======================================
| make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [  318.730893][ T1403] iperf3 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  318.731646][ T1403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  318.731648][ T1403] Call Trace:
[  318.731651][ T1403]  <TASK>
[ 318.731653][ T1403] dump_stack_lvl (lib/dump_stack.c:123) 
[ 318.731663][ T1403] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 318.731675][ T1403] oom_kill_process (mm/oom_kill.c:1041) 
[ 318.731681][ T1403] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 318.731687][ T1403] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 318.731699][ T1403] __alloc_pages_may_oom (mm/page_alloc.c:3820) 
[ 318.731707][ T1403] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3752) 
[ 318.731726][ T1403] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4622) 
[ 318.731738][ T1403] ? get_page_from_freelist (mm/page_alloc.c:3405 mm/page_alloc.c:3605) 
[ 318.731742][ T1403] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4390) 
[ 318.731753][ T1403] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 318.731764][ T1403] __alloc_frozen_pages_noprof (mm/page_alloc.c:4947) 
[ 318.731769][ T1403] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4900) 
[ 318.731781][ T1403] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 318.731785][ T1403] ? kmem_cache_alloc_node_noprof (mm/slub.c:4257) 
[ 318.731791][ T1403] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 318.731799][ T1403] alloc_pages_mpol (mm/mempolicy.c:2303) 
[ 318.731807][ T1403] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2258) 
[ 318.731813][ T1403] ? __alloc_skb (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/core/skbuff.c:692) 
[ 318.731824][ T1403] alloc_pages_noprof (mm/mempolicy.c:2372 mm/mempolicy.c:2392) 
[ 318.731831][ T1403] skb_page_frag_refill (net/core/sock.c:3109 net/core/sock.c:3084) 
[ 318.731838][ T1403] sk_page_frag_refill (net/core/sock.c:3120) 
[ 318.731846][ T1403] tcp_sendmsg_locked (net/ipv4/tcp.c:1206) 
[ 318.731870][ T1403] ? __pfx_tcp_sendmsg_locked (net/ipv4/tcp.c:1061) 
[ 318.731878][ T1403] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 318.731889][ T1403] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:412) 
[ 318.731898][ T1403] tcp_sendmsg (net/ipv4/tcp.c:1367) 
[ 318.731903][ T1403] sock_write_iter (net/socket.c:712 net/socket.c:727 net/socket.c:1131) 
[ 318.731909][ T1403] ? __pfx_sock_write_iter (net/socket.c:1115) 
[ 318.731927][ T1403] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 318.731935][ T1403] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
[ 318.731942][ T1403] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 318.731946][ T1403] ? __pfx_vfs_write (fs/read_write.c:665) 
[ 318.731955][ T1403] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1057) 
[ 318.731973][ T1403] ksys_write (fs/read_write.c:736) 
[ 318.731976][ T1403] ? xfd_validate_state (arch/x86/kernel/fpu/xstate.c:1422 arch/x86/kernel/fpu/xstate.c:1466) 
[ 318.731981][ T1403] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 318.731993][ T1403] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 318.732000][ T1403] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  318.732004][ T1403] RIP: 0033:0x7fb3a31b2baf
[ 318.732009][ T1403] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 89 d0 f5 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 dc d0 f5 ff 48
All code
========
   0:	89 54 24 18          	mov    %edx,0x18(%rsp)
   4:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
   9:	89 7c 24 08          	mov    %edi,0x8(%rsp)
   d:	e8 89 d0 f5 ff       	call   0xfffffffffff5d09b
  12:	48 8b 54 24 18       	mov    0x18(%rsp),%rdx
  17:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
  1c:	41 89 c0             	mov    %eax,%r8d
  1f:	8b 7c 24 08          	mov    0x8(%rsp),%edi
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 31                	ja     0x63
  32:	44 89 c7             	mov    %r8d,%edi
  35:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  3a:	e8 dc d0 f5 ff       	call   0xfffffffffff5d11b
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 31                	ja     0x39
   8:	44 89 c7             	mov    %r8d,%edi
   b:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  10:	e8 dc d0 f5 ff       	call   0xfffffffffff5d0f1
  15:	48                   	rex.W
[  318.732012][ T1403] RSP: 002b:00007fb3a1892cd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  318.732016][ T1403] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007fb3a31b2baf
[  318.732018][ T1403] RDX: 0000000000020000 RSI: 00007fb3a2a36000 RDI: 0000000000000009
[  318.732020][ T1403] RBP: 00007fb3a2a36000 R08: 0000000000000002 R09: 00007fffaf10afaf
[  318.732022][ T1403] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000009


Finger prints:
dump_header:oom_kill_process:out_of_memory:__alloc_pages_may_oom:__alloc_frozen_pages_noprof