make -C tools/testing/selftests TARGETS="net" TEST_PROGS=msg_zerocopy.sh TTEST_GEN_PROGS="" run_tests make: Entering directory '/home/virtme/testing-3/tools/testing/selftests' make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net' make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net' TAP version 13 1..1 # overriding timeout to 7200 # selftests: net: msg_zerocopy.sh # 1.53 [+1.53] ipv4 tcp -t 1 # 3.14 [+1.62] tx=6330 (395 MB) txc=0 zc=n # 3.54 [+0.40] rx=3164 (395 MB) # 3.54 [+0.00] ipv4 tcp -z -t 1 # 5.18 [+1.64] tx=4435 (276 MB) txc=4435 zc=n # 5.54 [+0.36] rx=2218 (276 MB) # 5.55 [+0.01] ok # 7.48 [+1.93] ipv6 tcp -t 1 # 9.07 [+1.59] tx=8059 (502 MB) txc=0 zc=n # 9.46 [+0.39] rx=4028 (502 MB) # 9.47 [+0.00] ipv6 tcp -z -t 1 # 11.10 [+1.64] tx=5171 (322 MB) txc=5171 zc=n # 11.46 [+0.35] rx=2585 (322 MB) # 11.46 [+0.01] ok # 13.39 [+1.93] ipv4 udp -t 1 # 14.97 [+1.58] tx=14409 (899 MB) txc=0 zc=n # 15.48 [+0.50] rx=13800 (861 MB) # 15.49 [+0.01] ipv4 udp -z -t 1 # 17.09 [+1.60] tx=5704 (355 MB) txc=5704 zc=n # 17.59 [+0.50] rx=5702 (355 MB) # 17.62 [+0.03] ok # 19.43 [+1.81] ipv6 udp -t 1 # 21.01 [+1.58] tx=14255 (889 MB) txc=0 zc=n # 21.51 [+0.50] rx=13517 (843 MB) # 21.52 [+0.01] ipv6 udp -z -t 1 # 23.12 [+1.60] tx=5725 (357 MB) txc=5725 zc=n # 23.62 [+0.50] rx=5706 (356 MB) # 23.64 [+0.02] ok # 23.85 [+0.22] OK. All tests passed ok 1 selftests: net: msg_zerocopy.sh make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net' make: Leaving directory '/home/virtme/testing-3/tools/testing/selftests' xx__-> echo $? 0 xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak unreferenced object 0xffff88800b82ae00 (size 256): comm "ip", pid 256, jiffies 4294678578 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff88800aa2ca00 (size 256): comm "ip", pid 257, jiffies 4294678720 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 DETECTED CRASH, lowering timeout fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff88800aa70400 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294684181 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff8880096a0400 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294684233 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff88800c2cdc00 (size 256): comm "ip", pid 280, jiffies 4294684373 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff88800cd69f00 (size 256): comm "ip", pid 281, jiffies 4294684524 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff88800cd68700 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294690140 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff888009554100 (size 256): comm "ip", pid 304, jiffies 4294690341 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff8880025aae00 (size 256): comm "ip", pid 305, jiffies 4294690457 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff888009c6d300 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294696287 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff888008fc1600 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294696347 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff88800da2a500 (size 256): comm "ip", pid 327, jiffies 4294696398 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff888002500100 (size 256): comm "ip", pid 328, jiffies 4294696542 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak DETECTED CRASH, lowering timeout unreferenced object 0xffff88800b82ae00 (size 256): comm "ip", pid 256, jiffies 4294678578 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff88800aa2ca00 (size 256): comm "ip", pid 257, jiffies 4294678720 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff88800aa70400 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294684181 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff8880096a0400 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294684233 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff88800c2cdc00 (size 256): comm "ip", pid 280, jiffies 4294684373 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff88800cd69f00 (size 256): comm "ip", pid 281, jiffies 4294684524 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff88800995a500 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294690075 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff88800cd68700 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294690140 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff888009554100 (size 256): comm "ip", pid 304, jiffies 4294690341 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff8880025aae00 (size 256): comm "ip", pid 305, jiffies 4294690457 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff888009c6d300 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294696287 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff888008fc1600 (size 256): comm "kworker/u16:0", pid 11, jiffies 4294696347 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 ops_exit_list+0x99/0x170 cleanup_net+0x4fe/0xaf0 process_one_work+0xe55/0x16d0 worker_thread+0x58c/0xce0 kthread+0x359/0x5d0 ret_from_fork+0x31/0x70 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff88800da2a500 (size 256): comm "ip", pid 327, jiffies 4294696398 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f unreferenced object 0xffff888002500100 (size 256): comm "ip", pid 328, jiffies 4294696542 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kmalloc_node_noprof+0x35d/0x4a0 fib4_semantics_init+0x25/0xf0 fib_net_init+0x17e/0x340 ops_init+0x189/0x550 setup_net+0x189/0x750 copy_net_ns+0x238/0x4b0 create_new_namespaces+0x35f/0x920 unshare_nsproxy_namespaces+0x8a/0x1b0 ksys_unshare+0x2c4/0x6e0 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f xx__->