[ 11.202589][ T254] ip (254) used greatest stack depth: 24280 bytes left [ 11.537224][ T259] br0: port 1(s0) entered blocking state [ 11.537560][ T259] br0: port 1(s0) entered disabled state [ 11.538035][ T259] s0: entered allmulticast mode [ 11.539287][ T259] s0: entered promiscuous mode [ 11.635418][ T260] bond0: (slave eth0): making interface the new active one [ 11.636665][ T260] bond0: (slave eth0): Enslaving as an active interface with an up link [ 11.637951][ T40] br0: port 1(s0) entered blocking state [ 11.638333][ T40] br0: port 1(s0) entered forwarding state [ 12.032265][ T264] br0: port 2(s1) entered blocking state [ 12.032473][ T264] br0: port 2(s1) entered disabled state [ 12.032667][ T264] s1: entered allmulticast mode [ 12.033793][ T264] s1: entered promiscuous mode [ 12.124408][ T265] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 12.125503][ T45] br0: port 2(s1) entered blocking state [ 12.125685][ T45] br0: port 2(s1) entered forwarding state [ 12.670866][ T271] ip (271) used greatest stack depth: 23296 bytes left [ 12.814368][ T273] br0: port 3(c0) entered blocking state [ 12.814678][ T273] br0: port 3(c0) entered disabled state [ 12.814893][ T273] c0: entered allmulticast mode [ 12.816086][ T273] c0: entered promiscuous mode [ 12.898718][ T41] br0: port 3(c0) entered blocking state [ 12.898928][ T41] br0: port 3(c0) entered forwarding state [ 13.874257][ T283] bond0 (unregistering): (slave eth0): Releasing backup interface [ 13.888170][ T283] bond0 (unregistering): (slave eth1): Releasing backup interface [ 13.909224][ T283] bond0 (unregistering): Released all slaves [ 13.919437][ T41] br0: port 1(s0) entered disabled state [ 13.922530][ T41] br0: port 2(s1) entered disabled state [ 14.197339][ T289] bond0: (slave eth0): making interface the new active one [ 14.197923][ T289] bond0: (slave eth0): Enslaving as an active interface with an up link [ 14.198547][ T41] br0: port 1(s0) entered blocking state [ 14.198800][ T41] br0: port 1(s0) entered forwarding state [ 14.276488][ T290] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 14.277188][ T45] br0: port 2(s1) entered blocking state [ 14.277471][ T45] br0: port 2(s1) entered forwarding state [ 15.996411][ T307] eth0: entered promiscuous mode [ 26.315483][ T352] eth0: left promiscuous mode [ 26.728176][ T353] bond0 (unregistering): (slave eth0): Releasing backup interface [ 26.756993][ T353] bond0 (unregistering): (slave eth1): Releasing backup interface [ 26.774126][ T353] bond0 (unregistering): Released all slaves [ 26.782340][ T41] br0: port 1(s0) entered disabled state [ 26.783887][ T41] br0: port 2(s1) entered disabled state [ 27.038517][ T357] bond0: (slave eth0): making interface the new active one [ 27.039587][ T357] bond0: (slave eth0): Enslaving as an active interface with an up link [ 27.040175][ T45] br0: port 1(s0) entered blocking state [ 27.040400][ T45] br0: port 1(s0) entered forwarding state [ 27.114319][ T358] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 27.114911][ T41] br0: port 2(s1) entered blocking state [ 27.115111][ T41] br0: port 2(s1) entered forwarding state [ 29.382426][ T63] [ 29.382645][ T63] ============================= [ 29.382802][ T63] WARNING: suspicious RCU usage [ 29.382955][ T63] 6.14.0-rc6-virtme #1 Not tainted [ 29.383131][ T63] ----------------------------- [ 29.383285][ T63] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 29.383544][ T63] [ 29.383544][ T63] other info that might help us debug this: [ 29.383544][ T63] [ 29.383835][ T63] [ 29.383835][ T63] rcu_scheduler_active = 2, debug_locks = 1 [ 29.384061][ T63] 3 locks held by kworker/1:1/63: [ 29.384225][ T63] #0: ffff8880010a9548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 29.384544][ T63] #1: ffffc90000447d40 ((work_completion)(&port->wq)){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 29.384849][ T63] #2: ffffffff8bd5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 29.385140][ T63] [ 29.385140][ T63] stack backtrace: [ 29.385352][ T63] CPU: 1 UID: 0 PID: 63 Comm: kworker/1:1 Not tainted 6.14.0-rc6-virtme #1 [ 29.385356][ T63] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.385359][ T63] Workqueue: events ipvlan_process_multicast [ 29.385367][ T63] Call Trace: [ 29.385369][ T63] [ 29.385372][ T63] dump_stack_lvl+0xb0/0xd0 [ 29.385380][ T63] lockdep_rcu_suspicious+0x1ea/0x280 [ 29.385393][ T63] dev_hard_start_xmit+0x2fc/0x3f0 [ 29.385405][ T63] __dev_queue_xmit+0xef9/0x1850 [ 29.385420][ T63] ? __pfx___dev_queue_xmit+0x10/0x10 [ 29.385424][ T63] ? find_held_lock+0x2c/0x110 [ 29.385431][ T63] ? __lock_release+0x103/0x460 [ 29.385434][ T63] ? ipvlan_process_multicast+0x746/0xc70 [ 29.385438][ T63] ? __pfx___lock_release+0x10/0x10 [ 29.385442][ T63] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 29.385454][ T63] ? ipvlan_process_multicast+0x746/0xc70 [ 29.385462][ T63] ipvlan_process_multicast+0x8c9/0xc70 [ 29.385478][ T63] ? __pfx_ipvlan_process_multicast+0x10/0x10 [ 29.385484][ T63] ? __pfx___lock_release+0x10/0x10 [ 29.385488][ T63] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 29.385493][ T63] ? trace_lock_acquire+0x14c/0x1f0 [ 29.385496][ T63] ? trace_lock_acquire+0x14c/0x1f0 [ 29.385503][ T63] ? lock_acquire+0x32/0xc0 [ 29.385511][ T63] ? process_one_work+0xe55/0x16d0 [ 29.385514][ T63] ? process_one_work+0xe0b/0x16d0 [ 29.385517][ T63] process_one_work+0xe55/0x16d0 [ 29.385530][ T63] ? __pfx___lock_release+0x10/0x10 [ 29.385535][ T63] ? __pfx_process_one_work+0x10/0x10 [ 29.385548][ T63] ? assign_work+0x16c/0x240 [ 29.385557][ T63] worker_thread+0x58c/0xce0 [ 29.385562][ T63] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 29.385573][ T63] ? __pfx_worker_thread+0x10/0x10 [ 29.385580][ T63] kthread+0x359/0x5d0 [ 29.385586][ T63] ? __pfx_kthread+0x10/0x10 [ 29.385596][ T63] ? __pfx_kthread+0x10/0x10 [ 29.385602][ T63] ret_from_fork+0x31/0x70 [ 29.385607][ T63] ? __pfx_kthread+0x10/0x10 [ 29.385611][ T63] ret_from_fork_asm+0x1a/0x30 [ 29.385634][ T63] [ 40.208597][ T427] bond0 (unregistering): (slave eth0): Releasing backup interface [ 40.229063][ T427] bond0 (unregistering): (slave eth1): Releasing backup interface [ 40.248309][ T427] bond0 (unregistering): Released all slaves [ 40.263270][ T45] br0: port 1(s0) entered disabled state [ 40.264349][ T45] br0: port 2(s1) entered disabled state [ 40.514096][ T431] bond0: (slave eth0): making interface the new active one [ 40.515001][ T431] bond0: (slave eth0): Enslaving as an active interface with an up link [ 40.516551][ T45] br0: port 1(s0) entered blocking state [ 40.516743][ T45] br0: port 1(s0) entered forwarding state [ 40.608282][ T432] bond0: (slave eth1): Enslaving as an active interface with an up link [ 40.609208][ T40] br0: port 2(s1) entered blocking state [ 40.609426][ T40] br0: port 2(s1) entered forwarding state [ 42.274756][ T449] eth0: entered promiscuous mode [ 52.605235][ T494] eth0: left promiscuous mode [ 53.052568][ T495] bond0 (unregistering): (slave eth0): Releasing active interface [ 53.071816][ T495] bond0 (unregistering): (slave eth1): Releasing active interface [ 53.091712][ T495] bond0 (unregistering): Released all