======================================
| make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [  225.313582][ T1103] iperf3 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  225.314276][ T1103] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  225.314278][ T1103] Call Trace:
[  225.314280][ T1103]  <TASK>
[ 225.314283][ T1103] dump_stack_lvl (lib/dump_stack.c:123) 
[ 225.314297][ T1103] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 225.314310][ T1103] oom_kill_process (mm/oom_kill.c:1041) 
[ 225.314317][ T1103] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 225.314323][ T1103] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 225.314336][ T1103] __alloc_pages_may_oom (mm/page_alloc.c:3645) 
[ 225.314344][ T1103] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3577) 
[ 225.314364][ T1103] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4433) 
[ 225.314377][ T1103] ? get_page_from_freelist (mm/page_alloc.c:3235 mm/page_alloc.c:3430) 
[ 225.314382][ T1103] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4206) 
[ 225.314399][ T1103] __alloc_frozen_pages_noprof (mm/page_alloc.c:4753) 
[ 225.314405][ T1103] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4706) 
[ 225.314409][ T1103] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) 
[ 225.314420][ T1103] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 225.314425][ T1103] ? kmem_cache_alloc_node_noprof (mm/slub.c:4221) 
[ 225.314428][ T1103] ? __create_object (mm/kmemleak.c:766) 
[ 225.314441][ T1103] alloc_pages_mpol (mm/mempolicy.c:2272) 
[ 225.314449][ T1103] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2227) 
[ 225.314455][ T1103] ? __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:125 net/core/skbuff.c:692) 
[ 225.314468][ T1103] alloc_pages_noprof (mm/mempolicy.c:2341 mm/mempolicy.c:2361) 
[ 225.314475][ T1103] skb_page_frag_refill (net/core/sock.c:3104 net/core/sock.c:3079) 
[ 225.314482][ T1103] sk_page_frag_refill (net/core/sock.c:3115) 
[ 225.314490][ T1103] tcp_sendmsg_locked (net/ipv4/tcp.c:1206) 
[ 225.314515][ T1103] ? __pfx_tcp_sendmsg_locked (net/ipv4/tcp.c:1061) 
[ 225.314521][ T1103] ? 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:230) 
[ 225.314527][ T1103] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 225.314534][ T1103] ? mark_held_locks (kernel/locking/lockdep.c:4323) 
[ 225.314546][ T1103] tcp_sendmsg (net/ipv4/tcp.c:1367) 
[ 225.314552][ T1103] sock_write_iter (net/socket.c:709 net/socket.c:724 net/socket.c:1128) 
[ 225.314562][ T1103] ? __pfx_sock_write_iter (net/socket.c:1112) 
[ 225.314581][ T1103] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 225.314591][ T1103] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 225.314598][ T1103] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 225.314605][ T1103] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 225.314613][ T1103] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1051) 
[ 225.314636][ T1103] ksys_write (fs/read_write.c:731) 
[ 225.314639][ T1103] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 225.314645][ T1103] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 225.314659][ T1103] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 225.314666][ T1103] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  225.314671][ T1103] RIP: 0033:0x7faed6b4bbaf
[ 225.314677][ T1103] 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
[  225.314680][ T1103] RSP: 002b:00007faecfa20cd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  225.314684][ T1103] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007faed6b4bbaf
[  225.314686][ T1103] RDX: 0000000000020000 RSI: 00007faed626f000 RDI: 000000000000001f
[  225.314688][ T1103] RBP: 00007faed626f000 R08: 0000000000000002 R09: 00007ffdc70dc3bf
[  225.314690][ T1103] R10: 0000000000000008 R11: 0000000000000246 R12: 000000000000001f


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