Warning: Permanently added '10.128.0.80' (ECDSA) to the list of known hosts. 2021/07/18 18:46:49 parsed 1 programs syzkaller login: [ 70.410640][ T8469] [ 70.413097][ T8469] ====================================================== [ 70.420313][ T8469] WARNING: possible circular locking dependency detected [ 70.427467][ T8469] 5.14.0-rc1-syzkaller #0 Not tainted [ 70.433067][ T8469] ------------------------------------------------------ [ 70.440065][ T8469] syz-execprog/8469 is trying to acquire lock: [ 70.446302][ T8469] ffffffff8ba9af80 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire+0xf7/0x160 [ 70.455263][ T8469] [ 70.455263][ T8469] but task is already holding lock: [ 70.462864][ T8469] ffff8880b9d4d580 (lock#2){-.-.}-{2:2}, at: __alloc_pages_bulk+0x4ad/0x1870 [ 70.471628][ T8469] [ 70.471628][ T8469] which lock already depends on the new lock. [ 70.471628][ T8469] [ 70.482097][ T8469] [ 70.482097][ T8469] the existing dependency chain (in reverse order) is: [ 70.491090][ T8469] [ 70.491090][ T8469] -> #1 (lock#2){-.-.}-{2:2}: [ 70.498023][ T8469] free_unref_page+0x1bf/0x690 [ 70.503491][ T8469] __mmdrop+0xcb/0x3f0 [ 70.508163][ T8469] finish_task_switch.isra.0+0x6da/0xa50 [ 70.514311][ T8469] __schedule+0x942/0x26f0 [ 70.519245][ T8469] preempt_schedule_irq+0x4e/0x90 [ 70.524969][ T8469] irqentry_exit+0x31/0x80 [ 70.529907][ T8469] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 70.536602][ T8469] lock_release+0x3f1/0x720 [ 70.541610][ T8469] __kmalloc_track_caller+0x59/0x320 [ 70.547403][ T8469] kstrdup+0x36/0x70 [ 70.551806][ T8469] kstrdup_const+0x53/0x80 [ 70.556732][ T8469] __kernfs_new_node+0x9d/0x8b0 [ 70.562101][ T8469] kernfs_new_node+0x93/0x120 [ 70.567283][ T8469] __kernfs_create_file+0x51/0x350 [ 70.573047][ T8469] cgroup_addrm_files+0x418/0xa00 [ 70.578576][ T8469] css_populate_dir+0x2f6/0x450 [ 70.584297][ T8469] cgroup_mkdir+0x351/0x10f0 [ 70.589391][ T8469] kernfs_iop_mkdir+0x146/0x1d0 [ 70.594743][ T8469] vfs_mkdir+0x52e/0x760 [ 70.599486][ T8469] do_mkdirat+0x284/0x310 [ 70.604316][ T8469] do_syscall_64+0x35/0xb0 [ 70.609234][ T8469] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.615708][ T8469] [ 70.615708][ T8469] -> #0 (fs_reclaim){+.+.}-{0:0}: [ 70.622892][ T8469] __lock_acquire+0x2a07/0x54a0 [ 70.628247][ T8469] lock_acquire+0x1ab/0x510 [ 70.633290][ T8469] fs_reclaim_acquire+0x117/0x160 [ 70.638819][ T8469] prepare_alloc_pages+0x15c/0x580 [ 70.645216][ T8469] __alloc_pages+0x12f/0x500 [ 70.650307][ T8469] alloc_pages+0x18c/0x2a0 [ 70.655315][ T8469] stack_depot_save+0x39d/0x4e0 [ 70.660681][ T8469] save_stack+0x15e/0x1e0 [ 70.665600][ T8469] __set_page_owner+0x50/0x290 [ 70.670888][ T8469] __alloc_pages_bulk+0x8b9/0x1870 [ 70.676501][ T8469] __vmalloc_node_range+0x39d/0x960 [ 70.682579][ T8469] vmalloc_user+0x67/0x80 [ 70.687418][ T8469] kcov_mmap+0x2b/0x140 [ 70.692271][ T8469] mmap_region+0xcde/0x1760 [ 70.697280][ T8469] do_mmap+0x86e/0x1180 [ 70.701954][ T8469] vm_mmap_pgoff+0x1b7/0x290 [ 70.707067][ T8469] ksys_mmap_pgoff+0x4a8/0x620 [ 70.712522][ T8469] do_syscall_64+0x35/0xb0 [ 70.717534][ T8469] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.723961][ T8469] [ 70.723961][ T8469] other info that might help us debug this: [ 70.723961][ T8469] [ 70.734611][ T8469] Possible unsafe locking scenario: [ 70.734611][ T8469] [ 70.742052][ T8469] CPU0 CPU1 [ 70.747402][ T8469] ---- ---- [ 70.752863][ T8469] lock(lock#2); [ 70.756481][ T8469] lock(fs_reclaim); [ 70.762959][ T8469] lock(lock#2); [ 70.769179][ T8469] lock(fs_reclaim); [ 70.773153][ T8469] [ 70.773153][ T8469] *** DEADLOCK *** [ 70.773153][ T8469] [ 70.781280][ T8469] 2 locks held by syz-execprog/8469: [ 70.786574][ T8469] #0: ffff88802215d528 (&mm->mmap_lock#2){++++}-{3:3}, at: vm_mmap_pgoff+0x15c/0x290 [ 70.796140][ T8469] #1: ffff8880b9d4d580 (lock#2){-.