make -C tools/testing/selftests TARGETS=net/forwarding TEST_PROGS=q_in_vnii.sh TEST_GEN_PROGS="" run_tests make: Entering directory '/home/virtme/testing-4/tools/testing/selftests' make[1]: Entering directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding' make[1]: Entering directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding' TAP version 13 1..1 # overriding timeout to 21600 # selftests: net/forwarding: q_in_vni.sh [ 22.047188][ T232] ip (232) used greatest stack depth: 23664 bytes left [ 27.106040][ T284] 8021q: 802.1Q VLAN Support v1.8 [ 33.373689][ T329] br1: port 1(vx100) entered blocking state [ 33.374116][ T329] br1: port 1(vx100) entered disabled state [ 33.375223][ T329] vx100: entered allmulticast mode [ 33.377375][ T329] vx100: entered promiscuous mode [ 33.378323][ T329] br1: port 1(vx100) entered blocking state [ 33.378681][ T329] br1: port 1(vx100) entered forwarding state [ 33.707186][ T331] br1: port 2(veth1) entered blocking state [ 33.707973][ T331] br1: port 2(veth1) entered disabled state [ 33.708364][ T331] veth1: entered allmulticast mode [ 33.710496][ T331] veth1: entered promiscuous mode [ 33.872532][ T47] br1: port 2(veth1) entered blocking state [ 33.872952][ T47] br1: port 2(veth1) entered forwarding state [ 34.037073][ C0] ------------[ cut here ]------------ [ 34.037644][ C0] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 [ 34.038194][ C0] load of value 107 is not a valid value for type '_Bool' [ 34.038759][ C0] CPU: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.8.0-rc4-virtme #1 [ 34.039350][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 34.040285][ C0] Workqueue: mld mld_ifc_work [ 34.040661][ C0] Call Trace: [ 34.040960][ C0] [ 34.041196][ C0] dump_stack_lvl+0x92/0xb0 [ 34.041567][ C0] __ubsan_handle_load_invalid_value+0xa7/0xe0 [ 34.042055][ C0] br_forward_finish.cold+0xf/0x3c [bridge] [ 34.042645][ C0] deliver_clone+0x52/0x90 [bridge] [ 34.043119][ C0] br_handle_frame_finish+0xbdd/0x1ce0 [bridge] [ 34.043676][ C0] ? __pfx_br_handle_frame_finish+0x10/0x10 [bridge] [ 34.044297][ C0] ? hlock_class+0x4e/0x130 [ 34.044652][ DETECTED CRASH, lowering timeout C0] ? __pfx_nf_ingress+0x10/0x10 [ 34.045060][ C0] br_handle_frame+0x612/0xe70 [bridge] [ 34.045583][ C0] ? __pfx_br_handle_frame+0x10/0x10 [bridge] [ 34.046119][ C0] __netif_receive_skb_core.constprop.0+0x783/0x2dc0 [ 34.046620][ C0] ? mark_lock+0x38/0x3e0 [ 34.046950][ C0] ? __lock_acquire+0xb67/0x1610 [ 34.047315][ C0] ? __pfx___netif_receive_skb_core.constprop.0+0x10/0x10 [ 34.047847][ C0] ? lock_acquire.part.0+0xe5/0x330 [ 34.048232][ C0] ? process_backlog+0x1ed/0x5e0 [ 34.048603][ C0] __netif_receive_skb_one_core+0xaf/0x1b0 [ 34.049055][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 