From owner-freebsd-bugs@FreeBSD.ORG Wed Nov 21 00:30:00 2012 Return-Path: Delivered-To: freebsd-bugs@smarthost.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id AD53D524 for ; Wed, 21 Nov 2012 00:30:00 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id 81E3C8FC13 for ; Wed, 21 Nov 2012 00:30:00 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id qAL0U0lF045980 for ; Wed, 21 Nov 2012 00:30:00 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id qAL0U0xE045979; Wed, 21 Nov 2012 00:30:00 GMT (envelope-from gnats) Resent-Date: Wed, 21 Nov 2012 00:30:00 GMT Resent-Message-Id: <201211210030.qAL0U0xE045979@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Bruce Marriner Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C063C4F0 for ; Wed, 21 Nov 2012 00:24:51 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id A89928FC0C for ; Wed, 21 Nov 2012 00:24:51 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.5/8.14.5) with ESMTP id qAL0OpkB055807 for ; Wed, 21 Nov 2012 00:24:51 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.5/8.14.5/Submit) id qAL0OpZZ055806; Wed, 21 Nov 2012 00:24:51 GMT (envelope-from nobody) Message-Id: <201211210024.qAL0OpZZ055806@red.freebsd.org> Date: Wed, 21 Nov 2012 00:24:51 GMT From: Bruce Marriner To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Subject: kern/173747: Fatal trap 12: page fault while in kernel mode when deleting files on ZFS pool X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Nov 2012 00:30:00 -0000 >Number: 173747 >Category: kern >Synopsis: Fatal trap 12: page fault while in kernel mode when deleting files on ZFS pool >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Nov 21 00:30:00 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Bruce Marriner >Release: 9.1-RC3 >Organization: >Environment: FreeBSD backup.ameristarfence.com 9.1-RC3 FreeBSD 9.1-RC3 #0 r242324: Tue Oct 30 00:58:57 UTC 2012 root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 >Description: I have a large ZFS pool (~9TB) that is 99% full. It is used for rsync backups using hard-links to create "daily snapshots". When trying to delete files the system is crashing and rebooting with the below error. I am able to move or write to the problem file but that does not solve the problem. I have run zfs scrub which repaired problems but this problem still exists afterwards. Fatal trap 12: page fault while in kernel mode cpuid = 5; apic id = 33 fault virtual address = 0x160 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff815cdc76 stack pointer = 0x28:0xffffff8685838870 frame pointer = 0x28:0xffffff8685838930 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 = 1788 (rm) trap number = 12 panic: page fault cpuid = 5 KDB: stack backtrace: #0 0xffffffff809208a6 at kdb_backtrace+0x66 #1 0xffffffff808ea8be at panic+0x1ce #2 0xffffffff80bd8240 at trap_fatal+0x290 #3 0xffffffff80bd857d at trap_pfault+0x1ed #4 0xffffffff80bd8b9e at trap+0x3ce #5 0xffffffff80bc315f at calltrap+0x8 #6 0xffffffff80c68504 at VOP_REMOVE_APV+0x34 #7 0xffffffff8098709d at kern_unlinkat+0x32d #8 0xffffffff80bd7ae6 at amd64_syscall+0x546 #9 0xffffffff80bc3447 at Xfast_syscall+0xf7 >How-To-Repeat: There are specific files that I know cause the problem. Trying to delete them causes the problem every time. >Fix: >Release-Note: >Audit-Trail: >Unformatted: