[ 12.279696][ T281] ip (281) used greatest stack depth: 23952 bytes left [ 14.147704][ T305] br1: port 1(veth1) entered blocking state [ 14.149299][ T305] br1: port 1(veth1) entered disabled state [ 14.149723][ T305] veth1: entered allmulticast mode [ 14.151814][ T305] veth1: entered promiscuous mode [ 14.245243][ T40] br1: port 1(veth1) entered blocking state [ 14.245647][ T40] br1: port 1(veth1) entered forwarding state [ 14.343760][ T309] br1: port 2(veth2) entered blocking state [ 14.344046][ T309] br1: port 2(veth2) entered disabled state [ 14.344642][ T309] veth2: entered allmulticast mode [ 14.346697][ T309] veth2: entered promiscuous mode [ 14.434919][ T41] br1: port 2(veth2) entered blocking state [ 14.435262][ T41] br1: port 2(veth2) entered forwarding state [ 22.026026][ T347] GACT probability NOT on [ 22.171145][ T348] [ 22.171424][ T348] ============================= [ 22.171867][ T348] WARNING: suspicious RCU usage [ 22.172046][ T348] 6.14.0-rc6-virtme #1 Not tainted [ 22.172262][ T348] ----------------------------- [ 22.172414][ T348] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 22.172688][ T348] [ 22.172688][ T348] other info that might help us debug this: [ 22.172688][ T348] [ 22.172979][ T348] [ 22.172979][ T348] rcu_scheduler_active = 2, debug_locks = 1 [ 22.173284][ T348] 1 lock held by mausezahn/348: [ 22.173454][ T348] #0: ffffffffa555b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 22.173743][ T348] [ 22.173743][ T348] stack backtrace: [ 22.173935][ T348] CPU: 3 UID: 0 PID: 348 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 22.173940][ T348] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.173942][ T348] Call Trace: [ 22.173944][ T348] [ 22.173947][ T348] dump_stack_lvl+0xb0/0xd0 [ 22.173956][ T348] lockdep_rcu_suspicious+0x1ea/0x280 [ 22.173968][ T348] dev_hard_start_xmit+0x2fc/0x3f0 [ 22.173978][ T348] __dev_queue_xmit+0xfaf/0x18d0 [ 22.173992][ T348] ? __pfx___dev_queue_xmit+0x10/0x10 [ 22.173997][ T348] ? packet_parse_headers+0x231/0x9c0 [ 22.174006][ T348] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 22.174013][ T348] ? __pfx_packet_parse_headers+0x10/0x10 [ 22.174017][ T348] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 22.174024][ T348] ? dev_get_by_index+0xb2/0x190 [ 22.174036][ T348] packet_snd+0xd0c/0x19d0 [ 22.174048][ T348] ? __lock_release+0x103/0x460 [ 22.174052][ T348] ? __might_fault+0x11b/0x170 [ 22.174060][ T348] ? __pfx_packet_snd+0x10/0x10 [ 22.174062][ T348] ? trace_lock_acquire+0x14c/0x1f0 [ 22.174065][ T348] ? __might_fault+0x11b/0x170 [ 22.174072][ T348] ? lock_acquire+0x32/0xc0 [ 22.174078][ T348] ? __might_fault+0x11b/0x170 [ 22.174089][ T348] __sys_sendto+0x3c3/0x450 [ 22.174096][ T348] ? __pfx___sys_sendto+0x10/0x10 [ 22.174113][ T348] ? sock_ioctl+0x3b6/0x590 [ 22.174124][ T348] ? __pfx___up_read+0x10/0x10 [ 22.174133][ T348] ? do_user_addr_fault+0x374/0xe30 [ 22.174144][ T348] ? do_user_addr_fault+0x374/0xe30 [ 22.174151][ T348] __x64_sys_sendto+0xe0/0x1c0 [ 22.174155][ T348] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 22.174161][ T348] do_syscall_64+0xc1/0x1d0 [ 22.174170][ T348] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 22.174175][ T348] RIP: 0033:0x7fc8da254a4a [ 22.174180][ T348] 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 [ 22.174183][ T348] RSP: 002b:00007ffcd20a6a28 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 22.174186][ T348] RAX: ffffffffffffffda RBX: 00000000164439d0 RCX: 00007fc8da254a4a [ 22.174188][ T348] RDX: 000000000000008e RSI: 0000000016443cf2 RDI: 0000000000000005 [ 22.174190][ T348] RBP: 0000000016443cf2 R08: 00007ffcd20a6a30 R09: 0000000000000014 [ 22.174192][ T348] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 22.174194][ T348] R13: 000000000000008e R14: 00007ffcd20a6a30 R15: 0000000000000000 [ 22.174210][ T348] [ 25.550139][ C0] tc action pedit unable to extract header offset for header type (0x5) [ 27.597370][ C1] tc action pedit unable to extract header offset for header type (0x5) [ 28.621437][ C1] tc action pedit unable to extract header offset for header type (0x5) [ 41.933837][ C2] tc action pedit unable to extract header offset for header type (0x4) [ 48.077283][ C1] tc action pedit unable to extract header offset for header type (0x4) [ 49.958273][ T738] br1: port 2(veth2) entered disabled state [ 50.041702][ T739] veth2: left allmulticast mode [ 50.042057][ T739] veth2: left promiscuous mode [ 50.042429][ T739] br1: port 2(veth2) entered disabled state [ 50.135635][ T740] br1: port 1(veth1) entered disabled state [ 50.212519][ T741] veth1: left allmulticast mode [ 50.212801][ T741] veth1: left promiscuous mode [ 50.213175][ T741] br1: port 1(veth1) entered disabled state