34.049563][ C0] ? lock_acquire+0x1c1/0x220 [ 34.049920][ C0] ? process_backlog+0x1ed/0x5e0 [ 34.050290][ C0] process_backlog+0xd3/0x5e0 [ 34.050652][ C0] __napi_poll.constprop.0+0xa2/0x460 [ 34.051054][ C0] net_rx_action+0x440/0xb40 [ 34.051410][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 34.051791][ C0] ? hlock_class+0x20/0x130 [ 34.052146][ C0] ? mark_held_locks+0xa5/0xf0 [ 34.052511][ C0] __do_softirq+0x1b9/0x7ff [ 34.052862][ C0] ? __dev_queue_xmit+0x6cd/0x17e0 [ 34.053278][ C0] do_softirq+0x4d/0xa0 [ 34.053624][ C0] [ 34.053841][ C0] [ 34.054058][ C0] __local_bh_enable_ip+0xf6/0x120 [ 34.054437][ C0] ? __dev_queue_xmit+0x6cd/0x17e0 [ 34.054833][ C0] __dev_queue_xmit+0x6e2/0x17e0 [ 34.055227][ C0] ? mark_held_locks+0xa5/0xf0 [ 34.055617][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 34.056126][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 34.056538][ C0] ? neigh_hh_output+0x348/0x590 [ 34.056951][ C0] ip6_finish_output2+0x534/0xf80 [ 34.057369][ C0] ip6_finish_output+0x4ed/0xd30 [ 34.057764][ C0] ip6_output+0x1f3/0x770 [ 34.058112][ C0] ? __pfx_ip6_output+0x10/0x10 [ 34.058489][ C0] ? lock_acquire.part.0+0xe5/0x330 [ 34.058898][ C0] ? hlock_class+0x4e/0x130 [ 34.059259][ C0] ? __lock_release+0x40f/0x880 [ 34.059650][ C0] NF_HOOK.constprop.0+0xe2/0x680 [ 34.060054][ C0] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 34.060487][ C0] ? __pfx_xfrm_lookup_with_ifid+0x10/0x10 [ 34.060945][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 34.061460][ C0] ? icmp6_dst_alloc+0x2c0/0x450 [ 34.061840][ C0] ? __local_bh_enable_ip+0xa6/0x120 [ 34.062254][ C0] mld_sendpack+0x62c/0xbc0 [ 34.062621][ C0] ? __pfx_mld_sendpack+0x10/0x10 [ 34.063041][ C0] ? mld_send_cr+0x3a1/0x780 [ 34.063423][ C0] mld_ifc_work+0x36/0x200 [ 34.063776][ C0] process_one_work+0x78c/0x1310 [ 34.064171][ C0] ? hlock_class+0x4e/0x130 [ 34.064522][ C0] ? __pfx_process_one_work+0x10/0x10 [ 34.064969][ C0] ? assign_work+0x16c/0x240 [ 34.065335][ C0] worker_thread+0x73d/0x1010 [ 34.065730][ C0] ? __pfx_worker_thread+0x10/0x10 [ 34.066124][ C0] kthread+0x28f/0x360 [ 34.066441][ C0] ? __pfx_kthread+0x10/0x10 [ 34.066817][ C0] ret_from_fork+0x31/0x70 [ 34.067162][ C0] ? __pfx_kthread+0x10/0x10 [ 34.067526][ C0] ret_from_fork_asm+0x1b/0x30 [ 34.067929][ C0] [ 34.068287][ C0] ---[ end trace ]--- [ 34.241381][ T334] br1: port 3(veth2) entered blocking state [ 34.241745][ T334] br1: port 3(veth2) entered disabled state [ 34.242108][ T334] veth2: entered allmulticast mode [ 34.244174][ T334] veth2: entered promiscuous mode [ 34.393944][ T23] br1: port 3(veth2) entered blocking state [ 34.394313][ T23] br1: port 3(veth2) entered forwarding state [ 39.915181][ T376] br2: port 1(w1) entered blocking state [ 39.916370][ T376] br2: port 1(w1) entered disabled state [ 39.916727][ T376] w1: entered allmulticast mode [ 39.918804][ T376] w1: entered promiscuous mode [ 41.046444][ T384] br2: port 2(vx100) entered blocking state [ 41.046841][ T384] br2: port 2(vx100) entered disabled state [ 41.047229][ T384] vx100: entered allmulticast mode [ 41.049644][ T384] vx100: entered promiscuous mode [ 41.050343][ T384] br2: port 2(vx100) entered blocking state [ 41.050695][ T384] br2: port 2(vx100) entered forwarding state [ 42.409825][ T23] br2: port 1(w1) entered blocking state [ 42.410386][ T23] br2: port 1(w1) entered forwarding state [ 44.173457][ C2] ------------[ cut here ]------------ [ 44.173840][ C2] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 [ 44.174243][ C2] load of value 107 is not a valid value for type '_Bool' [ 44.174655][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Not tainted 6.8.0-rc4-virtme #1 [ 44.175122][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.175812][ C2] Workqueue: ipv6_addrconf addrconf_dad_work [ 44.176183][ C2] Call Trace: [ 44.176361][ C2] [ 44.176515][ C2] dump_stack_lvl+0x92/0xb0 [ 44.176775][ C2] __ubsan_handle_load_invalid_value+0xa7/0xe0 [ 44.177138][ C2] skb_scrub_packet.cold+0x10/0x15 [ 44.177451][ C2] __dev_forward_skb2+0x332/0x650 [ 44.177740][ C2] veth_xmit+0x245/0x7c0 [veth] [ 44.178045][ C2] ? __pfx_passthru_features_check+0x10/0x10 [ 44.178413][ C2] dev_hard_start_xmit+0x13d/0x570 [ 44.178694][ C2] __dev_queue_xmit+0xf6d/0x17e0 [ 44.178982][ C2] ? mark_held_locks+0xa5/0xf0 [ 44.179236][ C2] ? eth_header+0x158/0x1a0 [ 44.179522][ C2] ? __pfx___dev_queue_xmit+0x10/0x10 [ 44.179813][ C2] ? neigh_resolve_output+0x3ec/0x7a0 [ 44.180163][ C2] ? __neigh_update+0x5bc/0x2620 [ 44.180488][ C2] __neigh_update+0x6a6/0x2620 [ 44.180776][ C2] arp_process+0x7f2/0x2150 [ 44.181069][ C2] ? __pfx_arp_process+0x10/0x10 [ 44.181363][ C2] ? lock_acquire.part.0+0xe5/0x330 [ 44.181692][ C2] ? __pfx_arp_rcv+0x10/0x10 [ 44.181974][ C2] __netif_receive_skb_one_core+0x16b/0x1b0 [ 44.182307][ C2] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 44.182689][ C2] ? lock_acquire+0x1c1/0x220 [ 44.182984][ C2] ? process_backlog+0x1ed/0x5e0 [ 44.183287][ C2] process_backlog+0xd3/0x5e0 [ 44.183562][ C2] __napi_poll.constprop.0+0xa2/0x460 [ 44.183868][ C2] net_rx_action+0x440/0xb40 [ 44.184147][ C2] ? __pfx_net_rx_action+0x10/0x10 [ 44.184476][ C2] ? hlock_class+0x20/0x130 [ 44.184778][ C2] ? mark_held_locks+0xa5/0xf0 [ 44.185036][ C2] __do_softirq+0x1b9/0x7ff [ 44.185283][ C2] ? __dev_queue_xmit+0x6cd/0x17e0 [ 44.185616][ C2] do_softirq+0x4d/0xa0 [ 44.185838][ C2] [ 44.186082][ C2] [ 44.186238][ C2] __local_bh_enable_ip+0xf6/0x120 [ 44.186581][ C2] ? __dev_queue_xmit+0x6cd/0x17e0 [ 44.186874][ C2] __dev_queue_xmit+0x6e2/0x17e0 [ 44.187179][ C2] ? mark_held_locks+0xa5/0xf0 [ 44.187437][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 44.187830][ C2] ? __pfx___dev_queue_xmit+0x10/0x10 [ 44.188156][ C2] ip6_finish_output2+0x534/0xf80 [ 44.188448][ C2] ip6_finish_output+0x4ed/0xd30 [ 44.188755][ C2] ip6_output+0x1f3/0x770 [ 44.189044][ C2] ? __pfx_ip6_output+0x10/0x10 [ 44.189326][ C2] ? lock_acquire.part.0+0xe5/0x330 [ 44.189619][ C2] ? hlock_class+0x4e/0x130 [ 44.189882][ C2] ? __lock_release+0x40f/0x880 [ 44.190180][ C2] NF_HOOK.constprop.0+0xe2/0x680 [ 44.190503][ C2] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 44.190807][ C2] ? __pfx_xfrm_lookup_with_ifid+0x10/0x10 [ 44.191116][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 44.191467][ C2] ? icmp6_dst_alloc+0x2c0/0x450 [ 44.191726][ C2] ? __local_bh_enable_ip+0xa6/0x120 [ 44.192009][ C2] mld_sendpack+0x62c/0xbc0 [ 44.192251][ C2] ? ipv6_mc_dad_complete+0x27/0x230 [ 44.192531][ C2] ? __pfx_mld_sendpack+0x10/0x10 [ 44.192818][ C2] ipv6_mc_dad_complete+0x1c4/0x230 [ 44.193094][ C2] addrconf_dad_completed+0x9e2/0xe10 [ 44.193384][ C2] ? __pfx_addrconf_dad_completed+0x10/0x10 [ 44.193696][ C2] ? mark_held_locks+0xa5/0xf0 [ 44.193955][ C2] ? addrconf_dad_work+0x38c/0xab0 [ 44.194224][ C2] addrconf_dad_work+0x38c/0xab0 [ 44.194490][ C2] ? __pfx_addrconf_dad_work+0x10/0x10 [ 44.194780][ C2] ? lock_acquire+0x1c1/0x220 [ 44.195079][ C2] ? process_one_work+0x714/0x1310 [ 44.195378][ C2] process_one_work+0x78c/0x1310 [ 44.195709][ C2] ? hlock_class+0x4e/0x130 [ 44.195949][ C2] ? __pfx_process_one_work+0x10/0x10 [ 44.196296][ C2] ? assign_work+0x16c/0x240 [ 44.196585][ C2] worker_thread+0x73d/0x1010 [ 44.196869][ C2] ? __pfx_worker_thread+0x10/0x10 [ 44.197187][ C2] kthread+0x28f/0x360 [ 44.197436][ C2] ? __pfx_kthread+0x10/0x10 [ 44.197711][ C2] ret_from_fork+0x31/0x70 [ 44.198007][ C2] ? __pfx_kthread+0x10/0x10 [ 44.198275][ C2] ret_from_fork_asm+0x1b/0x30 [ 44.198567][ C2] [ 44.198746][ C2] ---[ end trace ]--- [ 44.199205][ C2] ------------[ cut here ]------------ [ 44.199539][ C2] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 [ 44.199991][ C2] load of value 107 is not a valid value for type '_Bool' [ 44.200426][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Not tainted 6.8.0-rc4-virtme #1 [ 44.200886][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.201575][ C2] Workqueue: ipv6_addrconf addrconf_dad_work [ 44.201931][ C2] Call Trace: [ 44.202134][ C2] [ 44.202287][ C2] dump_stack_lvl+0x92/0xb0 [ 44.202549][ C2] __ubsan_handle_load_invalid_value+0xa7/0xe0 [ 44.202917][ C2] ip_forward_finish.cold+0x10/0x15 [ 44.203278][ C2] NF_HOOK.constprop.0+0x7e/0x320 [ 44.203544][ C2] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 44.203863][ C2] ? __netif_receive_skb_core.constprop.0+0x1707/0x2dc0 [ 44.204256][ C2] ? __xfrm_policy_check2.constprop.0+0x32/0x410 [ 44.204625][ C2] ? ip_forward+0x10e3/0x1a20 [ 44.204919][ C2] ? vrf_l3_rcv+0x3ee/0x520 [vrf] [ 44.205243][ C2] ip_rcv+0x62f/0x740 [ 44.205479][ C2] ? __pfx_ip_rcv+0x10/0x10 [ 44.205739][ C2] ? lock_acquire.part.0+0xe5/0x330 [ 44.206014][ C2] ? process_backlog+0x1ed/0x5e0 [ 44.206337][ C2] ? __pfx_ip_rcv+0x10/0x10 [ 44.206607][ C2] __netif_receive_skb_one_core+0x166/0x1b0 [ 44.206937][ C2] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 44.207314][ C2] ? lock_acquire+0x1c1/0x220 [ 44.207610][ C2] ? process_backlog+0x1ed/0x5e0 [ 44.207872][ C2] process_backlog+0xd3/0x5e0 [ 44.208159][ C2] __napi_poll.constprop.0+0xa2/0x460 [ 44.208462][ C2] net_rx_action+0x440/0xb40 [ 44.208736][ C2] ? __pfx_net_rx_action+0x10/0x10 [ 44.209086][ C2] ? hlock_class+0x20/0x130 [ 44.209372][ C2] ? mark_held_locks+0xa5/0xf0 [ 44.209669][ C2] __do_softirq+0x1b9/0x7ff [ 44.209921][ C2] ? __dev_queue_xmit+0x6cd/0x17e0 [ 44.210259][ C2] do_softirq+0x4d/0xa0 [ 44.210482][ C2] [ 44.210637][ C2] [ 44.210793][ C2] __local_bh_enable_ip+0xf6/0x120 [ 44.211061][ C2] ? __dev_queue_xmit+0x6cd/0x17e0 [ 44.211328][ C2] __dev_queue_xmit+0x6e2/0x17e0 [ 44.211641][ C2] ? mark_held_locks+0xa5/0xf0 [ 44.211954][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 44.212345][ C2] ? __pfx___dev_queue_xmit+0x10/0x10 [ 44.212641][ C2] ip6_finish_output2+0x534/0xf80 [ 44.212914][ C2] ip6_finish_output+0x4ed/0xd30 [ 44.213180][ C2] ip6_output+0x1f3/0x770 [ 44.213411][ C2] ? __pfx_ip6_output+0x10/0x10 [ 44.213665][ C2] ? lock_acquire.part.0+0xe5/0x330 [ 44.213939][ C2] ? hlock_class+0x4e/0x130 [ 44.214178][ C2] ? __lock_release+0x40f/0x880 [ 44.214442][ C2] NF_HOOK.constprop.0+0xe2/0x680 [ 44.214707][ C2] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 44.214999][ C2] ? __pfx_xfrm_lookup_with_ifid+0x10/0x10 [ 44.215314][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 44.215655][ C2] ? icmp6_dst_alloc+0x2c0/0x450 [ 44.215913][ C2] ? __local_bh_enable_ip+0xa6/0x120 [ 44.216194][ C2] mld_sendpack+0x62c/0xbc0 [ 44.216438][ C2] ? ipv6_mc_dad_complete+0x27/0x230 [ 44.216722][ C2] ? __pfx_mld_sendpack+0x10/0x10 [ 44.217005][ C2] ipv6_mc_dad_complete+0x1c4/0x230 [ 44.217286][ C2] addrconf_dad_completed+0x9e2/0xe10 [ 44.217569][ C2] ? __pfx_addrconf_dad_completed+0x10/0x10 [ 44.217902][ C2] ? mark_held_locks+0xa5/0xf0 [ 44.218198][ C2] ? addrconf_dad_work+0x38c/0xab0 [ 44.218508][ C2] addrconf_dad_work+0x38c/0xab0 [ 44.218874][ C2] ? __pfx_addrconf_dad_work+0x10/0x10 [ 44.219161][ C2] ? lock_acquire+0x1c1/0x220 [ 44.219438][ C2] ? process_one_work+0x714/0x1310 [ 44.219759][ C2] process_one_work+0x78c/0x1310 [ 44.220092][ C2] ? hlock_class+0x4e/0x130 [ 44.220330][ C2] ? __pfx_process_one_work+0x10/0x10 [ 44.220620][ C2] ? assign_work+0x16c/0x240 [ 44.220874][ C2] worker_thread+0x73d/0x1010 [ 44.221165][ C2] ? __pfx_worker_thread+0x10/0x10 [ 44.221439][ C2] kthread+0x28f/0x360 [ 44.221699][ C2] ? __pfx_kthread+0x10/0x10 [ 44.221979][ C2] ret_from_fork+0x31/0x70 [ 44.222229][ C2] ? __pfx_kthread+0x10/0x10 [ 44.222474][ C2] ret_from_fork_asm+0x1b/0x30 [ 44.222779][ C2] [ 44.223008][ C2] ---[ end trace ]--- [ 46.449366][ T419] br2: port 1(w1) entered blocking state [ 46.449709][ T419] br2: port 1(w1) entered disabled state [ 46.450062][ T419] w1: entered allmulticast mode [ 46.452926][ T419] w1: entered promiscuous mode [ 47.625558][ T426] br2: port 2(vx100) entered blocking state [ 47.625910][ T426] br2: port 2(vx100) entered disabled state [ 47.626294][ T426] vx100: entered allmulticast mode [ 47.629042][ T426] vx100: entered promiscuous mode [ 47.629666][ T426] br2: port 2(vx100) entered blocking state [ 47.629989][ T426] br2: port 2(vx100) entered forwarding state [ 48.970896][ T23] br2: port 1(w1) entered blocking state [ 48.971326][ T23] br2: port 1(w1) entered forwarding state # Running tests with UDP port 4789 # TEST: ping: local->local [ OK ] # TEST: ping: local->remote 1 [ OK ] # TEST: ping: local->remote 2 [ OK ] [ 63.980027][ T11] vx100: left allmulticast mode [ 63.980410][ T11] vx100: left promiscuous mode [ 63.980848][ T11] br2: port 2(vx100) entered disabled state [ 63.985270][ T11] w1: left allmulticast mode [ 63.985558][ T11] w1: left promiscuous mode [ 63.985957][ T11] br2: port 1(w1) entered disabled state [ 64.432758][ T11] vx100: left allmulticast mode [ 64.433057][ T11] vx100: left promiscuous mode [ 64.433478][ T11] br2: port 2(vx100) entered disabled state [ 64.437208][ T11] w1: left allmulticast mode [ 64.437536][ T11] w1: left promiscuous mode [ 64.437975][ T11] br2: port 1(w1) entered disabled state [ 67.521482][ T528] br1: port 3(veth2) entered disabled state [ 67.672006][ T529] veth2: left allmulticast mode [ 67.672338][ T529] veth2: left promiscuous mode [ 67.672750][ T529] br1: port 3(veth2) entered disabled state [ 67.984691][ T531] br1: port 2(veth1) entered disabled state [ 68.145517][ T532] veth1: left allmulticast mode [ 68.145835][ T532] veth1: left promiscuous mode [ 68.146250][ T532] br1: port 2(veth1) entered disabled state [ 68.304418][ T533] vx100: left allmulticast mode [ 68.304732][ T533] vx100: left promiscuous mode [ 68.305141][ T533] br1: port 1(vx100) entered disabled state ok 1 selftests: net/forwarding: q_in_vni.sh make[1]: Leaving directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding' make: Leaving directory '/home/virtme/testing-4/tools/testing/selftests' xx__-> echo $? 0 xx__->