======================================
| [ 3627.228469][T19994] dropreason: entered promiscuous mode
| [ 3634.780549][T20044] c0: entered promiscuous mode
| [ 3641.922091][T20091] s0: entered promiscuous mode
| [ 3835.159254][T20252] perf: page allocation failure: order:6, mode:0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null),cpuset=/,mems_allowed=0
[ 3835.161016][T20252] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 3835.161578][T20252] Call Trace:
[ 3835.161776][T20252]  <TASK>
[3835.161913][T20252] dump_stack_lvl (lib/dump_stack.c:122) 
[3835.162185][T20252] warn_alloc (mm/page_alloc.c:3521) 
[3835.162391][T20252] ? __pfx_warn_alloc (mm/page_alloc.c:3500) 
[3835.162712][T20252] ? __alloc_pages_direct_compact (mm/page_alloc.c:3695) 
[3835.163034][T20252] ? __pfx___alloc_pages_direct_compact (mm/page_alloc.c:3643) 
[3835.163369][T20252] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4443) 
[3835.163697][T20252] ? get_page_from_freelist (mm/page_alloc.c:3198 mm/page_alloc.c:3391) 
[3835.163952][T20252] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4171) 
[3835.164411][T20252] __alloc_pages_noprof (mm/page_alloc.c:4713) 
[3835.164648][T20252] ? __pfx___alloc_pages_noprof (mm/page_alloc.c:4666) 
[3835.164924][T20252] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[3835.165190][T20252] ? v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) 
[3835.165445][T20252] ___kmalloc_large_node (./include/linux/gfp.h:269 ./include/linux/gfp.h:296 mm/slub.c:4103) 
[3835.165709][T20252] ? v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) 
[3835.165958][T20252] __kmalloc_large_node_noprof (./arch/x86/include/asm/bitops.h:417 ./include/asm-generic/getorder.h:46 mm/slub.c:4132) 
[3835.166219][T20252] __kmalloc_noprof (./arch/x86/include/asm/bitops.h:417 ./include/asm-generic/getorder.h:46 mm/slub.c:4148 mm/slub.c:4170) 
[3835.166474][T20252] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[3835.166677][T20252] v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) 
[3835.166934][T20252] v9fs_dir_readdir_dotl (fs/9p/vfs_dir.c:160) 
[3835.167204][T20252] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[3835.167461][T20252] ? __pfx_v9fs_dir_readdir_dotl (fs/9p/vfs_dir.c:148) 
[3835.167783][T20252] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) 
[3835.168035][T20252] ? iterate_dir (fs/readdir.c:101) 
[3835.168297][T20252] ? 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) 
[3835.168578][T20252] ? __pfx_rwsem_read_trylock (kernel/locking/rwsem.c:242) 
[3835.168838][T20252] ? iterate_dir (fs/readdir.c:101) 
[3835.169088][T20252] ? lock_acquire (kernel/locking/lockdep.c:5732) 
[3835.169338][T20252] ? iterate_dir (fs/readdir.c:101) 
[3835.169597][T20252] ? down_read_killable (kernel/locking/rwsem.c:1249 kernel/locking/rwsem.c:1273 kernel/locking/rwsem.c:1551) 
[3835.169857][T20252] ? iterate_dir (fs/readdir.c:101) 
[3835.170113][T20252] ? __pfx_down_read_killable (kernel/locking/rwsem.c:1547) 
[3835.170367][T20252] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5724) 
[3835.170624][T20252] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[3835.170897][T20252] iterate_dir (fs/readdir.c:108) 
[3835.171158][T20252] ovl_iterate (fs/overlayfs/readdir.c:775) 
[3835.171424][T20252] ? wrap_directory_iterator (fs/readdir.c:54) 
[3835.171680][T20252] ? __pfx_ovl_iterate (fs/overlayfs/readdir.c:751) 
[3835.171971][T20252] ? __pfx_ovl_iterate (fs/overlayfs/readdir.c:751) 
[3835.172224][T20252] wrap_directory_iterator (fs/readdir.c:65) 
[3835.172480][T20252] iterate_dir (fs/readdir.c:108) 
[3835.172737][T20252] __x64_sys_getdents64 (fs/readdir.c:408 fs/readdir.c:392 fs/readdir.c:392) 
[3835.172993][T20252] ? __pfx___x64_sys_getdents64 (fs/readdir.c:392) 
[3835.173249][T20252] ? do_user_addr_fault (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/linux/mm.h:715 arch/x86/mm/fault.c:1340) 
[3835.173501][T20252] ? __pfx_filldir64 (fs/readdir.c:350) 
[3835.173756][T20252] ? do_user_addr_fault (./include/linux/rcupdate.h:871 ./include/linux/mm.h:715 arch/x86/mm/fault.c:1340) 
[3835.174028][T20252] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[3835.174286][T20252] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 3835.174599][T20252] RIP: 0033:0x7f3db1d205b7
[ 3835.174862][T20252] 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
[ 3835.175733][T20252] RSP: 002b:00007ffee4dc4bd8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
[ 3835.176126][T20252] RAX: ffffffffffffffda RBX: 00007f3db1727040 RCX: 00007f3db1d205b7
[ 3835.176503][T20252] RDX: 0000000000020000 RSI: 00007f3db1727040 RDI: 0000000000000006
[ 3835.176876][T20252] RBP: 00007f3db1727014 R08: 00007f3db1727010 R09: 0000000000000000
[ 3835.177257][T20252] R10: 0000000000000022 R11: 0000000000000293 R12: ffffffffffffff38


Finger prints:
warn_alloc:__alloc_pages_noprof:___kmalloc_large_node:__kmalloc_large_node_noprof:__kmalloc_noprof