Date: Wed, 16 Aug 2023 00:05:06 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: net@freebsd.org Subject: TCP/IPv6 LOR in main Message-ID: <rq8oqon7-9p1o-3548-82n5-7s52np212ro9@yvfgf.mnoonqbm.arg>
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Hi, with ALPHA1 inside a bhyve development VM: lock order reversal: 1st 0xfffffe0001522a70 tcphash (tcphash, sleep mutex) @ /sys/netinet/tcp_usrreq.c:1513 2nd 0xffffffff81aa7bb0 in6_ifaddr_lock (in6_ifaddr_lock, rm) @ /sys/netinet6/in6_src.c:305 lock order tcphash -> in6_ifaddr_lock attempted at: #0 0xffffffff80bc063e at witness_checkorder+0xbbe #1 0xffffffff80b463e9 at _rm_rlock_debug+0x139 #2 0xffffffff80d7b99a at in6_selectsrc+0x45a #3 0xffffffff80d7b4f1 at in6_selectsrc_socket+0x41 #4 0xffffffff80d79437 at in6_pcbconnect+0x247 #5 0xffffffff80d5d554 at tcp6_connect+0xa4 #6 0xffffffff80d5aeab at tcp6_usr_connect+0x2eb #7 0xffffffff80bfcb43 at soconnectat+0xb3 #8 0xffffffff80c03c90 at kern_connectat+0xe0 #9 0xffffffff80c03b9b at sys_connect+0x9b #10 0xffffffff8104a398 at amd64_syscall+0x138 #11 0xffffffff8101cbeb at fast_syscall_common+0xf8 -- Bjoern A. Zeeb r15:7
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