From owner-freebsd-bugs@freebsd.org Sat May 21 17:43:01 2016 Return-Path: Delivered-To: freebsd-bugs@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 2C75BB435F7 for ; Sat, 21 May 2016 17:43:01 +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 1166F1B43 for ; Sat, 21 May 2016 17:43:01 +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 u4LHh0r6028023 for ; Sat, 21 May 2016 17:43:00 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 209682] [panic] [netinet] arptimer race Date: Sat, 21 May 2016 17:43:01 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: dchagin@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: 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-bugs@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 May 2016 17:43:01 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209682 Bug ID: 209682 Summary: [panic] [netinet] arptimer race Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: dchagin@FreeBSD.org Fatal trap 9: general protection fault while in kernel mode cpuid =3D 2; apic id =3D 02 instruction pointer =3D 0x20:0xffffffff80774d1d stack pointer =3D 0x28:0xfffffe032dfe9420 frame pointer =3D 0x28:0xfffffe032dfe94f0 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 11 (swi4: clock (0)) #9 0xffffffff80cc289a in trap_check (frame=3D0xfffffe032dfe9370) at /home/git/head/sys/amd64/amd64/trap.c:658 #10 #11 0xffffffff80774d1d in _rw_wlock_cookie (c=3D0xdeadc0dedeadc2de, file=3D0xffffffff80e40db0 "/home/git/head/sys/netinet/if_ether.c", line=3D0x10a) at /home/git/head/sys/kern/kern_rwlock.c:264 #12 0xffffffff80a0c0a3 in arptimer (arg=3D0xfffff8000ffc3600) at /home/git/head/sys/netinet/if_ether.c:266 #13 0xffffffff807a663c in softclock_call_cc (c=3D0xfffff8000ffc36b8, cc=3D0xffffffff815f1280 , direct=3D0x0) at /home/git/head/sys/kern/kern_timeout.c:723 #14 0xffffffff807a6e6c in softclock (arg=3D0xffffffff815f1280 ) at /home/git/head/sys/kern/kern_timeout.c:861 #15 0xffffffff80724c48 in intr_event_execute_handlers (p=3D0xfffff80003df80= 00, ie=3D0xfffff80003e17500) at /home/git/head/sys/kern/kern_intr.c:1262 #16 0xffffffff80725a37 in ithread_execute_handlers (p=3D0xfffff80003df8000, ie=3D0xfffff80003e17500) at /home/git/head/sys/kern/kern_intr.c:1275 #17 0xffffffff80725866 in ithread_loop (arg=3D0xfffff80003e2e040) at /home/git/head/sys/kern/kern_intr.c:1356 #18 0xffffffff807201f9 in fork_exit (callout=3D0xffffffff807256f0 , arg=3D0xfffff80003e2e040, frame=3D0xfffffe032dfe9ac0) at /home/git/head/sys/kern/kern_fork.c:1035 #19 (kgdb) up 12 #12 0xffffffff80a0c0a3 in arptimer (arg=3D0xfffff8000ffc3600) at /home/git/head/sys/netinet/if_ether.c:266 266 IF_AFDATA_LOCK(ifp); (kgdb) l 261 262 callout_stop(&lle->lle_timer); 263 264 /* XXX: LOR avoidance. We still have ref on lle. */ 265 LLE_WUNLOCK(lle); 266 IF_AFDATA_LOCK(ifp); 267 LLE_WLOCK(lle); 268 269 /* Guard against race with other llentry_free(). */ 270 if (lle->la_flags & LLE_LINKED) { (kgdb) p *ifp Cannot access memory at address 0xdeadc0dedeadc0de --=20 You are receiving this mail because: You are the assignee for the bug.=