[ 10.866770][ T249] ip (249) used greatest stack depth: 24440 bytes left [ 11.251147][ T253] ip (253) used greatest stack depth: 23984 bytes left [ 11.578625][ T258] br0: port 1(s0) entered blocking state [ 11.579168][ T258] br0: port 1(s0) entered disabled state [ 11.579836][ T258] s0: entered allmulticast mode [ 11.581208][ T258] s0: entered promiscuous mode [ 11.684527][ T259] bond0: (slave eth0): making interface the new active one [ 11.685218][ T259] bond0: (slave eth0): Enslaving as an active interface with an up link [ 11.686662][ T40] br0: port 1(s0) entered blocking state [ 11.686990][ T40] br0: port 1(s0) entered forwarding state [ 12.086351][ T263] br0: port 2(s1) entered blocking state [ 12.086758][ T263] br0: port 2(s1) entered disabled state [ 12.087098][ T263] s1: entered allmulticast mode [ 12.090563][ T263] s1: entered promiscuous mode [ 12.186794][ T264] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 12.187843][ T40] br0: port 2(s1) entered blocking state [ 12.188045][ T40] br0: port 2(s1) entered forwarding state [ 12.938220][ T275] br0: port 3(c0) entered blocking state [ 12.938490][ T275] br0: port 3(c0) entered disabled state [ 12.938732][ T275] c0: entered allmulticast mode [ 12.939999][ T275] c0: entered promiscuous mode [ 13.038500][ T70] br0: port 3(c0) entered blocking state [ 13.039020][ T70] br0: port 3(c0) entered forwarding state [ 13.607896][ T284] ip (284) used greatest stack depth: 23752 bytes left [ 13.977391][ T285] bond0 (unregistering): (slave eth0): Releasing backup interface [ 13.992481][ T285] bond0 (unregistering): (slave eth1): Releasing backup interface [ 14.012937][ T285] bond0 (unregistering): Released all slaves [ 14.023297][ T40] br0: port 1(s0) entered disabled state [ 14.025733][ T40] br0: port 2(s1) entered disabled state [ 14.296886][ T289] bond0: (slave eth0): making interface the new active one [ 14.297507][ T289] bond0: (slave eth0): Enslaving as an active interface with an up link [ 14.298199][ T40] br0: port 1(s0) entered blocking state [ 14.298449][ T40] br0: port 1(s0) entered forwarding state [ 14.380392][ T290] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 14.380980][ T44] br0: port 2(s1) entered blocking state [ 14.381277][ T44] br0: port 2(s1) entered forwarding state [ 16.178112][ T307] eth0: entered promiscuous mode [ 31.809953][ T353] eth0: left promiscuous mode [ 32.050010][ T354] [ 32.050244][ T354] ============================================ [ 32.050444][ T354] WARNING: possible recursive locking detected [ 32.050630][ T354] 6.13.0-rc5-virtme #1 Not tainted [ 32.050780][ T354] -------------------------------------------- [ 32.050962][ T354] ip/354 is trying to acquire lock: [ 32.051107][ T354] ffffffffa8df0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 32.051423][ T354] [ 32.051423][ T354] but task is already holding lock: [ 32.051638][ T354] ffffffffa8df0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 32.051938][ T354] [ 32.051938][ T354] other info that might help us debug this: [ 32.052155][ T354] Possible unsafe locking scenario: [ 32.052155][ T354] [ 32.052365][ T354] CPU0 [ 32.052479][ T354] ---- [ 32.052591][ T354] lock((netdev_chain).rwsem); [ 32.052740][ T354] lock((netdev_chain).rwsem); [ 32.052888][ T354] [ 32.052888][ T354] *** DEADLOCK *** [ 32.052888][ T354] [ 32.053109][ T354] May be due to missing lock nesting notation [ 32.053109][ T354] [ 32.053326][ T354] 2 locks held by ip/354: [ 32.053439][ T354] #0: ffffffffa8e01dc8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 32.053707][ T354] #1: ffffffffa8df0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 32.054005][ T354] [ 32.054005][ T354] stack backtrace: [ 32.054191][ T354] CPU: 0 UID: 0 PID: 354 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 32.054427][ T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.054610][ T354] Call Trace: [ 32.054725][ T354] [ 32.054804][ T354] dump_stack_lvl+0x82/0xd0 [ 32.054965][ T354] print_deadlock_bug+0x40a/0x650 [ 32.055117][ T354] validate_chain+0x5bf/0xae0 [ 32.055271][ T354] ? __pfx_validate_chain+0x10/0x10 [ 32.055420][ T354] ? hlock_class+0x4e/0x130 [ 32.055576][ T354] ? mark_lock+0x38/0x3e0 [ 32.055691][ T354] __lock_acquire+0xb9a/0x1680 [ 32.055850][ T354] lock_acquire.part.0+0xeb/0x330 [ 32.055997][ T354] ? blocking_notifier_call_chain+0x50/0x90 [ 32.056185][ T354] ? __kasan_slab_free+0x38/0x50 [ 32.056334][ T354] ? kmem_cache_free+0xf8/0x330 [ 32.056481][ T354] ? remove_proc_entry+0x18d/0x3e0 [ 32.056631][ T354] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 32.056782][ T354] ? trace_lock_acquire+0x14c/0x1f0 [ 32.056936][ T354] ? lock_acquire+0x32/0xc0 [ 32.057082][ T354] ? blocking_notifier_call_chain+0x50/0x90 [ 32.057262][ T354] down_read+0x9f/0x340 [ 32.057375][ T354] ? blocking_notifier_call_chain+0x50/0x90 [ 32.057560][ T354] ? __pfx_down_read+0x10/0x10 [ 32.057704][ T354] ? __debug_check_no_obj_freed+0x253/0x520 [ 32.057895][ T354] blocking_notifier_call_chain+0x50/0x90 [ 32.058040][ T354] __netdev_upper_dev_unlink+0xd9/0x220 [ 32.058184][ T354] ? mark_held_locks+0x9e/0xe0 [ 32.058329][ T354] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 32.058513][ T354] ? unregister_netdevice_queue+0x70/0x410 [ 32.058700][ T354] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 32.058879][ T354] ? remove_proc_entry+0x18d/0x3e0 [ 32.059025][ T354] netdev_upper_dev_unlink+0x71/0xa0 [ 32.059172][ T354] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 32.059352][ T354] macvlan_device_event+0x51b/0x7e0 [ 32.059499][ T354] ? __pfx_macvlan_device_event+0x10/0x10 [ 32.059645][ T354] ? bond_remove_proc_entry+0x10f/0x1a0 [ 32.059794][ T354] notifier_call_chain+0xcd/0x150 [ 32.059946][ T354] blocking_notifier_call_chain+0x66/0x90 [ 32.060091][ T354] unregister_netdevice_many_notify+0xa7b/0x1580 [ 32.060284][ T354] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 32.060463][ T354] ? rtnl_dellink+0x228/0xa40 [ 32.060611][ T354] ? __pfx___mutex_lock+0x10/0x10 [ 32.060760][ T354] ? rtnl_is_locked+0x15/0x20 [ 32.060908][ T354] ? unregister_netdevice_queue+0x70/0x410 [ 32.061097][ T354] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 32.061273][ T354] ? __nla_validate_parse+0x48/0x3d0 [ 32.061423][ T354] rtnl_dellink+0x348/0xa40 [ 32.061568][ T354] ? __pfx_rtnl_dellink+0x10/0x10 [ 32.061733][ T354] ? find_held_lock+0x2c/0x110 [ 32.061881][ T354] ? __lock_release+0x103/0x460 [ 32.062027][ T354] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 32.062172][ T354] ? __pfx___lock_release+0x10/0x10 [ 32.062320][ T354] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 32.062470][ T354] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 32.062621][ T354] ? __pfx_rtnl_dellink+0x10/0x10 [ 32.062768][ T354] rtnetlink_rcv_msg+0x712/0xc10 [ 32.062914][ T354] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 32.063058][ T354] ? hlock_class+0x4e/0x130 [ 32.063209][ T354] ? mark_lock+0x38/0x3e0 [ 32.063322][ T354] ? __lock_acquire+0xb9a/0x1680 [ 32.063468][ T354] netlink_rcv_skb+0x130/0x360 [ 32.063615][ T354] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 32.063762][ T354] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 32.063912][ T354] ? netlink_deliver_tap+0x13e/0x340 [ 32.064057][ T354] ? netlink_deliver_tap+0xc3/0x340 [ 32.064203][ T354] netlink_unicast+0x44b/0x710 [ 32.064353][ T354] ? __pfx_netlink_unicast+0x10/0x10 [ 32.064502][ T354] ? find_held_lock+0x2c/0x110 [ 32.064654][ T354] netlink_sendmsg+0x723/0xbe0 [ 32.064803][ T354] ? __pfx_netlink_sendmsg+0x10/0x10 [ 32.064953][ T354] ____sys_sendmsg+0x7ac/0xa10 [ 32.065101][ T354] ? __pfx_____sys_sendmsg+0x10/0x10 [ 32.065249][ T354] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 32.065432][ T354] ___sys_sendmsg+0xee/0x170 [ 32.065581][ T354] ? __pfx____sys_sendmsg+0x10/0x10 [ 32.065734][ T354] ? kasan_save_stack+0x34/0x50 [ 32.065881][ T354] ? kasan_save_stack+0x24/0x50 [ 32.066028][ T354] ? __kasan_record_aux_stack+0x8e/0xa0 [ 32.066176][ T354] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 32.066360][ T354] ? __x64_sys_close+0x7c/0xd0 [ 32.066512][ T354] ? do_syscall_64+0xc1/0x1d0 [ 32.066659][ T354] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 32.066848][ T354] ? __lock_acquire+0xb9a/0x1680 [ 32.066996][ T354] ? find_held_lock+0x2c/0x110 [ 32.067143][ T354] ? __lock_release+0x103/0x460 [ 32.067292][ T354] ? __virt_addr_valid+0x22b/0x430 [ 32.067441][ T354] ? __pfx___lock_release+0x10/0x10 [ 32.067592][ T354] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 32.067739][ T354] __sys_sendmsg+0x109/0x1a0 [ 32.067888][ T354] ? __pfx___sys_sendmsg+0x10/0x10 [ 32.068033][ T354] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 32.068225][ T354] do_syscall_64+0xc1/0x1d0 [ 32.068368][ T354] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 32.068551][ T354] RIP: 0033:0x7ffb87b1b9a7 [ 32.068704][ T354] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 32.069222][ T354] RSP: 002b:00007ffc7eefb9c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.069445][ T354] RAX: ffffffffffffffda RBX: 00007ffc7eefc100 RCX: 00007ffb87b1b9a7 [ 32.069666][ T354] RDX: 0000000000000000 RSI: 00007ffc7eefba30 RDI: 0000000000000005 [ 32.069889][ T354] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 32.070111][ T354] R10: 00007ffb879d94a8 R11: 0000000000000246 R12: 0000000000000001 [ 32.070343][ T354] R13: 00000000677902ad R14: 0000000000498600 R15: 0000000000000000 [ 32.070566][ T354] [ 32.107942][ T354] bond0 (unregistering): (slave eth0): Releasing backup interface [ 32.127392][ T354] bond0 (unregistering): (slave eth1): Releasing backup interface [ 32.156971][ T354] bond0 (unregistering): Released all slaves [ 32.163383][ T44] br0: port 1(s0) entered disabled state [ 32.164532][ T44] br0: port 2(s1) entered disabled state [ 32.363713][ T358] bond0: (slave eth0): making interface the new active one [ 32.364337][ T358] bond0: (slave eth0): Enslaving as an active interface with an up link [ 32.364815][ T70] br0: port 1(s0) entered blocking state [ 32.364979][ T70] br0: port 1(s0) entered forwarding state [ 32.432853][ T359] bond0: (slave eth1): Enslaving as an active interface with an up link [ 32.433569][ T40] br0: port 2(s1) entered blocking state [ 32.433863][ T40] br0: port 2(s1) entered forwarding state [ 34.871564][ T388] eth0: entered promiscuous mode [ 49.439610][ T434] eth0: left promiscuous mode [ 49.747429][ T435] bond0 (unregistering): (slave eth0): Releasing active interface [ 49.768301][ T435] bond0 (unregistering): (slave eth1): Releasing active interface [ 49.792103][ T435] bond0 (unregistering): Released all slaves [ 49.804278][ T40] br0: port 1(s0) entered disabled state [ 49.805399][ T40] br0: port 2(s1) entered disabled state [ 50.027751][ T439] bond0: (slave eth0): making interface the new active one [ 50.028574][ T439] bond0: (slave eth0): Enslaving as an active interface with an up link [ 50.029208][ T70] br0: port 1(s0) entered blocking state [ 50.029522][ T70] br0: port 1(s0) entered forwarding state [ 50.104011][ T440] bond0: (slave eth1): Enslaving as an active interface with an up link [ 50.104581][ T40] br0: port 2(s1) entered blocking state [ 50.104791][ T40] br0: port 2(s1) entered forwarding state [ 52.086767][ T463] eth0: entered promiscuous mode [ 66.835236][ T508] eth0: left promiscuous mode [ 66.977241][ T510] br0: port 3(c0) entered disabled state [ 67.084755][ T510] c0 (unregistering): left allmulticast mode [ 67.085048][ T510] c0 (unregistering): left promiscuous mode [ 67.085245][ T510] br0: port 3(c0) entered disabled state [ 67.354720][ T517] br0: port 1(s0) entered disabled state [ 67.408766][ T517] bond0: (slave eth0): Releasing active interface [ 67.409060][ T517] bond0: (slave eth0): the permanent HWaddr of slave - 02:cf:bd:84:7e:4c - is still in use by bond - set the HWaddr of slave to a different address to avoid conflicts [ 67.409622][ T517] bond0: (slave eth1): making interface the new active one [ 67.492335][ T517] s0 (unregistering): left allmulticast mode [ 67.492640][ T517] s0 (unregistering): left promiscuous mode [ 67.492869][ T517] br0: port 1(s0) entered disabled state [ 67.563222][ T518] br0: port 2(s1) entered disabled state [ 67.616716][ T518] bond0: (slave eth1): Releasing active interface [ 67.714769][ T518] s1 (unregistering): left allmulticast mode [ 67.715057][ T518] s1 (unregistering): left promiscuous mode [ 67.715253][ T518] br0: port 2(s1) entered disabled state [ 68.003918][ T265] bond0 (unregistering): Released all slaves