[ 12.332996][ T258] br0: port 1(s0) entered blocking state [ 12.333747][ T258] br0: port 1(s0) entered disabled state [ 12.334122][ T258] s0: entered allmulticast mode [ 12.335438][ T258] s0: entered promiscuous mode [ 12.419497][ T259] bond0: (slave eth0): making interface the new active one [ 12.420126][ T259] bond0: (slave eth0): Enslaving as an active interface with an up link [ 12.421756][ T46] br0: port 1(s0) entered blocking state [ 12.422132][ T46] br0: port 1(s0) entered forwarding state [ 12.851842][ T264] br0: port 2(s1) entered blocking state [ 12.852085][ T264] br0: port 2(s1) entered disabled state [ 12.852313][ T264] s1: entered allmulticast mode [ 12.853524][ T264] s1: entered promiscuous mode [ 12.942217][ T265] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 12.943357][ T40] br0: port 2(s1) entered blocking state [ 12.943570][ T40] br0: port 2(s1) entered forwarding state [ 13.763215][ T273] br0: port 3(c0) entered blocking state [ 13.763571][ T273] br0: port 3(c0) entered disabled state [ 13.763890][ T273] c0: entered allmulticast mode [ 13.765983][ T273] c0: entered promiscuous mode [ 13.879931][ T40] br0: port 3(c0) entered blocking state [ 13.880160][ T40] br0: port 3(c0) entered forwarding state [ 14.793005][ T283] bond0 (unregistering): (slave eth0): Releasing backup interface [ 14.817969][ T283] bond0 (unregistering): (slave eth1): Releasing backup interface [ 14.837820][ T283] bond0 (unregistering): Released all slaves [ 14.858983][ T137] br0: port 1(s0) entered disabled state [ 14.862029][ T137] br0: port 2(s1) entered disabled state [ 15.146044][ T288] bond0: (slave eth0): making interface the new active one [ 15.146746][ T288] bond0: (slave eth0): Enslaving as an active interface with an up link [ 15.147392][ T46] br0: port 1(s0) entered blocking state [ 15.147598][ T46] br0: port 1(s0) entered forwarding state [ 15.243949][ T289] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 15.244647][ T40] br0: port 2(s1) entered blocking state [ 15.244904][ T40] br0: port 2(s1) entered forwarding state [ 17.760861][ T312] eth0: entered promiscuous mode [ 28.565820][ T357] eth0: left promiscuous mode [ 29.002643][ T358] bond0 (unregistering): (slave eth0): Releasing backup interface [ 29.019847][ T358] bond0 (unregistering): (slave eth1): Releasing backup interface [ 29.047738][ T358] bond0 (unregistering): Released all slaves [ 29.062461][ T40] br0: port 1(s0) entered disabled state [ 29.064000][ T40] br0: port 2(s1) entered disabled state [ 29.332420][ T363] bond0: (slave eth0): making interface the new active one [ 29.333083][ T363] bond0: (slave eth0): Enslaving as an active interface with an up link [ 29.333753][ T40] br0: port 1(s0) entered blocking state [ 29.334007][ T40] br0: port 1(s0) entered forwarding state [ 29.423460][ T364] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 29.424078][ T40] br0: port 2(s1) entered blocking state [ 29.424299][ T40] br0: port 2(s1) entered forwarding state [ 32.007791][ T51] [ 32.008063][ T51] ============================= [ 32.008229][ T51] WARNING: suspicious RCU usage [ 32.008415][ T51] 6.14.0-rc6-virtme #1 Not tainted [ 32.008587][ T51] ----------------------------- [ 32.008747][ T51] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 32.009022][ T51] [ 32.009022][ T51] other info that might help us debug this: [ 32.009022][ T51] [ 32.009344][ T51] [ 32.009344][ T51] rcu_scheduler_active = 2, debug_locks = 1 [ 32.009729][ T51] 3 locks held by kworker/1:1/51: [ 32.009896][ T51] #0: ffff8880010a9548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 