[Bug 1766] nfqueue randomly drops packets with same tuple

bugzilla-daemon at netfilter.org bugzilla-daemon at netfilter.org
Wed Sep 18 10:41:42 CEST 2024


https://bugzilla.netfilter.org/show_bug.cgi?id=1766

--- Comment #9 from Antonio Ojea <antonio.ojea.garcia at gmail.com> ---
Still failing, captured two traces to show the differences

GOOD ONE

0xffff8dd044679180 0   <empty>:3760     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp) nf_queue               
     nf_hook_slow
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) nf_conntrack_update    
     nfqnl_reinject
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) nf_nat_ipv4_out        
     nfqnl_reinject
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) nf_nat_inet_fn         
     nf_nat_ipv4_out
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) nft_nat_do_chain       
     nf_nat_inet_fn
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) selinux_ip_postroute   
     nfqnl_reinject
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp)
selinux_ip_postroute_compat  selinux_ip_postroute
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) nf_confirm             
     nfqnl_reinject
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) __nf_conntrack_confirm 
     nf_confirm
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) ip_finish_output       
     nfqnl_reinject
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) __ip_finish_output     
     nfqnl_reinject
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) ip_finish_output2      
     nfqnl_reinject
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) __dev_queue_xmit       
     ip_finish_output2
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) netdev_core_pick_tx    
     __dev_queue_xmit
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) validate_xmit_skb      
     __dev_queue_xmit
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) netif_skb_features     
     validate_xmit_skb
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) passthru_features_check
     netif_skb_features
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) skb_network_protocol   
     netif_skb_features
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) skb_csum_hwoffload_help
     validate_xmit_skb
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) validate_xmit_xfrm     
     __dev_queue_xmit
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) dev_hard_start_xmit    
     __dev_queue_xmit
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) veth_xmit              
     dev_hard_start_xmit
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) __dev_forward_skb      
     veth_xmit
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) __dev_forward_skb2     
     veth_xmit
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) skb_scrub_packet       
     __dev_forward_skb2
0xffff8dd044679680 0   <empty>:1635     4026532316 0         veth60925af6:7 
0x0800 1500  73    10.244.0.2:32942->10.244.0.4:53(udp) eth_type_trans         
     __dev_forward_skb2

BAD ONE


0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp) nf_conntrack_update    
     nfqnl_reinject
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp) nf_nat_manip_pkt       
     nf_conntrack_update
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp) nf_nat_ipv4_manip_pkt  
     nf_nat_manip_pkt
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp) skb_ensure_writable    
     nf_nat_ipv4_manip_pkt
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp) l4proto_manip_pkt      
     nf_nat_ipv4_manip_pkt
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp) skb_ensure_writable    
     l4proto_manip_pkt
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp) nf_csum_update         
     l4proto_manip_pkt
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp)
inet_proto_csum_replace4     l4proto_manip_pkt
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.3:53(udp)
inet_proto_csum_replace4     l4proto_manip_pkt
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) nf_nat_ipv4_out        
     nfqnl_reinject
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) nf_nat_inet_fn         
     nf_nat_ipv4_out
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) selinux_ip_postroute   
     nfqnl_reinject
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp)
selinux_ip_postroute_compat  selinux_ip_postroute
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) nf_confirm             
     nfqnl_reinject
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) ip_finish_output       
     nfqnl_reinject
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) __ip_finish_output     
     nfqnl_reinject
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) ip_finish_output2      
     nfqnl_reinject
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) neigh_resolve_output   
     ip_finish_output2
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) __neigh_event_send     
     neigh_resolve_output
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) skb_clone              
     neigh_probe
0xffff8dd044679180 0   <empty>:1635     4026532316 0         veth539c3d56:6 
0x0800 1500  59    10.244.0.2:32942->10.244.0.4:53(udp) arp_solicit            
     neigh_probe

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