From owner-freebsd-current@FreeBSD.ORG Fri Oct 17 21:12:36 2014 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 06A3EDB8 for ; Fri, 17 Oct 2014 21:12:36 +0000 (UTC) Received: from zhbdzmsp-smta17.bluewin.ch (zhbdzmsp-smta17.bluewin.ch [195.186.99.133]) by mx1.freebsd.org (Postfix) with ESMTP id 8EA41E6F for ; Fri, 17 Oct 2014 21:12:34 +0000 (UTC) Received: from [195.186.227.131] ([195.186.227.131:60629] helo=zhhdzmsp-smta14.bluewin.ch) by zhbdzmsp-smta17.bluewin.ch (envelope-from ) (ecelerity 3.5.7.40067 r(Platform:3.5.7.0)) with ESMTP id C7/95-26555-FF581445; Fri, 17 Oct 2014 21:11:27 +0000 Received: from noxon.firefly (176.127.15.207) by zhhdzmsp-smta14.bluewin.ch (8.5.142) (authenticated as tobias.berner) id 52330D9E1A2DF99B; Fri, 17 Oct 2014 21:11:27 +0000 From: "Tobias C. Berner" To: 'Current Current' Subject: kernel page fault with nfs Date: Fri, 17 Oct 2014 23:11:26 +0200 Message-ID: <3430961.Iq02vNgBU7@noxon.firefly> User-Agent: KMail/4.14.2 (FreeBSD/11.0-CURRENT; KDE/4.14.2; amd64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Mailman-Approved-At: Fri, 17 Oct 2014 21:45:59 +0000 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 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: Fri, 17 Oct 2014 21:12:36 -0000 Hi For some days now I've had problems with my current (last test with r273178M). Sometimes when accessing a nfs-share there is a pagefault: ####################################################### Fatal trap 12: page fault while in kernel mode cpuid = 7; apic id = 07 fault virtual address = 0xfffffe07cfe60400 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80d4d4b6 stack pointer = 0x28:0xfffffe086088b380 frame pointer = 0x28:0xfffffe086088b3f0 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 = 43868 (mplayer) #0 0xffffffff80926d29 in shutdown_nice (howto=1) at /usr/src/sys/kern/kern_shutdown.c:207 #1 0xffffffff80926a2d in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:444 #2 0xffffffff80926f80 in panic (fmt=0x104
) at /usr/src/sys/kern/kern_shutdown.c:698 #3 0xffffffff8035f147 in panic_cmd_del (arg=0x0) at /usr/src/sys/ddb/db_command.c:244 #4 0xffffffff8035ed5d in db_command (cmd_table=0x0) at /usr/src/sys/ddb/db_command.c:439 #5 0xffffffff8035ead4 in db_command_loop () at /usr/src/sys/ddb/db_command.c:488 #6 0xffffffff803615e0 in db_trap (type=, code=0) at /usr/src/sys/ddb/db_main.c:247 #7 0xffffffff80966db1 in kdb_trap (type=12, code=0, tf=0xfffffe086088b2d0) at /usr/src/sys/kern/subr_kdb.c:626 #8 0xffffffff80d4f92c in trap_fatal (frame=0xfffffe086088b2d0, eva=) at /usr/src/sys/amd64/amd64/trap.c:835 #9 0xffffffff80d4fcbc in trap_pfault (frame=0xfffffe086088b2d0, usermode=0) at atomic.h:161 #10 0xffffffff80d4f2de in trap (frame=0xfffffe086088b2d0) at /usr/src/sys/amd64/amd64/trap.c:594 #11 0xffffffff80d33822 in Xtss () at /usr/src/sys/amd64/amd64/exception.S:154 #12 0xffffffff80d4d4b6 in stack_save_td (st=, td=) at /usr/src/sys/amd64/amd64/stack_machdep.c:74 #13 0xffffffff809f30b2 in foffset_unlock (fp=, val=, flags=) at /usr/src/sys/kern/vfs_vnops.c:700 #14 0xffffffff8082faad in ncl_bioread (vp=0xfffff80201dd7490, uio=0xfffffe086088b7d8, ioflag=, cred=0xfffff8015816a600) at /usr/src/sys/fs/nfsclient/nfs_clbio.c:511 #15 0xffffffff80e64381 in VOP_MARKATIME_APV (vop=, a=0xfffffe086088b650) at vnode_if.c:856 #16 0xffffffff809f4dd5 in vn_read (fp=0xfffff80272490cd0, uio=0xfffffe086088b7d8, active_cred=0xfffff8015816a600, flags=128, td=0xfffff80000000000) at vnode_if.h:859 #17 0xffffffff809f5502 in get_advice (fp=0xfffffe086088b730, uio=0x400) at /usr/src/sys/kern/vfs_vnops.c:729 #18 0xffffffff809f2b80 in vn_io_fault1 () at /usr/src/sys/kern/vfs_vnops.c:1058 #19 0xffffffff809f0d3b in vn_io_fault (fp=0xfffff80272490cd0, uio=0xfffffe086088b970, active_cred=0x400, flags=128, td=0xfffff80000000000) at /usr/src/sys/kern/vfs_vnops.c:128 #20 0xffffffff80981d95 in freebsd6_pread (td=0xfffff802d93204a8, uap=0xfffff9fb094c00a8) at /usr/src/sys/kern/sys_generic.c:217 #21 0xffffffff80981ab8 in sys_cap_fcntls_get (td=, uap=0x800) at /usr/src/sys/kern/sys_capability.c:576 #22 0xffffffff80981a43 in sys_cap_fcntls_get (td=, uap=0x0) at sx.h:183 #23 0xffffffff80d503cb in amd64_syscall (td=0x45e400, traced=0) at subr_syscall.c:87 #24 0xffffffff80d33b0b in Xprot () at /usr/src/sys/amd64/amd64/exception.S:324 #25 0x0000000806a7fe6a in ?? () ################################################## Any hints would be appreciated. Please let me know if further information is required. Thanks in advance, Tobias