======================================
| make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [  243.448298][ T1220] iperf3 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  243.448922][ T1220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  243.448924][ T1220] Call Trace:
[  243.448926][ T1220]  <TASK>
[ 243.448928][ T1220] dump_stack_lvl (lib/dump_stack.c:123) 
[ 243.448937][ T1220] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 243.448950][ T1220] oom_kill_process (mm/oom_kill.c:1041) 
[ 243.448956][ T1220] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 243.448962][ T1220] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 243.448976][ T1220] __alloc_pages_may_oom (mm/page_alloc.c:3645) 
[ 243.448983][ T1220] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3577) 
[ 243.449004][ T1220] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4433) 
[ 243.449018][ T1220] ? get_page_from_freelist (mm/page_alloc.c:3235 mm/page_alloc.c:3430) 
[ 243.449023][ T1220] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4206) 
[ 243.449041][ T1220] __alloc_frozen_pages_noprof (mm/page_alloc.c:4753) 
[ 243.449046][ T1220] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4706) 
[ 243.449050][ T1220] ? __might_fault (mm/memory.c:6839 mm/memory.c:6832) 
[ 243.449061][ T1220] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 243.449065][ T1220] ? kmem_cache_alloc_node_noprof (mm/slub.c:4221) 
[ 243.449068][ T1220] ? __create_object (mm/kmemleak.c:766) 
[ 243.449081][ T1220] alloc_pages_mpol (mm/mempolicy.c:2272) 
[ 243.449087][ T1220] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2227) 
[ 243.449093][ T1220] ? __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) 
[ 243.449105][ T1220] alloc_pages_noprof (mm/mempolicy.c:2341 mm/mempolicy.c:2361) 
[ 243.449111][ T1220] skb_page_frag_refill (net/core/sock.c:3104 net/core/sock.c:3079) 
[ 243.449119][ T1220] sk_page_frag_refill (net/core/sock.c:3115) 
[ 243.449127][ T1220] tcp_sendmsg_locked (net/ipv4/tcp.c:1206) 
[ 243.449154][ T1220] ? __pfx_tcp_sendmsg_locked (net/ipv4/tcp.c:1061) 
[ 243.449160][ T1220] ? 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) 
[ 243.449165][ T1220] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 243.449172][ T1220] ? mark_held_locks (kernel/locking/lockdep.c:4323) 
[ 243.449184][ T1220] tcp_sendmsg (net/ipv4/tcp.c:1367) 
[ 243.449189][ T1220] sock_write_iter (net/socket.c:709 net/socket.c:724 net/socket.c:1128) 
[ 243.449195][ T1220] ? __pfx_sock_write_iter (net/socket.c:1112) 
[ 243.449214][ T1220] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 243.449223][ T1220] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 243.449229][ T1220] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 243.449235][ T1220] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 243.449243][ T1220] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1051) 
[ 243.449257][ T1220] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 243.449268][ T1220] ksys_write (fs/read_write.c:731) 
[ 243.449273][ T1220] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 243.449276][ T1220] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 243.449292][ T1220] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 243.449299][ T1220] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  243.449303][ T1220] RIP: 0033:0x7fc06b30cbaf
[ 243.449312][ T1220] Code: Unable to access opcode bytes at 0x7fc06b30cb85.

