Date: Mon, 31 Dec 2018 13:57:51 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 233535] Machines lost ping6 after adding same IPv6 address Message-ID: <bug-233535-7501-tOcAfhY7QF@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-233535-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-233535-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233535 --- Comment #18 from Hans Petter Selasky <hselasky@FreeBSD.org> --- Documenting yet another related crash scenario: #12 0xffffffff80e292f0 in mld_change_state (inm=0xfffff802eb1f5800, delay=0) at /usr/img/freebsd/sys/netinet6/mld6.c:1909 #13 0xffffffff80e1546a in in6_joingroup_locked (ifp=<optimized out>, mcaddr=0xfffffe008da78618, imf=0x0, pinm=0xfffff8000415a960, delay=0) at /usr/img/freebsd/sys/netinet6/in6_mcast.c:1321 #14 0xffffffff80e14f74 in in6_joingroup (ifp=0xffffffff81e95368 <cnputs_mtx>, mcaddr=0x80, imf=<optimized out>, pinm=0x80, delay=16) at /usr/img/freebsd/sys/netinet6/in6_mcast.c:1248 #15 0xffffffff80e0ce20 in in6_joingroup_legacy (ifp=<optimized out>, mcaddr=0x40002ff, delay=18, errorp=<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:752 #16 in6_update_ifa_join_mc (ifp=<optimized out>, ifra=<optimized out>, ia=<optimized out>, flags=<optimized out>, in6m_sol=<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:848 #17 in6_broadcast_ifa (ifp=<optimized out>, ifra=<optimized out>, ia=<optimized out>, flags=<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:1227 #18 in6_update_ifa (ifp=<optimized out>, ifra=<optimized out>, ia=<optimized out>, flags=<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:910 #19 0xffffffff80e0ae7b in in6_control (so=<optimized out>, --Type <RET> for more, q to quit, c to continue without paging-- data=<optimized out>, ifp=<optimized out>, td=<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:564 #20 0xffffffff80cd13db in ifioctl (so=<optimized out>, cmd=2156423451, data=0xfffff80006ea3b00 "mce0", td=0xfffff8011cc9a000) at /usr/img/freebsd/sys/net/if.c:3098 #21 0xffffffff80c3c41b in fo_ioctl (fp=<optimized out>, com=<optimized out>, data=0x1d0, active_cred=0x80, td=<optimized out>) at /usr/img/freebsd/sys/sys/file.h:330 #22 kern_ioctl (td=<optimized out>, fd=<optimized out>, com=2156423451, data=0x1d0 <error: Cannot access memory at address 0x1d0>) at /usr/img/freebsd/sys/kern/sys_generic.c:800 #23 0xffffffff80c3c10d in sys_ioctl (td=0xfffff8011cc9a000, uap=0xfffff8011cc9a3c0) at /usr/img/freebsd/sys/kern/sys_generic.c:712 #24 0xffffffff8109deb2 in syscallenter (td=0xfffff8011cc9a000) at /usr/img/freebsd/sys/amd64/amd64/../../kern/subr_syscall.c:135 #25 amd64_syscall (td=0xfffff8011cc9a000, traced=0) at /usr/img/freebsd/sys/amd64/amd64/trap.c:1154 #12 0xffffffff80e292f0 in mld_change_state (inm=0xfffff802eb1f5800, delay=0) at /usr/img/freebsd/sys/netinet6/mld6.c:1909 1909 KASSERT(inm->in6m_ifp == ifp, ("%s: bad ifp", __func__)); (kgdb) list 1904 return (0); 1905 /* 1906 * Sanity check that netinet6's notion of ifp is the 1907 * same as net's. 1908 */ 1909 KASSERT(inm->in6m_ifp == ifp, ("%s: bad ifp", __func__)); 1910 1911 MLD_LOCK(); 1912 mli = MLD_IFINFO(ifp); 1913 KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp)); (kgdb) print *inm $3 = { in6m_addr = { __u6_addr = { __u6_addr8 = "\377\002\000\004\000\000\000\000\000\000\000\002\340\312\325\032", __u6_addr16 = {767, 1024, 0, 0, 0, 512, 51936, 6869}, __u6_addr32 = {67109631, 0, 33554432, 450218720} } }, in6m_ifp = 0x0, in6m_ifma = 0xfffff80006969080, in6m_refcount = 1, in6m_state = 0, in6m_timer = 0, in6m_mli = 0xfffff800067e0900, in6m_nrele = { sle_next = 0x0 }, in6m_srcs = { rbh_root = 0x0 }, in6m_nsrc = 0, in6m_scq = { mq_head = { stqh_first = 0x0, stqh_last = 0xfffff802eb1f5850 }, mq_len = 0, mq_maxlen = 24 }, in6m_lastgsrtv = { tv_sec = 0, tv_usec = 0 }, in6m_sctimer = 0, in6m_scrv = 0, in6m_st = {{ iss_fmode = 0, iss_asm = 0, iss_ex = 0, iss_in = 0, iss_rec = 0 }, { iss_fmode = 2, iss_asm = 1, iss_ex = 1, iss_in = 0, iss_rec = 0 }} } -- You are receiving this mail because: You are the assignee for the bug.
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