======================================
| make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [  222.101263][ T1387] iperf3 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  222.101833][ T1387] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  222.101835][ T1387] Call Trace:
[  222.101837][ T1387]  <TASK>
[ 222.101839][ T1387] dump_stack_lvl (lib/dump_stack.c:123) 
[ 222.101848][ T1387] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 222.101856][ T1387] oom_kill_process (mm/oom_kill.c:1041) 
[ 222.101860][ T1387] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 222.101864][ T1387] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 222.101872][ T1387] __alloc_pages_may_oom (mm/page_alloc.c:3642) 
[ 222.101878][ T1387] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3574) 
[ 222.101890][ T1387] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4430) 
[ 222.101898][ T1387] ? get_page_from_freelist (mm/page_alloc.c:3232 mm/page_alloc.c:3427) 
[ 222.101902][ T1387] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4203) 
[ 222.101910][ T1387] ? lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 222.101918][ T1387] __alloc_frozen_pages_noprof (mm/page_alloc.c:4750) 
[ 222.101922][ T1387] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4703) 
[ 222.101930][ T1387] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 222.101934][ T1387] ? kmem_cache_alloc_node_noprof (mm/slub.c:4244) 
[ 222.101937][ T1387] ? __create_object (mm/kmemleak.c:766) 
[ 222.101946][ T1387] alloc_pages_mpol (mm/mempolicy.c:2303) 
[ 222.101952][ T1387] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2258) 
[ 222.101957][ T1387] ? __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) 
[ 222.101965][ T1387] alloc_pages_noprof (mm/mempolicy.c:2372 mm/mempolicy.c:2392) 
[ 222.101970][ T1387] skb_page_frag_refill (net/core/sock.c:3104 net/core/sock.c:3079) 
[ 222.101976][ T1387] sk_page_frag_refill (net/core/sock.c:3115) 
[ 222.101981][ T1387] tcp_sendmsg_locked (net/ipv4/tcp.c:1206) 
[ 222.101996][ T1387] ? __pfx_tcp_sendmsg_locked (net/ipv4/tcp.c:1061) 
[ 222.102002][ T1387] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 222.102008][ T1387] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 222.102015][ T1387] tcp_sendmsg (net/ipv4/tcp.c:1367) 
[ 222.102019][ T1387] sock_write_iter (net/socket.c:712 net/socket.c:727 net/socket.c:1131) 
[ 222.102024][ T1387] ? __pfx_sock_write_iter (net/socket.c:1115) 
[ 222.102035][ T1387] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 222.102041][ T1387] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
[ 222.102046][ T1387] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 222.102049][ T1387] ? __pfx_vfs_write (fs/read_write.c:665) 
[ 222.102054][ T1387] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1057) 
[ 222.102066][ T1387] ksys_write (fs/read_write.c:736) 
[ 222.102070][ T1387] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 222.102075][ T1387] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 222.102082][ T1387] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 222.102087][ T1387] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  222.102091][ T1387] RIP: 0033:0x7f9f38cb2baf
[ 222.102098][ T1387] Code: Unable to access opcode bytes at 0x7f9f38cb2b85.

Code starting with the faulting instruction
===========================================
[  222.102100][ T1387] RSP: 002b:00007f9f3338acd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  222.102103][ T1387] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f9f38cb2baf
[  222.102105][ T1387] RDX: 0000000000020000 RSI: 00007f9f38436000 RDI: 0000000000000019
[  222.102107][ T1387] RBP: 00007f9f38436000 R08: 0000000000000002 R09: 00007ffd5e9daf8f
[  222.102109][ T1387] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000019


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