Code starting with the faulting instruction
===========================================
[  243.449313][ T1220] RSP: 002b:00007fc06a9eecd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  243.449317][ T1220] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007fc06b30cbaf
[  243.449319][ T1220] RDX: 0000000000020000 RSI: 00007fc06abd0000 RDI: 0000000000000005
[  243.449321][ T1220] RBP: 00007fc06abd0000 R08: 0000000000000002 R09: 00007ffe90f1ca9f
[  243.449323][ T1220] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000005
[  243.449324][ T1220] R13: 0000000000020000 R14: 00007fc06a9eed60 R15: 000055707208cad0
| [  243.506180][ T1220] [   1812]     0  1812    56411       71       64        7         0    57344        0             0 python3
| [  243.506743][ T1220] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,task=iperf3,pid=1214,uid=0
| [  243.507439][ T1220] Out of memory: Killed process 1214 (iperf3) total-vm:142584kB, anon-rss:3072kB, file-rss:196kB, shmem-rss:0kB, UID:0 pgtables:124kB oom_score_adj:0
| [  243.633564][ T1812] python3 invoked oom-killer: gfp_mask=0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), order=0, oom_score_adj=0
[  243.635287][ T1812] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  243.635289][ T1812] Call Trace:
[  243.635291][ T1812]  <TASK>
[ 243.635294][ T1812] dump_stack_lvl (lib/dump_stack.c:123) 
[ 243.635303][ T1812] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 243.635315][ T1812] oom_kill_process (mm/oom_kill.c:1041) 
[ 243.635322][ T1812] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 243.635328][ T1812] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 243.635342][ T1812] __alloc_pages_may_oom (mm/page_alloc.c:3645) 
[ 243.635349][ T1812] ? __pfx___alloc_pages_may_oom (mm/page_alloc.c:3577) 
[ 243.635370][ T1812] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4433) 
[ 243.635383][ T1812] ? get_page_from_freelist (mm/page_alloc.c:3235 mm/page_alloc.c:3430) 
[ 243.635387][ T1812] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4206) 
[ 243.635405][ T1812] __alloc_frozen_pages_noprof (mm/page_alloc.c:4753) 
[ 243.635411][ T1812] ? __pfx___alloc_frozen_pages_noprof (mm/page_alloc.c:4706) 
[ 243.635414][ T1812] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 243.635430][ T1812] ? filemap_get_entry (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 mm/filemap.c:1877) 
[ 243.635443][ T1812] alloc_pages_mpol (mm/mempolicy.c:2272) 
[ 243.635450][ T1812] ? __pfx_alloc_pages_mpol (mm/mempolicy.c:2227) 
[ 243.635458][ T1812] ? down_read (kernel/locking/rwsem.c:1247 kernel/locking/rwsem.c:1261 kernel/locking/rwsem.c:1526) 
[ 243.635467][ T1812] folio_alloc_noprof (mm/mempolicy.c:2361 mm/mempolicy.c:2371) 
[ 243.635473][ T1812] __filemap_get_folio (mm/filemap.c:1969) 
[ 243.635483][ T1812] filemap_fault (mm/filemap.c:3412) 
[ 243.635491][ T1812] ? do_fault_around (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 mm/memory.c:5370) 
[ 243.635496][ T1812] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 243.635501][ T1812] ? __pfx_filemap_fault (mm/filemap.c:3361) 
[ 243.635513][ T1812] ? do_fault_around (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 mm/memory.c:5370) 
[ 243.635517][ T1812] ? __pfx_filemap_map_pages (mm/filemap.c:3691) 
[ 243.635526][ T1812] __do_fault (mm/memory.c:4989) 
[ 243.635533][ T1812] do_pte_missing (mm/memory.c:5409 mm/memory.c:5543 mm/memory.c:4059) 
[ 243.635537][ T1812] ? handle_pte_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/pgtable.h:136 mm/memory.c:5882) 
[ 243.635545][ T1812] handle_pte_fault (mm/memory.c:5888) 
[ 243.635553][ T1812] ? __pfx_handle_pte_fault (mm/memory.c:5845) 
[ 243.635568][ T1812] __handle_mm_fault (mm/memory.c:6031) 
[ 243.635574][ T1812] ? __pfx___handle_mm_fault (mm/memory.c:5940) 
[ 243.635595][ T1812] ? __pfx_lock_vma_under_rcu (mm/memory.c:6356) 
[ 243.635604][ T1812] handle_mm_fault (mm/memory.c:6212) 
[ 243.635609][ T1812] ? __pfx_handle_mm_fault (mm/memory.c:6167) 
[ 243.635615][ T1812] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 243.635627][ T1812] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 243.635643][ T1812] exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:147 arch/x86/mm/fault.c:1488 arch/x86/mm/fault.c:1538) 
[ 243.635649][ T1812] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[  243.635652][ T1812] RIP: 0033:0x7f0310b314bd
[ 243.635660][ T1812] Code: Unable to access opcode bytes at 0x7f0310b31493.

Code starting with the faulting instruction
===========================================
[  243.635662][ T1812] RSP: 002b:00007ffc1e61e8a0 EFLAGS: 00010202
[  243.635666][ T1812] RAX: 0000000000000023 RBX: 00007ffc1e61e920 RCX: 00007ffc1e61e93e
[  243.635668][ T1812] RDX: 0000000000000023 RSI: 00007f0310c7f3c0 RDI: 00007ffc1e61e920
[  243.635669][ T1812] RBP: 00007ffc1e61eaf0 R08: 00007ffc1e61e920 R09: 0000000000000077
[  243.635671][ T1812] R10: 0000000000000063 R11: 0000000000000246 R12: 00007ffc1e61e920


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