[ 11.349216][ T260] br0: port 1(s0) entered blocking state [ 11.349832][ T260] br0: port 1(s0) entered disabled state [ 11.350394][ T260] s0: entered allmulticast mode [ 11.351717][ T260] s0: entered promiscuous mode [ 11.455768][ T261] bond0: (slave eth0): making interface the new active one [ 11.456897][ T261] bond0: (slave eth0): Enslaving as an active interface with an up link [ 11.458829][ T46] br0: port 1(s0) entered blocking state [ 11.459143][ T46] br0: port 1(s0) entered forwarding state [ 11.906202][ T265] br0: port 2(s1) entered blocking state [ 11.906499][ T265] br0: port 2(s1) entered disabled state [ 11.906741][ T265] s1: entered allmulticast mode [ 11.907999][ T265] s1: entered promiscuous mode [ 12.002815][ T266] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 12.004605][ T41] br0: port 2(s1) entered blocking state [ 12.004926][ T41] br0: port 2(s1) entered forwarding state [ 12.765689][ T276] br0: port 3(c0) entered blocking state [ 12.765919][ T276] br0: port 3(c0) entered disabled state [ 12.766152][ T276] c0: entered allmulticast mode [ 12.767413][ T276] c0: entered promiscuous mode [ 12.854553][ T40] br0: port 3(c0) entered blocking state [ 12.854793][ T40] br0: port 3(c0) entered forwarding state [ 13.894604][ T286] bond0 (unregistering): (slave eth0): Releasing backup interface [ 13.912700][ T286] bond0 (unregistering): (slave eth1): Releasing backup interface [ 13.936476][ T286] bond0 (unregistering): Released all slaves [ 13.947403][ T46] br0: port 1(s0) entered disabled state [ 13.949617][ T46] br0: port 2(s1) entered disabled state [ 14.247018][ T291] bond0: (slave eth0): making interface the new active one [ 14.248626][ T291] bond0: (slave eth0): Enslaving as an active interface with an up link [ 14.249398][ T46] br0: port 1(s0) entered blocking state [ 14.249665][ T46] br0: port 1(s0) entered forwarding state [ 14.349761][ T292] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 14.350466][ T40] br0: port 2(s1) entered blocking state [ 14.350699][ T40] br0: port 2(s1) entered forwarding state [ 16.523839][ T312] eth0: entered promiscuous mode [ 27.167819][ T357] eth0: left promiscuous mode [ 27.601968][ T358] bond0 (unregistering): (slave eth0): Releasing backup interface [ 27.629245][ T358] bond0 (unregistering): (slave eth1): Releasing backup interface [ 27.651423][ T358] bond0 (unregistering): Released all slaves [ 27.660063][ T46] br0: port 1(s0) entered disabled state [ 27.661711][ T46] br0: port 2(s1) entered disabled state [ 27.692632][ T358] ip (358) used greatest stack depth: 23392 bytes left [ 27.944803][ T362] bond0: (slave eth0): making interface the new active one [ 27.945486][ T362] bond0: (slave eth0): Enslaving as an active interface with an up link [ 27.946010][ T40] br0: port 1(s0) entered blocking state [ 27.946226][ T40] br0: port 1(s0) entered forwarding state [ 28.031940][ T363] bond0: (slave eth1): Enslaving as a backup interface with an up link [ 28.033223][ T274] br0: port 2(s1) entered blocking state [ 28.033406][ T274] br0: port 2(s1) entered forwarding state [ 29.486683][ T10] [ 29.487018][ T10] ============================= [ 29.487187][ T10] WARNING: suspicious RCU usage [ 29.487348][ T10] 6.14.0-rc6-virtme #1 Not tainted [ 29.487494][ T10] ----------------------------- [ 29.487639][ T10] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 29.487945][ T10] [ 29.487945][ T10] other info that might help us debug this: [ 29.487945][ T10] [ 29.488299][ T10] [ 29.488299][ T10] rcu_scheduler_active = 2, debug_locks = 1 [ 29.488626][ T10] 3 