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=3D233535 --- Comment #18 from Hans Petter Selasky <hselasky@FreeBSD.org> --- Documenting yet another related crash scenario: #12 0xffffffff80e292f0 in mld_change_state (inm=3D0xfffff802eb1f5800, delay= =3D0) at /usr/img/freebsd/sys/netinet6/mld6.c:1909 #13 0xffffffff80e1546a in in6_joingroup_locked (ifp=3D<optimized out>,=20 mcaddr=3D0xfffffe008da78618, imf=3D0x0, pinm=3D0xfffff8000415a960, dela= y=3D0) at /usr/img/freebsd/sys/netinet6/in6_mcast.c:1321 #14 0xffffffff80e14f74 in in6_joingroup (ifp=3D0xffffffff81e95368 <cnputs_m= tx>,=20 mcaddr=3D0x80, imf=3D<optimized out>, pinm=3D0x80, delay=3D16) at /usr/img/freebsd/sys/netinet6/in6_mcast.c:1248 #15 0xffffffff80e0ce20 in in6_joingroup_legacy (ifp=3D<optimized out>,=20 mcaddr=3D0x40002ff, delay=3D18, errorp=3D<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:752 #16 in6_update_ifa_join_mc (ifp=3D<optimized out>, ifra=3D<optimized out>,= =20 ia=3D<optimized out>, flags=3D<optimized out>, in6m_sol=3D<optimized ou= t>) at /usr/img/freebsd/sys/netinet6/in6.c:848 #17 in6_broadcast_ifa (ifp=3D<optimized out>, ifra=3D<optimized out>,=20 ia=3D<optimized out>, flags=3D<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:1227 #18 in6_update_ifa (ifp=3D<optimized out>, ifra=3D<optimized out>,=20 ia=3D<optimized out>, flags=3D<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:910 #19 0xffffffff80e0ae7b in in6_control (so=3D<optimized out>,=20 --Type <RET> for more, q to quit, c to continue without paging-- data=3D<optimized out>, ifp=3D<optimized out>, td=3D<optimized out>) at /usr/img/freebsd/sys/netinet6/in6.c:564 #20 0xffffffff80cd13db in ifioctl (so=3D<optimized out>, cmd=3D2156423451, data=3D0xfffff80006ea3b00 "mce0",=20 td=3D0xfffff8011cc9a000) at /usr/img/freebsd/sys/net/if.c:3098 #21 0xffffffff80c3c41b in fo_ioctl (fp=3D<optimized out>, com=3D<optimized = out>, data=3D0x1d0, active_cred=3D0x80,=20 td=3D<optimized out>) at /usr/img/freebsd/sys/sys/file.h:330 #22 kern_ioctl (td=3D<optimized out>, fd=3D<optimized out>, com=3D215642345= 1,=20 data=3D0x1d0 <error: Cannot access memory at address 0x1d0>) at /usr/img/freebsd/sys/kern/sys_generic.c:800 #23 0xffffffff80c3c10d in sys_ioctl (td=3D0xfffff8011cc9a000, uap=3D0xfffff8011cc9a3c0) at /usr/img/freebsd/sys/kern/sys_generic.c:712 #24 0xffffffff8109deb2 in syscallenter (td=3D0xfffff8011cc9a000) at /usr/img/freebsd/sys/amd64/amd64/../../kern/subr_syscall.c:135 #25 amd64_syscall (td=3D0xfffff8011cc9a000, traced=3D0) at /usr/img/freebsd/sys/amd64/amd64/trap.c:1154 #12 0xffffffff80e292f0 in mld_change_state (inm=3D0xfffff802eb1f5800, delay= =3D0) at /usr/img/freebsd/sys/netinet6/mld6.c:1909 1909 KASSERT(inm->in6m_ifp =3D=3D 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 =3D=3D ifp, ("%s: bad ifp", __func__)= ); 1910=20=20=20=20 1911 MLD_LOCK(); 1912 mli =3D MLD_IFINFO(ifp); 1913 KASSERT(mli !=3D NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp)); (kgdb) print *inm $3 =3D { in6m_addr =3D { __u6_addr =3D { __u6_addr8 =3D "\377\002\000\004\000\000\000\000\000\000\000\002\340\312\325\032",=20 __u6_addr16 =3D {767, 1024, 0, 0, 0, 512, 51936, 6869},=20 __u6_addr32 =3D {67109631, 0, 33554432, 450218720} } },=20 in6m_ifp =3D 0x0,=20 in6m_ifma =3D 0xfffff80006969080,=20 in6m_refcount =3D 1,=20 in6m_state =3D 0,=20 in6m_timer =3D 0,=20 in6m_mli =3D 0xfffff800067e0900,=20 in6m_nrele =3D { sle_next =3D 0x0 },=20 in6m_srcs =3D { rbh_root =3D 0x0 },=20 in6m_nsrc =3D 0,=20 in6m_scq =3D { mq_head =3D { stqh_first =3D 0x0,=20 stqh_last =3D 0xfffff802eb1f5850 },=20 mq_len =3D 0,=20 mq_maxlen =3D 24 },=20 in6m_lastgsrtv =3D { tv_sec =3D 0,=20 tv_usec =3D 0 },=20 in6m_sctimer =3D 0,=20 in6m_scrv =3D 0,=20 in6m_st =3D {{ iss_fmode =3D 0,=20 iss_asm =3D 0,=20 iss_ex =3D 0,=20 iss_in =3D 0,=20 iss_rec =3D 0 }, { iss_fmode =3D 2,=20 iss_asm =3D 1,=20 iss_ex =3D 1,=20 iss_in =3D 0,=20 iss_rec =3D 0 }} } --=20 You are receiving this mail because: You are the assignee for the bug.=
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