32.010230][ T51] #1: ffffc9000037fd40 ((work_completion)(&port->wq)){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 32.010606][ T51] #2: ffffffff9415b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 32.010891][ T51] [ 32.010891][ T51] stack backtrace: [ 32.011093][ T51] CPU: 1 UID: 0 PID: 51 Comm: kworker/1:1 Not tainted 6.14.0-rc6-virtme #1 [ 32.011098][ T51] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.011101][ T51] Workqueue: events ipvlan_process_multicast [ 32.011110][ T51] Call Trace: [ 32.011112][ T51] [ 32.011116][ T51] dump_stack_lvl+0xb0/0xd0 [ 32.011124][ T51] lockdep_rcu_suspicious+0x1ea/0x280 [ 32.011137][ T51] dev_hard_start_xmit+0x2fc/0x3f0 [ 32.011149][ T51] __dev_queue_xmit+0xef9/0x1850 [ 32.011165][ T51] ? __pfx___dev_queue_xmit+0x10/0x10 [ 32.011168][ T51] ? find_held_lock+0x2c/0x110 [ 32.011176][ T51] ? __lock_release+0x103/0x460 [ 32.011178][ T51] ? ipvlan_process_multicast+0x746/0xc70 [ 32.011183][ T51] ? __pfx___lock_release+0x10/0x10 [ 32.011186][ T51] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 32.011199][ T51] ? ipvlan_process_multicast+0x746/0xc70 [ 32.011207][ T51] ipvlan_process_multicast+0x8c9/0xc70 [ 32.011223][ T51] ? __pfx_ipvlan_process_multicast+0x10/0x10 [ 32.011229][ T51] ? __pfx___lock_release+0x10/0x10 [ 32.011233][ T51] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 32.011238][ T51] ? trace_lock_acquire+0x14c/0x1f0 [ 32.011241][ T51] ? trace_lock_acquire+0x14c/0x1f0 [ 32.011248][ T51] ? lock_acquire+0x32/0xc0 [ 32.011256][ T51] ? process_one_work+0xe55/0x16d0 [ 32.011259][ T51] ? process_one_work+0xe0b/0x16d0 [ 32.011262][ T51] process_one_work+0xe55/0x16d0 [ 32.011275][ T51] ? __pfx___lock_release+0x10/0x10 [ 32.011280][ T51] ? __pfx_process_one_work+0x10/0x10 [ 32.011296][ T51] ? assign_work+0x16c/0x240 [ 32.011305][ T51] worker_thread+0x58c/0xce0 [ 32.011310][ T51] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 32.011321][ T51] ? __pfx_worker_thread+0x10/0x10 [ 32.011328][ T51] kthread+0x359/0x5d0 [ 32.011334][ T51] ? __pfx_kthread+0x10/0x10 [ 32.011343][ T51] ? __pfx_kthread+0x10/0x10 [ 32.011349][ T51] ret_from_fork+0x31/0x70 [ 32.011354][ T51] ? __pfx_kthread+0x10/0x10 [ 32.011358][ T51] ret_from_fork_asm+0x1a/0x30 [ 32.011380][ T51] [ 32.301064][ T390] ip (390) used greatest stack depth: 23528 bytes left [ 43.299013][ T434] bond0 (unregistering): (slave eth0): Releasing backup interface [ 43.320579][ T434] bond0 (unregistering): (slave eth1): Releasing backup interface [ 43.336380][ T434] bond0 (unregistering): Released all slaves [ 43.351688][ T46] br0: port 1(s0) entered disabled state [ 43.353279][ T46] br0: port 2(s1) entered disabled state [ 43.633036][ T438] bond0: (slave eth0): making interface the new active one [ 43.633881][ T438] bond0: (slave eth0): Enslaving as an active interface with an up link [ 43.634652][ T137] br0: port 1(s0) entered blocking state [ 43.634848][ T137] br0: port 1(s0) entered forwarding state [ 43.722174][ T439] bond0: (slave eth1): Enslaving as an active interface with an up link [ 43.723337][ T137] br0: port 2(s1) entered blocking state [ 43.723671][ T137] br0: port 2(s1) entered forwarding state [ 45.668548][ T456] eth0: entered promiscuous mode [ 56.288126][ T501] eth0: left promiscuous mode [ 56.715847][ T502] bond0 (unregistering): (slave eth0): Releasing active interface [ 56.735582][ T502] bond0 (unregistering): (slave eth1): Releasing active interface [ 56.753665][ T502] bond0 (unregistering): Released all slaves [ 56.775359][ T46] br0: port 1(s0) entered disabled state [ 56.777993][ T46] br0: port 2(s1) entered disabled state [ 57.036557][ T506] bond0: (slave eth0): making interface the new active one [ 57.037242][ T506] bond0: (slave eth0): Enslaving as an active interface with an up link [ 57.037935][ T137] br0: port 1(s0) entered blocking state [ 57.038171][ T137] br0: port 1(s0) entered forwarding state [ 57.133554][ T507] bond0: (slave eth1): Enslaving as an active interface with an up link [ 57.134573][ T137] br0: port 2(s1) entered blocking state [ 57.134830][ T137] br0: port 2(s1) entered forwarding state [ 70.246179][ T570] bond0 (unregistering): (slave eth0): Releasing active interface [ 70.268530][ T570] bond0 (unregistering): (slave eth1): Releasing active interface [ 70.286867][ T570] bond0 (unregistering): Released all slaves [ 70.312100][ T40] br0: port 1(s0) entered disabled state [ 70.313939][ T40] br0: port 2(s1) entered disabled state [ 70.594502][ T574] bond0: (slave eth0): making interface the new active one [ 70.595471][ T574] bond0: (slave eth0): Enslaving as an active interface with an up link [ 70.596026][ T46] br0: port 1(s0) entered blocking state [ 70.596210][ T46] br0: port 1(s0) entered forwarding state [ 70.692244][ T575] bond0: (slave eth1): Enslaving as an active interface with an up link [ 70.692938][ T137] br0: port 2(s1) entered blocking state [ 70.693229][ T137] br0: port 2(s1) entered forwarding state [ 72.556608][ T592] eth0: entered promiscuous mode [ 83.421090][ T637] eth0: left promiscuous mode [ 83.859049][ T638] bond0 (unregistering): (slave eth0): Releasing active interface [ 83.888692][ T638] bond0 (unregistering): (slave eth1): Releasing active interface [ 83.912377][ T638] bond0 (unregistering): Released all slaves [ 83.921052][ T46] br0: port 1(s0) entered disabled state [ 83.922732][ T46] br0: port 2(s1) entered disabled state [ 83.951684][ T638] ip (638) used greatest stack depth: 23392 bytes left [ 84.191754][ T642] bond0: (slave eth0): making interface the new active one [ 84.192697][ T642] bond0: (slave eth0): Enslaving as an active interface with an up link [ 84.193262][ T46] br0: port 1(s0) entered blocking state [ 84.193480][ T46] br0: port 1(s0) entered forwarding state [ 84.291742][ T643] bond0: (slave eth1): Enslaving as an active interface with an up link [ 84.292760][ T40] br0: port 2(s1) entered blocking state [ 84.293061][ T40] br0: port 2(s1) entered forwarding state [ 97.096943][ T705] br0: port 3(c0) entered disabled state [ 97.252054][ T705] c0 (unregistering): left allmulticast mode [ 97.252456][ T705] c0 (unregistering): left promiscuous mode [ 97.252678][ T705] br0: port 3(c0) entered disabled state [ 97.624670][ T712] br0: port 1(s0) entered disabled state [ 97.698202][ T712] bond0: (slave eth0): Releasing active interface [ 97.698573][ T712] bond0: (slave eth0): the permanent HWaddr of slave - 12:74:6e:7c:23:b1 - is still in use by bond - set the HWaddr of slave to a different address to avoid conflicts [ 97.699345][ T712] bond0: (slave eth1): making interface the new active one [ 97.828535][ T712] s0 (unregistering): left allmulticast mode [ 97.829018][ T712] s0 (unregistering): left promiscuous mode [ 97.829416][ T712] br0: port 1(s0) entered disabled state [ 97.954027][ T713] br0: port 2(s1) entered disabled state [ 98.031954][ T713] bond0: (slave eth1): Releasing active interface [ 98.149063][ T713] s1 (unregistering): left allmulticast mode [ 98.149425][ T713] s1 (unregistering): left promiscuous mode [ 98.149644][ T713] br0: port 2(s1) entered disabled state [ 98.586185][ T67] bond0 (unregistering): Released all slaves