======================================
| make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [  273.579650][ T1736] iperf3 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  273.581592][ T1736] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  273.581596][ T1736] Call Trace:
[  273.581600][ T1736]  <TASK>
[ 273.581604][ T1736] dump_stack_lvl (lib/dump_stack.c:123) 
[ 273.581617][ T1736] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 273.581628][ T1736] oom_kill_process (mm/oom_kill.c:1041) 
[ 273.581635][ T1736] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 273.581641][ T1736] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 273.581654][ T1736] __alloc_pages_may_oom (mm/page_alloc.c:3642) 
[ 273.581665][ T1736] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3574) 
[ 273.581687][ T1736] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4430) 
[ 273.581702][ T1736] ? get_page_from_freelist (mm/page_alloc.c:3232 mm/page_alloc.c:3427) 
[ 273.581708][ T1736] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4203) 
[ 273.581722][ T1736] ? lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 273.581733][ T1736] __alloc_frozen_pages_noprof (mm/page_alloc.c:4750) 
[ 273.581740][ T1736] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4703) 
[ 273.581754][ T1736] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 273.581760][ T1736] ? kmem_cache_alloc_node_noprof (mm/slub.c:4244) 
[ 273.581766][ T1736] ? __create_object (mm/kmemleak.c:766) 
[ 273.581781][ T1736] alloc_pages_mpol (mm/mempolicy.c:2303) 
[ 273.581791][ T1736] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2258) 
[ 273.581799][ T1736] ? __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) 
[ 273.581814][ T1736] alloc_pages_noprof (mm/mempolicy.c:2372 mm/mempolicy.c:2392) 
[ 273.581823][ T1736] skb_page_frag_refill (net/core/sock.c:3104 net/core/sock.c:3079) 
[ 273.581834][ T1736] sk_page_frag_refill (net/core/sock.c:3115) 
[ 273.581845][ T1736] tcp_sendmsg_locked (net/ipv4/tcp.c:1206) 
[ 273.581873][ T1736] ? __pfx_tcp_sendmsg_locked (net/ipv4/tcp.c:1061) 
[ 273.581882][ T1736] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 273.581893][ T1736] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 273.581904][ T1736] tcp_sendmsg (net/ipv4/tcp.c:1367) 
[ 273.581911][ T1736] sock_write_iter (net/socket.c:712 net/socket.c:727 net/socket.c:1131) 
[ 273.581920][ T1736] ? __pfx_sock_write_iter (net/socket.c:1115) 
[ 273.581942][ T1736] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 273.581951][ T1736] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
[ 273.581959][ T1736] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 273.581964][ T1736] ? __pfx_vfs_write (fs/read_write.c:665) 
[ 273.581972][ T1736] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1057) 
[ 273.581994][ T1736] ksys_write (fs/read_write.c:736) 
[ 273.581998][ T1736] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:425) 
[ 273.582005][ T1736] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 273.582013][ T1736] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 273.582026][ T1736] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 273.582035][ T1736] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  273.582041][ T1736] RIP: 0033:0x7f0aff1a2baf
[ 273.582049][ T1736] 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
[  273.582054][ T1736] RSP: 002b:00007f0af9079cd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  273.582061][ T1736] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f0aff1a2baf
[  273.582065][ T1736] RDX: 0000000000020000 RSI: 00007f0afe906000 RDI: 000000000000001b
[  273.582068][ T1736] RBP: 00007f0afe906000 R08: 0000000000000002 R09: 00007ffd6599f6ef
[  273.582072][ T1736] R10: 0000000000000008 R11: 0000000000000246 R12: 000000000000001b
[  273.582075][ T1736] R13: 0000000000020000 R14: 00007f0af9079d60 R15: 0000560396dcd7b0
| [  273.941304][ T1736] [   2377]     0  2377    59534     2021     1984       37         0    90112        0             0 python3