locks held by kworker/0:1/10: [ 29.488864][ T10] #0: ffff8880010a9548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 29.489269][ T10] #1: ffffc900000a7d40 ((work_completion)(&port->wq)){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 29.489636][ T10] #2: ffffffff9ad5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 29.489946][ T10] [ 29.489946][ T10] stack backtrace: [ 29.490181][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.14.0-rc6-virtme #1 [ 29.490185][ T10] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.490188][ T10] Workqueue: events ipvlan_process_multicast [ 29.490202][ T10] Call Trace: [ 29.490206][ T10] [ 29.490210][ T10] dump_stack_lvl+0xb0/0xd0 [ 29.490223][ T10] lockdep_rcu_suspicious+0x1ea/0x280 [ 29.490239][ T10] dev_hard_start_xmit+0x2fc/0x3f0 [ 29.490251][ T10] __dev_queue_xmit+0xef9/0x1850 [ 29.490267][ T10] ? __pfx___dev_queue_xmit+0x10/0x10 [ 29.490270][ T10] ? find_held_lock+0x2c/0x110 [ 29.490278][ T10] ? __lock_release+0x103/0x460 [ 29.490281][ T10] ? ipvlan_process_multicast+0x746/0xc70 [ 29.490285][ T10] ? __pfx___lock_release+0x10/0x10 [ 29.490289][ T10] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 29.490304][ T10] ? ipvlan_process_multicast+0x746/0xc70 [ 29.490317][ T10] ipvlan_process_multicast+0x8c9/0xc70 [ 29.490341][ T10] ? __pfx_ipvlan_process_multicast+0x10/0x10 [ 29.490347][ T10] ? __pfx___lock_release+0x10/0x10 [ 29.490352][ T10] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 29.490357][ T10] ? trace_lock_acquire+0x14c/0x1f0 [ 29.490360][ T10] ? trace_lock_acquire+0x14c/0x1f0 [ 29.490368][ T10] ? lock_acquire+0x32/0xc0 [ 29.490376][ T10] ? process_one_work+0xe55/0x16d0 [ 29.490380][ T10] ? process_one_work+0xe0b/0x16d0 [ 29.490383][ T10] process_one_work+0xe55/0x16d0 [ 29.490396][ T10] ? __pfx___lock_release+0x10/0x10 [ 29.490401][ T10] ? __pfx_process_one_work+0x10/0x10 [ 29.490414][ T10] ? assign_work+0x16c/0x240 [ 29.490423][ T10] worker_thread+0x58c/0xce0 [ 29.490428][ T10] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 29.490439][ T10] ? __pfx_worker_thread+0x10/0x10 [ 29.490446][ T10] kthread+0x359/0x5d0 [ 29.490452][ T10] ? __pfx_kthread+0x10/0x10 [ 29.490462][ T10] ? __pfx_kthread+0x10/0x10 [ 29.490468][ T10] ret_from_fork+0x31/0x70 [ 29.490474][ T10] ? __pfx_kthread+0x10/0x10 [ 29.490478][ T10] ret_from_fork_asm+0x1a/0x30 [ 29.490506][ T10] [ 40.334432][ T423] bond0 (unregistering): (slave eth0): Releasing backup interface [ 40.348777][ T423] bond0 (unregistering): (slave eth1): Releasing backup interface [ 40.368292][ T423] bond0 (unregistering): Released all slaves [ 40.383603][ T56] br0: port 1(s0) entered disabled state [ 40.384991][ T56] br0: port 2(s1) entered disabled state [ 40.661564][ T427] bond0: (slave eth0): making interface the new active one [ 40.669511][ T427] bond0: (slave eth0): Enslaving as an active interface with an up link [ 40.670333][ T274] br0: port 1(s0) entered blocking state [ 40.670611][ T274] br0: port 1(s0) entered forwarding state [ 40.755944][ T428] bond0: (slave eth1): Enslaving as an active interface with an up link [ 40.756557][ T40] br0: port 2(s1) entered blocking state [ 40.756753][ T40] br0: port 2(s1) entered forwarding state [ 42.856154][ T448] eth0: entered promiscuous mode [ 53.288832][ T493] eth0: left promiscuous mode [ 53.724667][ T494] bond0 (unregistering): (slave eth0): Releasing active interface [ 53.757150][ T494] bond0 (unregistering): (slave eth1): Releasing active interface [ 53.781034][ T494] bond0 (unregistering): Released all slaves [ 53.789319][ T46] br0: