======================================
| make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [  215.351600][ T1058] iperf3 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  215.352573][ T1058] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  215.352576][ T1058] Call Trace:
[  215.352578][ T1058]  <TASK>
[ 215.352580][ T1058] dump_stack_lvl (lib/dump_stack.c:123) 
[ 215.352589][ T1058] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 215.352597][ T1058] oom_kill_process (mm/oom_kill.c:1041) 
[ 215.352601][ T1058] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 215.352605][ T1058] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 215.352613][ T1058] __alloc_pages_may_oom (mm/page_alloc.c:3642) 
[ 215.352620][ T1058] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3574) 
[ 215.352633][ T1058] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4430) 
[ 215.352641][ T1058] ? get_page_from_freelist (mm/page_alloc.c:3232 mm/page_alloc.c:3427) 
[ 215.352645][ T1058] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4203) 
[ 215.352653][ T1058] ? lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 215.352661][ T1058] __alloc_frozen_pages_noprof (mm/page_alloc.c:4750) 
[ 215.352666][ T1058] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4703) 
[ 215.352676][ T1058] ? ip6_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/ip6_route.h:343 net/ipv6/route.c:3224) 
[ 215.352681][ T1058] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 215.352688][ T1058] alloc_pages_mpol (mm/mempolicy.c:2303) 
[ 215.352694][ T1058] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2258) 
[ 215.352699][ T1058] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1873) 
[ 215.352707][ T1058] alloc_pages_noprof (mm/mempolicy.c:2372 mm/mempolicy.c:2392) 
[ 215.352712][ T1058] skb_page_frag_refill (net/core/sock.c:3104 net/core/sock.c:3079) 
[ 215.352719][ T1058] sk_page_frag_refill (net/core/sock.c:3115) 
[ 215.352725][ T1058] tcp_sendmsg_locked (net/ipv4/tcp.c:1206) 
[ 215.352740][ T1058] ? __pfx_tcp_sendmsg_locked (net/ipv4/tcp.c:1061) 
[ 215.352746][ T1058] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 215.352752][ T1058] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 215.352760][ T1058] tcp_sendmsg (net/ipv4/tcp.c:1367) 
[ 215.352764][ T1058] sock_write_iter (net/socket.c:712 net/socket.c:727 net/socket.c:1131) 
[ 215.352770][ T1058] ? __pfx_sock_write_iter (net/socket.c:1115) 
[ 215.352782][ T1058] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 215.352788][ T1058] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
[ 215.352793][ T1058] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 215.352796][ T1058] ? __pfx_vfs_write (fs/read_write.c:665) 
[ 215.352801][ T1058] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1057) 
[ 215.352816][ T1058] ksys_write (fs/read_write.c:736) 
[ 215.352818][ T1058] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:425) 
[ 215.352823][ T1058] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 215.352831][ T1058] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 215.352836][ T1058] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  215.352840][ T1058] RIP: 0033:0x7fb6e73febaf
[ 215.352845][ T1058] 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
[  215.352848][ T1058] RSP: 002b:00007fb6e2ad8cd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  215.352852][ T1058] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007fb6e73febaf
[  215.352854][ T1058] RDX: 0000000000020000 RSI: 00007fb6e6bc2000 RDI: 0000000000000015
[  215.352856][ T1058] RBP: 00007fb6e6bc2000 R08: 0000000000000002 R09: 00007ffee99f53ff
[  215.352858][ T1058] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000015


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