From owner-freebsd-net@freebsd.org Tue Dec 18 14:13:55 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4AB6B1352AA3 for ; Tue, 18 Dec 2018 14:13:55 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id D2D566E7E9 for ; Tue, 18 Dec 2018 14:13:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 9665C1352AA0; Tue, 18 Dec 2018 14:13:54 +0000 (UTC) Delivered-To: net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 710CC1352A9F for ; Tue, 18 Dec 2018 14:13:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id BF7626E7E1 for ; Tue, 18 Dec 2018 14:13:53 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id ECB68DB8F for ; Tue, 18 Dec 2018 14:13:52 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id wBIEDqXF028134 for ; Tue, 18 Dec 2018 14:13:52 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id wBIEDqfh028131 for net@FreeBSD.org; Tue, 18 Dec 2018 14:13:52 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 233535] Machines lost ping6 after adding same IPv6 address Date: Tue, 18 Dec 2018 14:13:51 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: ae@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Dec 2018 14:13:55 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233535 --- Comment #16 from Andrey V. Elsukov --- Unread portion of the kernel message buffer: panic: Assertion inm->in6m_refcount > 0 failed at /home/devel/freebsd/base/head/sys/netinet6/in6_mcast.c:636 cpuid =3D 0 time =3D 1545140639 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00779ce= 740 vpanic() at vpanic+0x1a3/frame 0xfffffe00779ce7a0 panic() at panic+0x43/frame 0xfffffe00779ce800 in6m_disconnect() at in6m_disconnect+0x21b/frame 0xfffffe00779ce830 mld_fasttimo() at mld_fasttimo+0x7d7/frame 0xfffffe00779ce900 pffasttimo() at pffasttimo+0x54/frame 0xfffffe00779ce930 softclock_call_cc() at softclock_call_cc+0x141/frame 0xfffffe00779ce9e0 softclock() at softclock+0x7c/frame 0xfffffe00779cea10 ithread_loop() at ithread_loop+0x187/frame 0xfffffe00779cea70 fork_exit() at fork_exit+0x84/frame 0xfffffe00779ceab0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00779ceab0 --- trap 0, rip =3D 0, rsp =3D 0, rbp =3D 0 --- KDB: enter: panic __curthread () at ./machine/pcpu.h:230 230 __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (OFFSETOF_CURTHREAD)); (kgdb) bt #0 __curthread () at ./machine/pcpu.h:230 #1 doadump (textdump=3D-1791303680) at /home/devel/freebsd/base/head/sys/kern/kern_shutdown.c:371 #2 0xffffffff80466d7c in db_fncall_generic (addr=3D, rv=3D, nargs=3D, args=3D) at /home/devel/freebsd/base/head/sys/ddb/db_command.c:609 #3 db_fncall (dummy1=3D, dummy2=3D, dummy3=3D, dummy4=3D) at /home/devel/freebsd/base/head/sys/ddb/db_command.c:657 #4 0xffffffff804668b9 in db_command (last_cmdp=3D, cmd_table=3D, dopager=3D) at /home/devel/freebsd/base/head/sys/ddb/db_command.c:481 #5 0xffffffff80466634 in db_command_loop () at /home/devel/freebsd/base/head/sys/ddb/db_command.c:534 #6 0xffffffff8046984f in db_trap (type=3D, code=3D) at /home/devel/freebsd/base/head/sys/ddb/db_main.c:252 #7 0xffffffff80bf1365 in kdb_trap (type=3D3, code=3D0, tf=3D) at /home/devel/freebsd/base/head/sys/kern/subr_kdb.c:692 #8 0xffffffff81076f76 in trap (frame=3D0xfffffe00779ce670) at /home/devel/freebsd/base/head/sys/amd64/amd64/trap.c:619 #9 #10 kdb_enter (why=3D0xffffffff8130f382 "panic", msg=3D) at /home/devel/freebsd/base/head/sys/kern/subr_kdb.c:479 #11 0xffffffff80ba8e10 in vpanic (fmt=3D, ap=3D0xfffffe00779= ce7e0) at /home/devel/freebsd/base/head/sys/kern/kern_shutdown.c:866 #12 0xffffffff80ba8bb3 in panic (fmt=3D0xffffffff81e95368 "\340\066-\201\377\377\377\377") at /home/devel/freebsd/base/head/sys/kern/kern_shutdown.c:804 #13 0xffffffff80dee39b in in6m_disconnect (inm=3D0xfffff80003a04d00) at /home/devel/freebsd/base/head/sys/netinet6/in6_mcast.c:636 #14 0xffffffff80e02117 in mld_fasttimo_vnet () at /home/devel/freebsd/base/head/sys/netinet6/mld6.c:1611 #15 mld_fasttimo () at /home/devel/freebsd/base/head/sys/netinet6/mld6.c:13= 17 #16 0xffffffff80c36a04 in pffasttimo (arg=3D0xffffffff81e95368 = ) at /home/devel/freebsd/base/head/sys/kern/uipc_domain.c:521 #17 0xffffffff80bc2101 in softclock_call_cc (c=3D0xffffffff81314b74, cc=3D0xffffffff820acb40 , direct=3D) at /home/devel/freebsd/base/head/sys/kern/kern_timeout.c:731 #18 0xffffffff80bc24bc in softclock (arg=3D0xffffffff820acb40 ) at /home/devel/freebsd/base/head/sys/kern/kern_timeout.c:869 #19 0xffffffff80b6bb07 in intr_event_execute_handlers (p=3D, ie=3D) at /home/devel/freebsd/base/head/sys/kern/kern_intr.c= :1119 #20 ithread_execute_handlers (p=3D, ie=3D) at /home/devel/freebsd/base/head/sys/kern/kern_intr.c:1132 #21 ithread_loop (arg=3D) at /home/devel/freebsd/base/head/sys/kern/kern_intr.c:1212 #22 0xffffffff80b687f4 in fork_exit (callout=3D0xffffffff80b6b980 , arg=3D0xfffff800035f1dc0, frame=3D0xfffffe00779ceac0) at /home/devel/freebsd/base/head/sys/kern/kern_fork.c:1009 #23 --=20 You are receiving this mail because: You are the assignee for the bug.=