From owner-freebsd-net@freebsd.org Sat Jan 28 18:21:27 2017 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 1B8BACC5DE3; Sat, 28 Jan 2017 18:21:27 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from zxy.spb.ru (zxy.spb.ru [195.70.199.98]) (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 D3F808E5; Sat, 28 Jan 2017 18:21:26 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from slw by zxy.spb.ru with local (Exim 4.86 (FreeBSD)) (envelope-from ) id 1cXXck-0009YM-7f; Sat, 28 Jan 2017 21:21:18 +0300 Date: Sat, 28 Jan 2017 21:21:18 +0300 From: Slawa Olhovchenkov To: freebsd-stable@freebsd.org, freebsd-net@freebsd.org Subject: LACP: Fatal trap 18: integer divide fault while in kernel mode Message-ID: <20170128182118.GH58505@zxy.spb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: slw@zxy.spb.ru X-SA-Exim-Scanned: No (on zxy.spb.ru); SAEximRunCond expanded to false 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: Sat, 28 Jan 2017 18:21:27 -0000 I am got panic on recent stable: Fatal trap 18: integer divide fault while in kernel mode cpuid = 3; apic id = 06 instruction pointer = 0x20:0xffffffff81453230 stack pointer = 0x28:0xfffffe3e56f46480 frame pointer = 0x28:0xfffffe3e56f464a0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 12 (swi4: clock (3)) trap number = 18 panic: integer divide fault cpuid = 3 KDB: stack backtrace: db_trace_self_wrapper() at 0xffffffff8032b3eb = db_trace_self_wrapper+0x2b/frame 0xfffffe3e56f460c0 vpanic() at 0xffffffff804e33a6 = vpanic+0x186/frame 0xfffffe3e56f46140 panic() at 0xffffffff804e3213 = panic+0x43/frame 0xfffffe3e56f461a0 trap_fatal() at 0xffffffff807b07c2 = trap_fatal+0x322/frame 0xfffffe3e56f461f0 trap() at 0xffffffff807b0475 = trap+0x6b5/frame 0xfffffe3e56f463b0 calltrap() at 0xffffffff807946b1 = calltrap+0x8/frame 0xfffffe3e56f463b0 --- trap 0x12, rip = 0xffffffff81453230, rsp = 0xfffffe3e56f46480, rbp = 0xfffffe3e56f464a0 --- lacp_select_tx_port() at 0xffffffff81453230 = lacp_select_tx_port+0x70/frame 0xfffffe3e56f464a0 lagg_lacp_start() at 0xffffffff814504ae = lagg_lacp_start+0xe/frame 0xfffffe3e56f464c0 lagg_transmit() at 0xffffffff8144e73f = lagg_transmit+0xbf/frame 0xfffffe3e56f46530 ether_output() at 0xffffffff805f30bc = ether_output+0x71c/frame 0xfffffe3e56f465d0 ip_output() at 0xffffffff80629935 = ip_output+0x1585/frame 0xfffffe3e56f46720 tcp_output() at 0xffffffff806b9e16 = tcp_output+0x1876/frame 0xfffffe3e56f468c0 tcp_timer_rexmt() at 0xffffffff806c572f = tcp_timer_rexmt+0x4df/frame 0xfffffe3e56f46900 softclock_call_cc() at 0xffffffff804fd1b6 = softclock_call_cc+0x156/frame 0xfffffe3e56f469b0 softclock() at 0xffffffff804fd754 = softclock+0x94/frame 0xfffffe3e56f469e0 intr_event_execute_handlers() at 0xffffffff8049d15f = intr_event_execute_handlers+0x20f/frame 0xfffffe3e56f46a20 ithread_loop() at 0xffffffff8049d766 = ithread_loop+0xc6/frame 0xfffffe3e56f46a70 fork_exit() at 0xffffffff80499e25 = fork_exit+0x85/frame 0xfffffe3e56f46ab0 fork_trampoline() at 0xffffffff80794bee = fork_trampoline+0xe/frame 0xfffffe3e56f46ab0 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- (kgdb) info line *0xffffffff81453230 Line 848 of "/usr/src/sys/modules/if_lagg/../../net/ieee8023ad_lacp.c" starts at address 0xffffffff8145322e and ends at 0xffffffff81453233 . Do I need to create PR?