| [  273.950473][ T1736] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,task=python3,pid=2377,uid=0
| [  273.951494][ T1736] Out of memory: Killed process 2377 (python3) total-vm:238136kB, anon-rss:7936kB, file-rss:148kB, shmem-rss:0kB, UID:0 pgtables:88kB oom_score_adj:0
| [  274.009909][ T1736] iperf3 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  274.011865][ T1736] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.011868][ T1736] Call Trace:
[  274.011871][ T1736]  <TASK>
[ 274.011874][ T1736] dump_stack_lvl (lib/dump_stack.c:123) 
[ 274.011886][ T1736] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 274.011899][ T1736] oom_kill_process (mm/oom_kill.c:1041) 
[ 274.011907][ T1736] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 274.011913][ T1736] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 274.011927][ T1736] __alloc_pages_may_oom (mm/page_alloc.c:3642) 
[ 274.011935][ T1736] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3574) 
[ 274.011960][ T1736] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4430) 
[ 274.011975][ T1736] ? get_page_from_freelist (mm/page_alloc.c:3232 mm/page_alloc.c:3427) 
[ 274.011982][ T1736] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4203) 
[ 274.011994][ T1736] ? lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 274.012006][ T1736] __alloc_frozen_pages_noprof (mm/page_alloc.c:4750) 
[ 274.012012][ T1736] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4703) 
[ 274.012027][ T1736] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 274.012033][ T1736] ? kmem_cache_alloc_node_noprof (mm/slub.c:4244) 
[ 274.012039][ T1736] ? __create_object (mm/kmemleak.c:766) 
[ 274.012053][ T1736] alloc_pages_mpol (mm/mempolicy.c:2303) 
[ 274.012062][ T1736] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2258) 
[ 274.012069][ T1736] ? __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) 
[ 274.012082][ T1736] alloc_pages_noprof (mm/mempolicy.c:2372 mm/mempolicy.c:2392) 
[ 274.012091][ T1736] skb_page_frag_refill (net/core/sock.c:3104 net/core/sock.c:3079) 
[ 274.012102][ T1736] sk_page_frag_refill (net/core/sock.c:3115) 
[ 274.012111][ T1736] tcp_sendmsg_locked (net/ipv4/tcp.c:1206) 
[ 274.012135][ T1736] ? __pfx_tcp_sendmsg_locked (net/ipv4/tcp.c:1061) 
[ 274.012146][ T1736] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 274.012157][ T1736] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 274.012169][ T1736] tcp_sendmsg (net/ipv4/tcp.c:1367) 
[ 274.012176][ T1736] sock_write_iter (net/socket.c:712 net/socket.c:727 net/socket.c:1131) 
[ 274.012184][ T1736] ? __pfx_sock_write_iter (net/socket.c:1115) 
[ 274.012204][ T1736] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 274.012215][ T1736] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
[ 274.012224][ T1736] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 274.012229][ T1736] ? __pfx_vfs_write (fs/read_write.c:665) 
[ 274.012237][ T1736] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1057) 
[ 274.012258][ T1736] ksys_write (fs/read_write.c:736) 
[ 274.012263][ T1736] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:425) 
[ 274.012270][ T1736] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 274.012280][ T1736] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 274.012291][ T1736] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 274.012300][ T1736] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  274.012306][ T1736] RIP: 0033:0x7f0aff1a2baf
[ 274.012312][ T1736] 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
[  274.012317][ T1736] RSP: 002b:00007f0af9079cd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  274.012324][ T1736] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f0aff1a2baf
[  274.012328][ T1736] RDX: 0000000000020000 RSI: 00007f0afe906000 RDI: 000000000000001b
[  274.012331][ T1736] RBP: 00007f0afe906000 R08: 0000000000000002 R09: 00007ffd6599f6ef
[  274.012334][ T1736] R10: 0000000000000008 R11: 0000000000000246 R12: 000000000000001b


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