[ 10.242738][ T251] ip (251) used greatest stack depth: 24088 bytes left [ 12.774287][ T311] GACT probability NOT on [ 14.228865][ T360] br1: port 1(veth1) entered blocking state [ 14.229268][ T360] br1: port 1(veth1) entered disabled state [ 14.229645][ T360] veth1: entered allmulticast mode [ 14.232871][ T360] veth1: entered promiscuous mode [ 14.439198][ T71] br1: port 1(veth1) entered blocking state [ 14.439935][ T71] br1: port 1(veth1) entered forwarding state [ 21.074764][ T412] br1: port 2(vx1) entered blocking state [ 21.075100][ T412] br1: port 2(vx1) entered disabled state [ 21.075761][ T412] vx1: entered allmulticast mode [ 21.078705][ T412] vx1: entered promiscuous mode [ 21.079952][ T412] br1: port 2(vx1) entered blocking state [ 21.080243][ T412] br1: port 2(vx1) entered forwarding state [ 21.976507][ T468] [ 21.976871][ T468] ============================= [ 21.977046][ T468] WARNING: suspicious RCU usage [ 21.977347][ T468] 6.14.0-rc6-virtme #1 Not tainted [ 21.977512][ T468] ----------------------------- [ 21.977691][ T468] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 21.977960][ T468] [ 21.977960][ T468] other info that might help us debug this: [ 21.977960][ T468] [ 21.978313][ T468] [ 21.978313][ T468] rcu_scheduler_active = 2, debug_locks = 1 [ 21.978563][ T468] 1 lock held by mausezahn/468: [ 21.978733][ T468] #0: ffffffff9b55b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 21.979034][ T468] [ 21.979034][ T468] stack backtrace: [ 21.979235][ T468] CPU: 2 UID: 0 PID: 468 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 21.979239][ T468] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.979241][ T468] Call Trace: [ 21.979242][ T468] [ 21.979245][ T468] dump_stack_lvl+0xb0/0xd0 [ 21.979252][ T468] lockdep_rcu_suspicious+0x1ea/0x280 [ 21.979263][ T468] dev_hard_start_xmit+0x2fc/0x3f0 [ 21.979273][ T468] __dev_queue_xmit+0xfaf/0x18d0 [ 21.979287][ T468] ? __pfx___dev_queue_xmit+0x10/0x10 [ 21.979292][ T468] ? packet_parse_headers+0x231/0x9c0 [ 21.979301][ T468] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 21.979307][ T468] ? __pfx_packet_parse_headers+0x10/0x10 [ 21.979311][ T468] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 21.979317][ T468] ? dev_get_by_index+0xb2/0x190 [ 21.979328][ T468] packet_snd+0xd0c/0x19d0 [ 21.979340][ T468] ? __lock_release+0x103/0x460 [ 21.979344][ T468] ? __might_fault+0x11b/0x170 [ 21.979351][ T468] ? __pfx_packet_snd+0x10/0x10 [ 21.979353][ T468] ? trace_lock_acquire+0x14c/0x1f0 [ 21.979355][ T468] ? __might_fault+0x11b/0x170 [ 21.979362][ T468] ? lock_acquire+0x32/0xc0 [ 21.979368][ T468] ? __might_fault+0x11b/0x170 [ 21.979379][ T468] __sys_sendto+0x3c3/0x450 [ 21.979386][ T468] ? __pfx___sys_sendto+0x10/0x10 [ 21.979400][ T468] ? sock_ioctl+0x3b6/0x590 [ 21.979409][ T468] ? __pfx___up_read+0x10/0x10 [ 21.979417][ T468] ? do_user_addr_fault+0x374/0xe30 [ 21.979427][ T468] ? do_user_addr_fault+0x374/0xe30 [ 21.979434][ T468] __x64_sys_sendto+0xe0/0x1c0 [ 21.979438][ T468] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 21.979444][ T468] do_syscall_64+0xc1/0x1d0 [ 21.979451][ T468] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 21.979456][ T468] RIP: 0033:0x7f2bca88ba4a [ 21.979460][ T468] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 21.979463][ T468] RSP: 002b:00007ffd5ddd68c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 21.979467][ T468] RAX: ffffffffffffffda RBX: 0000000033b509d0 RCX: 00007f2bca88ba4a [ 21.979469][ T468] RDX: 0000000000000094 RSI: 0000000033b50cf2 RDI: 0000000000000005 [ 21.979471][ T468] RBP: 0000000033b50cf2 R08: 00007ffd5ddd68d0 R09: 0000000000000014 [ 21.979473][ T468] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 21.979475][ T468] R13: 0000000000000094 R14: 00007ffd5ddd68d0 R15: 0000000000000000 [ 21.979490][ T468] [ 59.012038][ T2365] vx1: left allmulticast mode [ 59.012461][ T2365] vx1: left promiscuous mode [ 59.013039][ T2365] br1: port 2(vx1) entered disabled state [ 59.186223][ T2367] ip (2367) used greatest stack depth: 23696 bytes left [ 59.505515][ T2388] br1: port 2(vx1) entered blocking state [ 59.505811][ T2388] br1: port 2(vx1) entered disabled state [ 59.506121][ T2388] vx1: entered allmulticast mode [ 59.508422][ T2388] vx1: entered promiscuous mode [ 59.509619][ T2388] br1: port 2(vx1) entered blocking state [ 59.509851][ T2388] br1: port 2(vx1) entered forwarding state [ 97.881175][ T4340] vx1: left allmulticast mode [ 97.881441][ T4340] vx1: left promiscuous mode [ 97.881782][ T4340] br1: port 2(vx1) entered disabled state [ 98.446595][ T4373] br1: port 2(vx1) entered blocking state [ 98.446836][ T4373] br1: port 2(vx1) entered disabled state [ 98.447084][ T4373] vx1: entered allmulticast mode [ 98.449025][ T4373] vx1: entered promiscuous mode [ 98.449869][ T4373] br1: port 2(vx1) entered blocking state [ 98.450393][ T4373] br1: port 2(vx1) entered forwarding state [ 136.574899][ T6325] vx1: left allmulticast mode [ 136.575141][ T6325] vx1: left promiscuous mode [ 136.575453][ T6325] br1: port 2(vx1) entered disabled state [ 137.153811][ T6358] br1: port 2(vx1) entered blocking state [ 137.154059][ T6358] br1: port 2(vx1) entered disabled state [ 137.154302][ T6358] vx1: entered allmulticast mode [ 137.163918][ T6358] vx1: entered promiscuous mode [ 137.164711][ T6358] br1: port 2(vx1) entered blocking state [ 137.164967][ T6358] br1: port 2(vx1) entered forwarding state [ 175.454278][ T8310] vx1: left allmulticast mode [ 175.455136][ T8310] vx1: left promiscuous mode [ 175.455480][ T8310] br1: port 2(vx1) entered disabled state [ 176.057157][ T8343] br1: port 2(vx1) entered blocking state [ 176.057440][ T8343] br1: port 2(vx1) entered disabled state [ 176.057723][ T8343] vx1: entered allmulticast mode [ 176.067188][ T8343] vx1: entered promiscuous mode [ 176.068408][ T8343] br1: port 2(vx1) entered blocking state [ 176.068642][ T8343] br1: port 2(vx1) entered forwarding state [ 215.310754][T10295] vx1: left allmulticast mode [ 215.311003][T10295] vx1: left promiscuous mode [ 215.311314][T10295] br1: port 2(vx1) entered disabled state [ 215.853486][T10328] br1: port 2(vx1) entered blocking state [ 215.854180][T10328] br1: port 2(vx1) entered disabled state [ 215.854462][T10328] vx1: entered allmulticast mode [ 215.856439][T10328] vx1: entered promiscuous mode [ 215.857267][T10328] br1: port 2(vx1) entered blocking state [ 215.857513][T10328] br1: port 2(vx1) entered forwarding state [ 253.214210][T12280] vx1: left allmulticast mode [ 253.214510][T12280] vx1: left promiscuous mode [ 253.214891][T12280] br1: port 2(vx1) entered disabled state [ 253.713052][T12313] br1: port 2(vx1) entered blocking state [ 253.713325][T12313] br1: port 2(vx1) entered disabled state [ 253.713944][T12313] vx1: entered allmulticast mode [ 253.715879][T12313] vx1: entered promiscuous mode [ 253.716677][T12313] br1: port 2(vx1) entered blocking state [ 253.716894][T12313] br1: port 2(vx1) entered forwarding state [ 290.635913][T14265] vx1: left allmulticast mode [ 290.636153][T14265] vx1: left promiscuous mode [ 290.636467][T14265] br1: port 2(vx1) entered disabled state [ 291.594438][T14290] br1: port 1(veth1) entered disabled state [ 291.697327][T14292] veth1: left allmulticast mode [ 291.697634][T14292] veth1: left promiscuous mode [ 291.697961][T14292] br1: port 1(veth1) entered disabled state