From owner-freebsd-current@freebsd.org Wed Jun 20 09:10:03 2018 Return-Path: Delivered-To: freebsd-current@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 1EE31100CCB3 for ; Wed, 20 Jun 2018 09:10:03 +0000 (UTC) (envelope-from pho@holm.cc) 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 A667771F8B for ; Wed, 20 Jun 2018 09:10:02 +0000 (UTC) (envelope-from pho@holm.cc) Received: by mailman.ysv.freebsd.org (Postfix) id 6298E100CCAD; Wed, 20 Jun 2018 09:10:02 +0000 (UTC) Delivered-To: current@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 507DB100CCAC for ; Wed, 20 Jun 2018 09:10:02 +0000 (UTC) (envelope-from pho@holm.cc) Received: from relay01.pair.com (relay01.pair.com [209.68.5.15]) (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 0366371F88 for ; Wed, 20 Jun 2018 09:10:01 +0000 (UTC) (envelope-from pho@holm.cc) Received: from x2.osted.lan (87-58-223-204-dynamic.dk.customer.tdc.net [87.58.223.204]) by relay01.pair.com (Postfix) with ESMTP id 725C7D00BA1 for ; Wed, 20 Jun 2018 05:10:00 -0400 (EDT) Received: from x2.osted.lan (localhost [127.0.0.1]) by x2.osted.lan (8.15.2/8.15.2) with ESMTPS id w5K99vK0000169 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 20 Jun 2018 11:09:57 +0200 (CEST) (envelope-from pho@x2.osted.lan) Received: (from pho@localhost) by x2.osted.lan (8.15.2/8.15.2/Submit) id w5K99vC0000168 for current@freebsd.org; Wed, 20 Jun 2018 11:09:57 +0200 (CEST) (envelope-from pho) Date: Wed, 20 Jun 2018 11:09:57 +0200 From: Peter Holm To: current@freebsd.org Subject: Page fault in udp_usrreq.c:823 Message-ID: <20180620090957.GA130@x2.osted.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.0 (2018-05-17) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Jun 2018 09:10:03 -0000 20180620 10:32:47 all (1/1): udp.sh Kernel page fault with the following non-sleepable locks held: shared rw udpinp (udpinp) r = 0 (0xfffff80bbc808d78) locked @ netinet/in_pcb.c:2398 stack backtrace: #0 0xffffffff80c00733 at witness_debugger+0x73 #1 0xffffffff80c01b11 at witness_warn+0x461 #2 0xffffffff81075763 at trap_pfault+0x53 #3 0xffffffff81074d7a at trap+0x2ba #4 0xffffffff8105076c at calltrap+0x8 #5 0xffffffff80dd21b0 at udp_ctlinput+0x50 #6 0xffffffff80d3081d at icmp_input+0x96d #7 0xffffffff80d316d7 at ip_input+0x3f7 #8 0xffffffff80cc0a92 at netisr_dispatch_src+0xa2 #9 0xffffffff80ca3ebe at ether_demux+0x16e #10 0xffffffff80ca5377 at ether_nh_input+0x427 #11 0xffffffff80cc0a92 at netisr_dispatch_src+0xa2 #12 0xffffffff80ca437f at ether_input+0x8f #13 0xffffffff80cbc500 at iflib_rxeof+0xc90 #14 0xffffffff80cb6b6f at _task_fn_rx+0x7f #15 0xffffffff80bdd209 at gtaskqueue_run_locked+0x139 #16 0xffffffff80bdcf88 at gtaskqueue_thread_loop+0x88 #17 0xffffffff80b54514 at fork_exit+0x84 Fatal trap 12: page fault while in kernel mode cpuid = 10; apic id = 0a fault virtual address = 0x8 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80dd2423 stack pointer = 0x0:0xfffffe00004a5500 frame pointer = 0x0:0xfffffe00004a55a0 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 = 0 (if_io_tqg_10) [ thread pid 0 tid 100069 ] Stopped at udp_common_ctlinput+0x263: cmpq $0,0x8(%rax) db> Details @ https://people.freebsd.org/~pho/stress/log/udp_usrreq.txt -- Peter