From owner-freebsd-net@freebsd.org Thu Oct 6 13:26:42 2016 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4AD96BE91F3 for ; Thu, 6 Oct 2016 13:26:42 +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 mx1.freebsd.org (Postfix) with ESMTPS id 2FC92A0C for ; Thu, 6 Oct 2016 13:26:42 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u96DQg3C077356 for ; Thu, 6 Oct 2016 13:26:42 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 209682] [panic] [netinet] arptimer race Date: Thu, 06 Oct 2016 13:26:42 +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: patch X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: hselasky@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-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: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Oct 2016 13:26:42 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209682 --- Comment #2 from Hans Petter Selasky --- Reproducable with recent 11-STABLE doing ifconfig up/down in sequence. --HPS 270 LLE_REMREF(lle); 271 lltable_unlink_entry(lle->lle_tbl, lle); 272 } 273 IF_AFDATA_UNLOCK(ifp); 274 275 size_t pkts_dropped =3D llentry_free(lle); 276 277 ARPSTAT_ADD(dropped, pkts_dropped); 278 ARPSTAT_INC(timeouts); 279 (kgdb) bt #0 doadump (textdump=3D1) at pcpu.h:221 #1 0xffffffff80ae755e in kern_reboot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:366 #2 0xffffffff80ae7b2b in vpanic (fmt=3D, ap=3D) at /usr/src/sys/kern/kern_shutdown.c:759 #3 0xffffffff80ae7963 in panic (fmt=3D0x0) at /usr/src/sys/kern/kern_shutdown.c:690 #4 0xffffffff80fc0361 in trap_fatal (frame=3D0xfffffe0f92146720, eva=3D952= ) at /usr/src/sys/amd64/amd64/trap.c:841 #5 0xffffffff80fc0553 in trap_pfault (frame=3D0xfffffe0f92146720, usermode= =3D0) at /usr/src/sys/amd64/amd64/trap.c:691 #6 0xffffffff80fbfafc in trap (frame=3D0xfffffe0f92146720) at /usr/src/sys/amd64/amd64/trap.c:442 #7 0xffffffff80fa2e41 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:236 #8 0xffffffff80ae2abb in __rw_wlock_hard (c=3D, tid= =3D, file=3D, line=3D)= at /usr/src/sys/kern/kern_rwlock.c:830 #9 0xffffffff80c60086 in arptimer (arg=3D) at /usr/src/sys/netinet/if_ether.c:265 #10 0xffffffff80b01d6a in softclock_call_cc (c=3D, cc= =3D, direct=3D) at /usr/src/sys/kern/kern_timeout.c:729 #11 0xffffffff80b022e4 in softclock (arg=3D) at /usr/src/sys/kern/kern_timeout.c:867 #12 0xffffffff80aa239f in intr_event_execute_handlers (p=3D, ie=3D) at /usr/src/sys/kern/kern_intr.c:1262 #13 0xffffffff80aa29b6 in ithread_loop (arg=3D) at /usr/src/sys/kern/kern_intr.c:1275 #14 0xffffffff80a9efe5 in fork_exit (callout=3D0xffffffff80aa28f0 , arg=3D0xfffff8000ad70700, frame=3D0xfffffe0f92146ac0) at /usr/src/sys/kern/kern_fork.c:1038 #15 0xffffffff80fa337e in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:611 #16 0x0000000000000000 in ?? () --=20 You are receiving this mail because: You are the assignee for the bug.=