051][ T58] ovl_destroy_inode (fs/overlayfs/super.c:183) 
[ 4178.358214][ T58] destroy_inode (fs/inode.c:315) 
[ 4178.358377][ T58] evict (fs/inode.c:701 (discriminator 2)) 
[ 4178.358500][ T58] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 4178.358756][ T58] ? __pfx_evict (fs/inode.c:701) 
[ 4178.358916][ T58] ? _atomic_dec_and_lock (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1383 lib/dec_and_lock.c:29) 
[ 4178.359087][ T58] ? iput_final (fs/inode.c:1877) 
[ 4178.359249][ T58] ? 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) 
[ 4178.359514][ T58] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 4178.359675][ T58] ? iput_final (fs/inode.c:1877) 
[ 4178.359850][ T58] __dentry_kill (fs/dcache.c:618) 
[ 4178.360012][ T58] ? shrink_dentry_list (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/dcache.c:1059 fs/dcache.c:1087) 
[ 4178.360270][ T58] shrink_dentry_list (fs/dcache.c:1060 fs/dcache.c:1087) 
[ 4178.360434][ T58] ? list_lru_walk_one (mm/list_lru.c:286) 
[ 4178.360603][ T58] prune_dcache_sb (fs/dcache.c:1162) 
[ 4178.360772][ T58] ? __pfx_prune_dcache_sb (fs/dcache.c:1162) 
[ 4178.361038][ T58] super_cache_scan (fs/super.c:210) 
[ 4178.361214][ T58] do_shrink_slab (mm/shrinker.c:435 (discriminator 12)) 
[ 4178.361390][ T58] shrink_slab (mm/shrinker.c:665) 
[ 4178.361554][ T58] ? 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) 
[ 4178.361719][ T58] ? __pfx_shrink_slab (mm/shrinker.c:614) 
[ 4178.361993][ T58] shrink_node (mm/vmscan.c:319 mm/vmscan.c:5953) 
[ 4178.362157][ T58] ? 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:231 mm/page_alloc.c:3241) 
[ 4178.362331][ T58] balance_pgdat (mm/vmscan.c:6774 mm/vmscan.c:6957) 
[ 4178.362500][ T58] ? __pfx_balance_pgdat (mm/vmscan.c:6827) 
[ 4178.362774][ T58] ? __pfx_kswapd_try_to_sleep (mm/vmscan.c:7064) 
[ 4178.362938][ T58] ? 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) 
[ 4178.363115][ T58] kswapd (mm/vmscan.c:7228) 
[ 4178.363246][ T58] ? __pfx_kswapd (mm/vmscan.c:7160) 
[ 4178.363576][ T58] ? __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) 
[ 4178.363745][ T58] ? __pfx_kswapd (mm/vmscan.c:7160) 
[ 4178.363908][ T58] kthread (kernel/kthread.c:389) 
[ 4178.364031][ T58] ? __pfx_kthread (kernel/kthread.c:342) 
[ 4178.364195][ T58] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 4178.364454][ T58] ? __pfx_kthread (kernel/kthread.c:342) 


Finger prints:
warn_alloc:__alloc_pages_noprof:alloc_pages_mpol_noprof:allocate_slab:___slab_alloc