======================================
| make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [  299.196756][ T1184] iperf3 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  299.199440][ T1184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  299.199443][ T1184] Call Trace:
[  299.199445][ T1184]  <TASK>
[ 299.199448][ T1184] dump_stack_lvl (lib/dump_stack.c:123) 
[ 299.199457][ T1184] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 299.199468][ T1184] oom_kill_process (mm/oom_kill.c:1041) 
[ 299.199474][ T1184] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 299.199479][ T1184] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 299.199492][ T1184] __alloc_pages_may_oom (mm/page_alloc.c:3816) 
[ 299.199499][ T1184] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3748) 
[ 299.199518][ T1184] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4618) 
[ 299.199530][ T1184] ? get_page_from_freelist (mm/page_alloc.c:3401 mm/page_alloc.c:3601) 
[ 299.199534][ T1184] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4386) 
[ 299.199545][ T1184] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 299.199553][ T1184] __alloc_frozen_pages_noprof (mm/page_alloc.c:4943) 
[ 299.199558][ T1184] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4896) 
[ 299.199572][ T1184] ? ip6_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/ip6_route.h:343 net/ipv6/route.c:3259) 
[ 299.199577][ T1184] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 299.199586][ T1184] alloc_pages_mpol (mm/mempolicy.c:2303) 
[ 299.199593][ T1184] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2258) 
[ 299.199600][ T1184] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1873) 
[ 299.199609][ T1184] alloc_pages_noprof (mm/mempolicy.c:2372 mm/mempolicy.c:2392) 
[ 299.199616][ T1184] skb_page_frag_refill (net/core/sock.c:3105 net/core/sock.c:3080) 
[ 299.199624][ T1184] sk_page_frag_refill (net/core/sock.c:3116) 
[ 299.199632][ T1184] tcp_sendmsg_locked (net/ipv4/tcp.c:1208) 
[ 299.199655][ T1184] ? __pfx_tcp_sendmsg_locked (net/ipv4/tcp.c:1061) 
[ 299.199663][ T1184] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 299.199674][ T1184] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:412) 
[ 299.199683][ T1184] tcp_sendmsg (net/ipv4/tcp.c:1369) 
[ 299.199688][ T1184] sock_write_iter (net/socket.c:712 net/socket.c:727 net/socket.c:1131) 
[ 299.199694][ T1184] ? __pfx_sock_write_iter (net/socket.c:1115) 
[ 299.199712][ T1184] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 299.199719][ T1184] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
[ 299.199727][ T1184] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 299.199731][ T1184] ? __pfx_vfs_write (fs/read_write.c:665) 
[ 299.199739][ T1184] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1057) 
[ 299.199757][ T1184] ksys_write (fs/read_write.c:736) 
[ 299.199762][ T1184] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 299.199764][ T1184] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mm.h:704 ./include/linux/mm.h:799 arch/x86/mm/fault.c:1339) 
[ 299.199777][ T1184] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 299.199784][ T1184] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  299.199788][ T1184] RIP: 0033:0x7f7a64d89baf
[ 299.199795][ T1184] Code: Unable to access opcode bytes at 0x7f7a64d89b85.

Code starting with the faulting instruction
===========================================
[  299.199797][ T1184] RSP: 002b:00007f7a5fc62cd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  299.199801][ T1184] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f7a64d89baf
[  299.199803][ T1184] RDX: 0000000000020000 RSI: 00007f7a6452d000 RDI: 0000000000000017
[  299.199805][ T1184] RBP: 00007f7a6452d000 R08: 0000000000000002 R09: 00007ffe33ac4acf
[  299.199807][ T1184] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000017


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