Date: Sat, 10 Jun 2023 11:17:01 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: net@freebsd.org Subject: IPv6 LORs etc Message-ID: <8qqrn586-7r8r-1652-8r8q-qpnn9sn47qrr@yvfgf.mnoonqbm.arg>
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Hi, I am seeing a lot more LORs etc. again: # rtsol vtnet0 Invoking IPv6 network device address event may sleep with the following non-sleepable locks held: exclusive sleep mutex vtnet0-rx0 (vtnet0-rx0) r = 0 (0xfffff8000176c600) locked @ /usr/src/sys/dev/virtio/network/if_vtnet.c:2188 stack backtrace: #0 0xffffffff80bc4925 at witness_debugger+0x65 #1 0xffffffff80bc5a79 at witness_warn+0x3f9 #2 0xffffffff80d7096a at in6_update_ifa+0xc1a #3 0xffffffff80d9c5b9 at in6_ifadd+0x1d9 #4 0xffffffff80d98d3f at nd6_ra_input+0x103f #5 0xffffffff80d6b3f8 at icmp6_input+0x898 #6 0xffffffff80d838a3 at ip6_input+0xcc3 #7 0xffffffff80ca72dd at netisr_dispatch_src+0xad #8 0xffffffff80c88e6a at ether_demux+0x17a #9 0xffffffff80c8a492 at ether_nh_input+0x392 #10 0xffffffff80ca72dd at netisr_dispatch_src+0xad #11 0xffffffff80c892b9 at ether_input+0xd9 #12 0xffffffff8097ba03 at vtnet_rxq_eof+0x7c3 #13 0xffffffff8097b19a at vtnet_rx_vq_process+0x9a #14 0xffffffff80b0c286 at ithread_loop+0x276 #15 0xffffffff80b08730 at fork_exit+0x80 #16 0xffffffff81020d8e at fork_trampoline+0xe lock order reversal: (sleepable after non-sleepable) 1st 0xfffff8000176c600 vtnet0-rx0 (vtnet0-rx0, sleep mutex) @ /usr/src/sys/dev/virtio/network/if_vtnet.c:2188 2nd 0xffffffff81a4e960 in6_multi_sx (in6_multi_sx, sx) @ /usr/src/sys/netinet6/in6_mcast.c:1219 lock order vtnet0-rx0 -> in6_multi_sx attempted at: #0 0xffffffff80bc44e3 at witness_checkorder+0xbb3 #1 0xffffffff80b5d392 at _sx_xlock+0x62 #2 0xffffffff80d79341 at in6_joingroup+0x31 #3 0xffffffff80d70d2b at in6_update_ifa+0xfdb #4 0xffffffff80d9c5b9 at in6_ifadd+0x1d9 #5 0xffffffff80d98d3f at nd6_ra_input+0x103f #6 0xffffffff80d6b3f8 at icmp6_input+0x898 #7 0xffffffff80d838a3 at ip6_input+0xcc3 #8 0xffffffff80ca72dd at netisr_dispatch_src+0xad #9 0xffffffff80c88e6a at ether_demux+0x17a #10 0xffffffff80c8a492 at ether_nh_input+0x392 #11 0xffffffff80ca72dd at netisr_dispatch_src+0xad #12 0xffffffff80c892b9 at ether_input+0xd9 #13 0xffffffff8097ba03 at vtnet_rxq_eof+0x7c3 #14 0xffffffff8097b19a at vtnet_rx_vq_process+0x9a #15 0xffffffff80b0c286 at ithread_loop+0x276 #16 0xffffffff80b08730 at fork_exit+0x80 #17 0xffffffff81020d8e at fork_trampoline+0xe lock order reversal: 1st 0xfffffe00014d3a10 tcphash (tcphash, sleep mutex) @ /usr/src/sys/netinet/tcp_usrreq.c:1512 2nd 0xffffffff81a4e9c0 in6_ifaddr_lock (in6_ifaddr_lock, rm) @ /usr/src/sys/netinet6/in6_src.c:305 lock order tcphash -> in6_ifaddr_lock attempted at: #0 0xffffffff80bc44e3 at witness_checkorder+0xbb3 #1 0xffffffff80b4b11f at _rm_rlock_debug+0x12f #2 0xffffffff80d8011f at in6_selectsrc+0x44f #3 0xffffffff80d7fc80 at in6_selectsrc_socket+0x40 #4 0xffffffff80d7dbc7 at in6_pcbconnect+0x247 #5 0xffffffff80d61b33 at tcp6_connect+0xa3 #6 0xffffffff80d5f4e4 at tcp6_usr_connect+0x304 #7 0xffffffff80c009af at soconnectat+0xaf #8 0xffffffff80c07aa1 at kern_connectat+0xe1 #9 0xffffffff80c07995 at sys_connect+0x75 #10 0xffffffff8104d6c0 at amd64_syscall+0x140 #11 0xffffffff8102063b at fast_syscall_common+0xf8 -- Bjoern A. Zeeb r15:7
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