-.}-{2:2}, at: __alloc_pages_bulk+0x4ad/0x1870 [ 70.805529][ T8469] [ 70.805529][ T8469] stack backtrace: [ 70.811527][ T8469] CPU: 1 PID: 8469 Comm: syz-execprog Not tainted 5.14.0-rc1-syzkaller #0 [ 70.820003][ T8469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.830038][ T8469] Call Trace: [ 70.833307][ T8469] dump_stack_lvl+0xcd/0x134 [ 70.837973][ T8469] check_noncircular+0x25f/0x2e0 [ 70.842935][ T8469] ? print_circular_bug+0x1e0/0x1e0 [ 70.848115][ T8469] ? mark_lock+0xef/0x17b0 [ 70.852547][ T8469] ? lockdep_lock+0xc6/0x200 [ 70.857328][ T8469] ? call_rcu_zapped+0xb0/0xb0 [ 70.862197][ T8469] __lock_acquire+0x2a07/0x54a0 [ 70.867199][ T8469] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.873277][ T8469] lock_acquire+0x1ab/0x510 [ 70.877951][ T8469] ? fs_reclaim_acquire+0xf7/0x160 [ 70.883062][ T8469] ? lock_release+0x720/0x720 [ 70.887729][ T8469] ? find_held_lock+0x2d/0x110 [ 70.892873][ T8469] fs_reclaim_acquire+0x117/0x160 [ 70.897912][ T8469] ? fs_reclaim_acquire+0xf7/0x160 [ 70.903024][ T8469] prepare_alloc_pages+0x15c/0x580 [ 70.908131][ T8469] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.914192][ T8469] __alloc_pages+0x12f/0x500 [ 70.919175][ T8469] ? __alloc_pages_slowpath.constprop.0+0x21b0/0x21b0 [ 70.926162][ T8469] ? __kernel_text_address+0x9/0x30 [ 70.931423][ T8469] alloc_pages+0x18c/0x2a0 [ 70.935855][ T8469] stack_depot_save+0x39d/0x4e0 [ 70.941041][ T8469] save_stack+0x15e/0x1e0 [ 70.945378][ T8469] ? register_early_stack+0xb0/0xb0 [ 70.950565][ T8469] ? __alloc_pages_bulk+0x8b9/0x1870 [ 70.955895][ T8469] ? __vmalloc_node_range+0x39d/0x960 [ 70.961252][ T8469] ? vmalloc_user+0x67/0x80 [ 70.965741][ T8469] ? kcov_mmap+0x2b/0x140 [ 70.970053][ T8469] ? mmap_region+0xcde/0x1760 [ 70.974804][ T8469] ? do_mmap+0x86e/0x1180 [ 70.979215][ T8469] ? vm_mmap_pgoff+0x1b7/0x290 [ 70.983984][ T8469] ? ksys_mmap_pgoff+0x4a8/0x620 [ 70.988906][ T8469] ? do_syscall_64+0x35/0xb0 [ 70.993492][ T8469] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.999542][ T8469] ? lock_release+0x720/0x720 [ 71.004201][ T8469] ? preempt_count_add+0x74/0x140 [ 71.009226][ T8469] __set_page_owner+0x50/0x290 [ 71.014235][ T8469] ? post_alloc_hook+0x145/0x1e0 [ 71.019157][ T8469] __alloc_pages_bulk+0x8b9/0x1870 [ 71.025077][ T8469] ? __alloc_pages+0x500/0x500 [ 71.029820][ T8469] ? rcu_read_lock_sched_held+0x3a/0x70 [ 71.035434][ T8469] ? trace_kmalloc_node+0x32/0x100 [ 71.040526][ T8469] __vmalloc_node_range+0x39d/0x960 [ 71.045728][ T8469] ? vfree_atomic+0xe0/0xe0 [ 71.050225][ T8469] ? kcov_mmap+0x2b/0x140 [ 71.054563][ T8469] vmalloc_user+0x67/0x80 [ 71.058874][ T8469] ? kcov_mmap+0x2b/0x140 [ 71.063183][ T8469] kcov_mmap+0x2b/0x140 [ 71.067325][ T8469] ? memset+0x20/0x40 [ 71.071303][ T8469] mmap_region+0xcde/0x1760 [ 71.075815][ T8469] do_mmap+0x86e/0x1180 [ 71.079967][ T8469] vm_mmap_pgoff+0x1b7/0x290 [ 71.084669][ T8469] ? randomize_stack_top+0x100/0x100 [ 71.089951][ T8469] ? __fget_files+0x23d/0x3e0 [ 71.094791][ T8469] ksys_mmap_pgoff+0x4a8/0x620 [ 71.099543][ T8469] ? mlock_future_check+0x120/0x120 [ 71.104731][ T8469] ? syscall_enter_from_user_mode+0x21/0x70 [ 71.110624][ T8469] do_syscall_64+0x35/0xb0 [ 71.115045][ T8469] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.120947][ T8469] RIP: 0033:0x4b132a [ 71.124937][ T8469] Code: e8 db 57 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 4c 8b 54 24 28 4c 8b 44 24 30 4c 8b 4c 24 38 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 40 ff ff ff ff 48 c7 44 24 48 [ 71.144796][ T8469] RSP: 002b:000000c0000c3a10 EFLAGS: 00000202 ORIG_RAX: 0000000000000009 [ 71.153224][ T8469] RAX: ffffffffffffffda RBX: 000000c000020800 RCX: 00000000004b132a [ 71.161188][ T8469] RDX: 0000000000000003 RSI: 0000000000080000 RDI: 0000000000000000 [ 71.169242][ T8469] RBP: 000000c0000c3a70 R08: 0000000000000006 R09: 0000000000000000 [ 71.177366][ T8469] R10: 0000000000000001 R11: 0000000000000202 R12: 0000000000727f1a [ 71.185316][ T8469] R13: 0000000000000189 R14: 0000000000000200 R15: 0000000000000100 [ 71.193384][ T8469] BUG: sleeping function called from invalid context at mm/page_alloc.c:5167 [ 71.202129][ T8469] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 8469, name: syz-execprog [ 71.211298][ T8469] INFO: lockdep is turned off. [ 71.216030][ T8469] irq event stamp: 65538 [ 71.220248][ T8469] hardirqs last enabled at (65537): [] _raw_spin_unlock_irqrestore+0x50/0x70 [ 71.230657][ T8469] hardirqs last disabled at (65538): [] __alloc_pages_bulk+0x1017/0x1870 [ 71.240771][ T8469] softirqs last enabled at (63984): [] __irq_exit_rcu+0x16e/0x1c0 [ 71.250222][ T8469] softirqs last disabled at (63979): [] __irq_exit_rcu+0x16e/0x1c0 [ 71.259930][ T8469] CPU: 1 PID: 8469 Comm: syz-execprog Not tainted 5.14.0-rc1-syzkaller #0 [ 71.268619][ T8469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.278773][ T8469] Call Trace: [ 71.282062][ T8469] dump_stack_lvl+0xcd/0x134 [ 71.286731][ T8469] ___might_sleep.cold+0x1f1/0x237 [ 71.291828][ T8469] prepare_alloc_pages+0x3da/0x580 [ 71.296954][ T8469] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.303007][ T8469] __alloc_pages+0x12f/0x500 [ 71.307668][ T8469] ? __alloc_pages_slowpath.constprop.0+0x21b0/0x21b0 [ 71.314432][ T8469] ? __kernel_text_address+0x9/0x30 [ 71.319615][ T8469] alloc_pages+0x18c/0x2a0 [ 71.324049][ T8469] stack_depot_save+0x39d/0x4e0 [ 71.329063][ T8469] save_stack+0x15e/0x1e0 [ 71.333481][ T8469] ? register_early_stack+0xb0/0xb0 [ 71.338767][ T8469] ? __alloc_pages_bulk+0x8b9/0x1870 [ 71.344064][ T8469] ? __vmalloc_node_range+0x39d/0x960 [ 71.349449][ T8469] ? vmalloc_user+0x67/0x80 [ 71.354049][ T8469] ? kcov_mmap+0x2b/0x140 [ 71.358371][ T8469] ? mmap_region+0xcde/0x1760 [ 71.363040][ T8469] ? do_mmap+0x86e/0x1180 [ 71.367457][ T8469] ? vm_mmap_pgoff+0x1b7/0x290 [ 71.372401][ T8469] ? ksys_mmap_pgoff+0x4a8/0x620 [ 71.377340][ T8469] ? do_syscall_64+0x35/0xb0 [ 71.381918][ T8469] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.388424][ T8469] ? lock_release+0x720/0x720 [ 71.393098][ T8469] ? preempt_count_add+0x74/0x140 [ 71.398118][ T8469] __set_page_owner+0x50/0x290 [ 71.403313][ T8469] ? post_alloc_hook+0x145/0x1e0 [ 71.408364][ T8469] __alloc_pages_bulk+0x8b9/0x1870 [ 71.413694][ T8469] ? __alloc_pages+0x500/0x500 [ 71.418601][ T8469] ? rcu_read_lock_sched_held+0x3a/0x70 [ 71.424165][ T8469] ? trace_kmalloc_node+0x32/0x100 [ 71.431054][ T8469] __vmalloc_node_range+0x39d/0x960 [ 71.436461][ T8469] ? vfree_atomic+0xe0/0xe0 [ 71.441587][ T8469] ? kcov_mmap+0x2b/0x140 [ 71.445923][ T8469] vmalloc_user+0x67/0x80 [ 71.450432][ T8469] ? kcov_mmap+0x2b/0x140 [ 71.454768][ T8469] kcov_mmap+0x2b/0x140 [ 71.458907][ T8469] ? memset+0x20/0x40 [ 71.462910][ T8469] mmap_region+0xcde/0x1760 [ 71.467536][ T8469] do_mmap+0x86e/0x1180 [ 71.471781][ T8469] vm_mmap_pgoff+0x1b7/0x290 [ 71.476362][ T8469] ? randomize_stack_top+0x100/0x100 [ 71.481653][ T8469] ? __fget_files+0x23d/0x3e0 [ 71.486406][ T8469] ksys_mmap_pgoff+0x4a8/0x620 [ 71.491269][ T8469] ? mlock_future_check+0x120/0x120 [ 71.496661][ T8469] ? syscall_enter_from_user_mode+0x21/0x70 [ 71.502679][ T8469] do_syscall_64+0x35/0xb0 [ 71.507310][ T8469] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.514067][ T8469] RIP: 0033:0x4b132a [ 71.518186][ T8469] Code: e8 db 57 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 4c 8b 54 24 28 4c 8b 44 24 30 4c 8b 4c 24 38 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 40 ff ff ff ff 48 c7 44 24 48 [ 71.538139][ T8469] RSP: 002b:000000c0000c3a10 EFLAGS: 00000202 ORIG_RAX: 0000000000000009 [ 71.546642][ T8469] RAX: ffffffffffffffda RBX: 000000c000020800 RCX: 00000000004b132a [ 71.554775][ T8469] RDX: 0000000000000003 RSI: 0000000000080000 RDI: 0000000000000000 [ 71.563077][ T8469] RBP: 000000c0000c3a70 R08: 0000000000000006 R09: 0000000000000000 [ 71.571134][ T8469] R10: 0000000000000001 R11: 0000000000000202 R12: 0000000000727f1a [ 71.579728][ T8469] R13: 0000000000000189 R14: 0000000000000200 R15: 0000000000000100 2021/07/18 18:46:51 executed programs: 0 [ 73.110410][ T8488] chnl_net:caif_netlink_parms(): no params data found [ 73.145389][ T8488] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.152604][ T8488] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.160520][ T8488] device bridge_slave_0 entered promiscuous mode [ 73.168184][ T8488] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.175435][ T8488] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.183358][ T8488] device bridge_slave_1 entered promiscuous mode [ 73.198708][ T8488] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.209677][ T8488] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.226694][ T8488] team0: Port device team_slave_0 added [ 73.233607][ T8488] team0: Port device team_slave_1 added [ 73.246707][ T8488] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.254662][ T8488] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.283116][ T8488] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.295496][ T8488] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.303221][ T8488] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.330611][ T8488] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.352491][ T8488] device hsr_slave_0 entered promiscuous mode [ 73.359364][ T8488] device hsr_slave_1 entered promiscuous mode [ 73.422298][ T8488] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.430673][ T8488] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.439869][ T8488] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.449320][ T8488] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.466461][ T8488] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.473546][ T8488] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.480954][ T8488] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.488075][ T8488] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.516088][ T8488] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.528253][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.536941][ T2959] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.546576][ T2959] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.554702][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.566070][ T8488] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.575839][ T4885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.587222][ T4885] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.594459][ T4885] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.608875][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.617132][ T2959] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.624508][ T2959] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.642254][ T8488] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.652947][ T8488] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.665569][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.674661][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.684275][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.692837][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.701771][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.711645][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.728249][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.736376][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.746573][ T8488] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.762807][ T4885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.781357][ T8488] device veth0_vlan entered promiscuous mode [ 73.788230][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.796466][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.804427][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.815950][ T8488] device veth1_vlan entered promiscuous mode [ 73.832081][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.840294][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.848484][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.859494][ T8488] device veth0_macvtap entered promiscuous mode [ 73.868820][ T8488] device veth1_macvtap entered promiscuous mode [ 73.883029][ T8488] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.890837][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.900270][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.911213][ T8488] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.919250][ T2959] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.930463][ T8488] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.940110][ T8488] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.949489][ T8488] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.958698][ T8488] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.010753][ T978] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.019476][ T978] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.029553][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.047355][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.056055][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.065457][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.018546][ T5] Bluetooth: hci0: command 0x0409 tx timeout [ 77.097751][ T4885] Bluetooth: hci0: command 0x041b tx timeout 2021/07/18 18:46:56 executed programs: 4 [ 79.177593][ T4885] Bluetooth: hci0: command 0x040f tx timeout