port 1(s0) entered disabled state [ 53.790994][ T46] br0: port 2(s1) entered disabled state [ 54.057650][ T498] bond0: (slave eth0): making interface the new active one [ 54.058396][ T498] bond0: (slave eth0): Enslaving as an active interface with an up link [ 54.059018][ T46] br0: port 1(s0) entered blocking state [ 54.059260][ T46] br0: port 1(s0) entered forwarding state [ 54.152834][ T499] bond0: (slave eth1): Enslaving as an active interface with an up link [ 54.153509][ T274] br0: port 2(s1) entered blocking state [ 54.153753][ T274] br0: port 2(s1) entered forwarding state [ 67.198367][ T566] bond0 (unregistering): (slave eth0): Releasing active interface [ 67.220697][ T566] bond0 (unregistering): (slave eth1): Releasing active interface [ 67.236631][ T566] bond0 (unregistering): Released all slaves [ 67.252039][ T528] br0: port 1(s0) entered disabled state [ 67.260243][ T528] br0: port 2(s1) entered disabled state [ 67.526959][ T570] bond0: (slave eth0): making interface the new active one [ 67.527963][ T570] bond0: (slave eth0): Enslaving as an active interface with an up link [ 67.528664][ T274] br0: port 1(s0) entered blocking state [ 67.528909][ T274] br0: port 1(s0) entered forwarding state [ 67.609921][ T571] bond0: (slave eth1): Enslaving as an active interface with an up link [ 67.610611][ T528] br0: port 2(s1) entered blocking state [ 67.610812][ T528] br0: port 2(s1) entered forwarding state [ 69.751320][ T591] eth0: entered promiscuous mode [ 80.287452][ T636] eth0: left promiscuous mode [ 80.745239][ T637] bond0 (unregistering): (slave eth0): Releasing active interface [ 80.766157][ T637] bond0 (unregistering): (slave eth1): Releasing active interface [ 80.789257][ T637] bond0 (unregistering): Released all slaves [ 80.797522][ T528] br0: port 1(s0) entered disabled state [ 80.799003][ T528] br0: port 2(s1) entered disabled state [ 81.083210][ T641] bond0: (slave eth0): making interface the new active one [ 81.084172][ T641] bond0: (slave eth0): Enslaving as an active interface with an up link [ 81.084792][ T274] br0: port 1(s0) entered blocking state [ 81.085030][ T274] br0: port 1(s0) entered forwarding state [ 81.171101][ T642] bond0: (slave eth1): Enslaving as an active interface with an up link [ 81.171881][ T56] br0: port 2(s1) entered blocking state [ 81.172157][ T56] br0: port 2(s1) entered forwarding state [ 93.593489][ T704] br0: port 3(c0) entered disabled state [ 93.738383][ T704] c0 (unregistering): left allmulticast mode [ 93.738834][ T704] c0 (unregistering): left promiscuous mode [ 93.739207][ T704] br0: port 3(c0) entered disabled state [ 94.124210][ T711] br0: port 1(s0) entered disabled state [ 94.201047][ T711] bond0: (slave eth0): Releasing active interface [ 94.201390][ T711] bond0: (slave eth0): the permanent HWaddr of slave - 4e:0a:98:43:3b:f3 - is still in use by bond - set the HWaddr of slave to a different address to avoid conflicts [ 94.202162][ T711] bond0: (slave eth1): making interface the new active one [ 94.316848][ T711] s0 (unregistering): left allmulticast mode [ 94.317204][ T711] s0 (unregistering): left promiscuous mode [ 94.317432][ T711] br0: port 1(s0) entered disabled state [ 94.431054][ T712] br0: port 2(s1) entered disabled state [ 94.499775][ T712] bond0: (slave eth1): Releasing active interface [ 94.613871][ T712] s1 (unregistering): left allmulticast mode [ 94.614192][ T712] s1 (unregistering): left promiscuous mode [ 94.614441][ T712] br0: port 2(s1) entered disabled state [ 95.076812][ T287] bond0 (unregistering): Released all slaves