======================================
| [ 6300.604486][ T8242] dropreason: entered promiscuous mode
| [ 6307.768010][ T8293] c0: entered promiscuous mode
| [ 6314.636997][ T8340] s0: entered promiscuous mode
| [ 6493.798901][ T8501] perf: page allocation failure: order:6, mode:0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null),cpuset=/,mems_allowed=0
[ 6493.800444][ T8501] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 6493.800819][ T8501] Call Trace:
[ 6493.800936][ T8501]  <TASK>
[ 6493.801019][ T8501] dump_stack_lvl (lib/dump_stack.c:117) 
[ 6493.801184][ T8501] warn_alloc (mm/page_alloc.c:3504) 
[ 6493.801305][ T8501] ? __pfx_warn_alloc (mm/page_alloc.c:3483) 
[ 6493.801464][ T8501] ? __alloc_pages_direct_compact (mm/page_alloc.c:3678) 
[ 6493.801652][ T8501] ? __pfx___alloc_pages_direct_compact (mm/page_alloc.c:3626) 
[ 6493.801845][ T8501] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4426) 
[ 6493.802042][ T8501] ? get_page_from_freelist (mm/page_alloc.c:3181 mm/page_alloc.c:3374) 
[ 6493.802190][ T8501] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4154) 
[ 6493.802385][ T8501] __alloc_pages_noprof (mm/page_alloc.c:4696) 
[ 6493.802809][ T8501] ? __pfx___alloc_pages_noprof (mm/page_alloc.c:4649) 
[ 6493.802960][ T8501] ? 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) 
[ 6493.803112][ T8501] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) 
[ 6493.803270][ T8501] ? 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) 
[ 6493.803423][ T8501] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) 
[ 6493.803579][ T8501] ? v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) 
[ 6493.803728][ T8501] __kmalloc_large_node (./include/linux/gfp.h:269 ./include/linux/gfp.h:296 mm/slub.c:4068) 
[ 6493.803881][ T8501] ? v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) 
[ 6493.804028][ T8501] __kmalloc_noprof (./arch/x86/include/asm/bitops.h:417 ./include/asm-generic/getorder.h:46 mm/slub.c:4113 mm/slub.c:4136) 
[ 6493.804177][ T8501] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 6493.804288][ T8501] ? 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) 
[ 6493.804438][ T8501] v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) 
[ 6493.804589][ T8501] v9fs_dir_readdir_dotl (fs/9p/vfs_dir.c:160) 
[ 6493.804746][ T8501] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 6493.804922][ T8501] ? __pfx_v9fs_dir_readdir_dotl (fs/9p/vfs_dir.c:148) 
[ 6493.805110][ T8501] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 6493.805261][ T8501] ? iterate_dir (fs/readdir.c:103) 
[ 6493.805420][ T8501] ? rwsem_read_trylock (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2629 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3224 kernel/locking/rwsem.c:176 kernel/locking/rwsem.c:181 kernel/locking/rwsem.c:249 kernel/locking/rwsem.c:241) 
[ 6493.805574][ T8501] ? __pfx_rwsem_read_trylock (kernel/locking/rwsem.c:242) 
[ 6493.805726][ T8501] ? iterate_dir (fs/readdir.c:103) 
[ 6493.805879][ T8501] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 6493.806039][ T8501] ? iterate_dir (fs/readdir.c:103) 
[ 6493.806193][ T8501] ? down_read_killable (kernel/locking/rwsem.c:1249 kernel/locking/rwsem.c:1273 kernel/locking/rwsem.c:1551) 
[ 6493.806341][ T8501] ? iterate_dir (fs/readdir.c:103) 
[ 6493.806491][ T8501] ? __pfx_down_read_killable (kernel/locking/rwsem.c:1547) 
[ 6493.806637][ T8501] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 6493.806786][ T8501] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 6493.806938][ T8501] iterate_dir (fs/readdir.c:110) 
[ 6493.807092][ T8501] ovl_iterate (fs/overlayfs/readdir.c:775) 
[ 6493.807245][ T8501] ? wrap_directory_iterator (fs/readdir.c:56) 
[ 6493.807392][ T8501] ? __pfx_ovl_iterate (fs/overlayfs/readdir.c:751) 
[ 6493.807545][ T8501] ? __pfx_ovl_iterate (fs/overlayfs/readdir.c:751) 
[ 6493.807694][ T8501] wrap_directory_iterator (fs/readdir.c:67) 
[ 6493.807843][ T8501] iterate_dir (fs/readdir.c:110) 
[ 6493.807997][ T8501] __x64_sys_getdents64 (fs/readdir.c:410 fs/readdir.c:394 fs/readdir.c:394) 
[ 6493.808144][ T8501] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 6493.808294][ T8501] ? __pfx___x64_sys_getdents64 (fs/readdir.c:394) 
[ 6493.808443][ T8501] ? __pfx_filldir64 (fs/readdir.c:352) 
[ 6493.808596][ T8501] ? do_user_addr_fault (./include/linux/rcupdate.h:814 ./include/linux/mm.h:708 arch/x86/mm/fault.c:1340) 
[ 6493.808755][ T8501] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 6493.808909][ T8501] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 6493.809091][ T8501] RIP: 0033:0x7f16c66f85b7
[ 6493.809247][ T8501] Code: 80 f8 ff 4c 89 e0 5b 5d 41 5c c3 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 19 48 0e 00 f7 d8 64 89 02 48
All code
========
   0:	80 f8 ff             	cmp    $0xff,%al
   3:	4c 89 e0             	mov    %r12,%rax
   6:	5b                   	pop    %rbx
   7:	5d                   	pop    %rbp
   8:	41 5c                	pop    %r12
   a:	c3                   	ret
   b:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  12:	00 
  13:	f3 0f 1e fa          	endbr64
  17:	b8 ff ff ff 7f       	mov    $0x7fffffff,%eax
  1c:	48 39 c2             	cmp    %rax,%rdx
  1f:	48 0f 47 d0          	cmova  %rax,%rdx
  23:	b8 d9 00 00 00       	mov    $0xd9,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 01                	ja     0x33
  32:	c3                   	ret
  33:	48 8b 15 19 48 0e 00 	mov    0xe4819(%rip),%rdx        # 0xe4853
  3a:	f7 d8                	neg    %eax
  3c:	64 89 02             	mov    %eax,%fs:(%rdx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 01                	ja     0x9
   8:	c3                   	ret
   9:	48 8b 15 19 48 0e 00 	mov    0xe4819(%rip),%rdx        # 0xe4829
  10:	f7 d8                	neg    %eax
  12:	64 89 02             	mov    %eax,%fs:(%rdx)
  15:	48                   	rex.W
[ 6493.809768][ T8501] RSP: 002b:00007fff490ab438 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
[ 6493.809998][ T8501] RAX: ffffffffffffffda RBX: 00007f16c60ff040 RCX: 00007f16c66f85b7
[ 6493.810221][ T8501] RDX: 0000000000020000 RSI: 00007f16c60ff040 RDI: 0000000000000006
[ 6493.810447][ T8501] RBP: 00007f16c60ff014 R08: 00007f16c60ff010 R09: 0000000000000000
[ 6493.810672][ T8501] R10: 0000000000000022 R11: 0000000000000293 R12: ffffffffffffff38


Finger prints:
warn_alloc:__alloc_pages_noprof:__kmalloc_large_node:__kmalloc_noprof:v9fs_dir_readdir_dotl