slaves [ 53.105359][ T41] br0: port 1(s0) entered disabled state [ 53.106718][ T41] br0: port 2(s1) entered disabled state [ 53.387669][ T499] bond0: (slave eth0): making interface the new active one [ 53.388693][ T499] bond0: (slave eth0): Enslaving as an active interface with an up link [ 53.389498][ T39] br0: port 1(s0) entered blocking state [ 53.389760][ T39] br0: port 1(s0) entered forwarding state [ 53.502014][ T500] bond0: (slave eth1): Enslaving as an active interface with an up link [ 53.502627][ T40] br0: port 2(s1) entered blocking state [ 53.502818][ T40] br0: port 2(s1) entered forwarding state [ 66.085268][ T563] bond0 (unregistering): (slave eth0): Releasing active interface [ 66.107461][ T563] bond0 (unregistering): (slave eth1): Releasing active interface [ 66.130981][ T563] bond0 (unregistering): Released all slaves [ 66.146136][ T40] br0: port 1(s0) entered disabled state [ 66.147468][ T40] br0: port 2(s1) entered disabled state [ 66.400783][ T567] bond0: (slave eth0): making interface the new active one [ 66.402613][ T567] bond0: (slave eth0): Enslaving as an active interface with an up link [ 66.403178][ T41] br0: port 1(s0) entered blocking state [ 66.403409][ T41] br0: port 1(s0) entered forwarding state [ 66.506924][ T568] bond0: (slave eth1): Enslaving as an active interface with an up link [ 66.507713][ T40] br0: port 2(s1) entered blocking state [ 66.507943][ T40] br0: port 2(s1) entered forwarding state [ 68.587768][ T588] eth0: entered promiscuous mode [ 78.966922][ T633] eth0: left promiscuous mode [ 79.364425][ T634] bond0 (unregistering): (slave eth0): Releasing active interface [ 79.383335][ T634] bond0 (unregistering): (slave eth1): Releasing active interface [ 79.413501][ T634] bond0 (unregistering): Released all slaves [ 79.421452][ T41] br0: port 1(s0) entered disabled state [ 79.423296][ T41] br0: port 2(s1) entered disabled state [ 79.712176][ T638] bond0: (slave eth0): making interface the new active one [ 79.713103][ T638] bond0: (slave eth0): Enslaving as an active interface with an up link [ 79.713669][ T41] br0: port 1(s0) entered blocking state [ 79.713898][ T41] br0: port 1(s0) entered forwarding state [ 79.825027][ T639] bond0: (slave eth1): Enslaving as an active interface with an up link [ 79.826001][ T45] br0: port 2(s1) entered blocking state [ 79.826382][ T45] br0: port 2(s1) entered forwarding state [ 91.574356][ T698] br0: port 3(c0) entered disabled state [ 91.734129][ T698] c0 (unregistering): left allmulticast mode [ 91.734522][ T698] c0 (unregistering): left promiscuous mode [ 91.734865][ T698] br0: port 3(c0) entered disabled state [ 92.068523][ T705] br0: port 1(s0) entered disabled state [ 92.144624][ T705] bond0: (slave eth0): Releasing active interface [ 92.144954][ T705] bond0: (slave eth0): the permanent HWaddr of slave - 3e:03:31:0a:6c:1d - is still in use by bond - set the HWaddr of slave to a different address to avoid conflicts [ 92.145641][ T705] bond0: (slave eth1): making interface the new active one [ 92.263002][ T705] s0 (unregistering): left allmulticast mode [ 92.263311][ T705] s0 (unregistering): left promiscuous mode [ 92.263524][ T705] br0: port 1(s0) entered disabled state [ 92.364023][ T706] br0: port 2(s1) entered disabled state [ 92.450807][ T706] bond0: (slave eth1): Releasing active interface [ 92.564801][ T706] s1 (unregistering): left allmulticast mode [ 92.565171][ T706] s1 (unregistering): left promiscuous mode [ 92.565411][ T706] br0: port 2(s1) entered disabled state [ 93.045612][ T284] bond0 (unregistering): Released all slaves