From owner-freebsd-current@FreeBSD.ORG Sun May 10 19:58:28 2015 Return-Path: Delivered-To: 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 21DC0B93 for ; Sun, 10 May 2015 19:58:28 +0000 (UTC) Received: from mail-wi0-x22c.google.com (mail-wi0-x22c.google.com [IPv6:2a00:1450:400c:c05::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B5ED31350 for ; Sun, 10 May 2015 19:58:27 +0000 (UTC) Received: by wizk4 with SMTP id k4so83030115wiz.1 for ; Sun, 10 May 2015 12:58:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=eitanadler.com; s=0xdeadbeef; h=mime-version:from:date:message-id:subject:to:content-type; bh=7p+TCujF3kWf3VSeCk0EHnyico5y7BKjWiYPUB+ZhZ0=; b=SruhfkduETQfV2A3MmdZi3v15ztRa8Nycy+esVFARG6N+2nhA5Irp+ookd0rCZixar o1PdM6H3Evt5ixt0KTQi3F+4vv+HZ8YfbvchYFfb0m63vHwDFiWTOBZ4RP6CElZvqOrh afDuX2Sv2mFouJe1T60BJ/id2YTgeFtHsDsd0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-type; bh=7p+TCujF3kWf3VSeCk0EHnyico5y7BKjWiYPUB+ZhZ0=; b=f/cvGO+J/qH/hfv8ZpC7fw8Lm0fCrr4Vu003AnweysMPYml8hja+FOJDkYo+htNF47 pNDlsfCw6Rq2NZPcdAliC75sqBSN/ZG5wD/H0jDlzrvwtMewXl4a4zrBX3i4XuhhUlWb LJlZ2BJx3Qx0C/nZMIj1BC6ZOf8PHEUtP+bViJwiRqsoIC6Fc4VxDa4cTRhET+d8T6XG 9IXM5RPNqzdjtD2qqIAuNxGJ5G8Oa4tHJpBbiYtjTe07Tx8ZUcjO3KsaPV4+Tgmm7uAp zLrqI1AU+rBPvh7VVR66Zsg5o6kyyQZmeYb2cpRylEz5FK2PQn+0Q8ELCGo7+LKsjkii xbIw== X-Gm-Message-State: ALoCoQmEjMpvtECW0aD4LOJgrRspAlkGQsp7asjkWmKCsQM44vZyfXXO2jKrFMXX6kkPrqBUatgg X-Received: by 10.180.38.70 with SMTP id e6mr13414713wik.91.1431287905780; Sun, 10 May 2015 12:58:25 -0700 (PDT) MIME-Version: 1.0 Received: by 10.28.20.75 with HTTP; Sun, 10 May 2015 12:57:55 -0700 (PDT) From: Eitan Adler Date: Sun, 10 May 2015 12:57:55 -0700 Message-ID: Subject: kernel panic with ZFS & VM subsystems: refcount == 1 To: "current@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 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: Sun, 10 May 2015 19:58:28 -0000 I left my computer on overnight and came back to find it sitting in ddb. Here is the backtrace and a little more information. Let me know what other debugging information I can provide. I have vmcore.1 and /boot/kernel FreeBSD gravity.local 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r282701: Sat May 9 18:16:45 PDT 2015 eitan@gravity.local:/usr/obj/usr/src/sys/EADLER amd64 gdb$ b gdb$ bt #0 doadump (textdump=Unhandled dwarf expression opcode 0x93 ) at pcpu.h:221 #1 0xffffffff80353f86 in db_fncall (dummy1=, dummy2=, dummy3=, dummy4=) at /usr/src/sys/ddb/db_command.c:568 #2 0xffffffff80353c6c in db_command (cmd_table=0x0) at /usr/src/sys/ddb/db_command.c:440 #3 0xffffffff803539d4 in db_command_loop () at /usr/src/sys/ddb/db_command.c:493 #4 0xffffffff80356510 in db_trap (type=, code=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/ddb/db_main.c:251 #5 0xffffffff80948f0e in kdb_trap (type=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/kern/subr_kdb.c:654 #6 0xffffffff80d2262b in trap (frame=0xfffffe0232d601e0) at /usr/src/sys/amd64/amd64/trap.c:540 #7 0xffffffff80d03302 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:235 #8 0xffffffff809485fe in kdb_enter (why=0xffffffff80fbf391 "panic", msg=0x80
) at cpufunc.h:63 #9 0xffffffff8090c1b9 in vpanic (fmt=, ap=) at /usr/src/sys/kern/kern_shutdown.c:737 #10 0xffffffff8090c002 in kassert_panic (fmt=) at /usr/src/sys/kern/kern_shutdown.c:634 #11 0xffffffff80bb03ea in vm_object_zdtor (mem=0xfffff8019f407400, size=, arg=0xfffffe0232d60190) at /usr/src/sys/vm/vm_object.c:169 #12 0xffffffff80b9d3d0 in uma_zfree_arg (zone=0xfffff8023f5de680, item=0xfffff8019f407400, udata=0x0) at /usr/src/sys/vm/uma_core.c:2723 #13 0xffffffff80bc378e in vnode_pager_alloc (handle=0xfffff8017bdb23b0, size=0xe000, prot=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/vm/vnode_pager.c:240 #14 0xffffffff80bc4051 in vnode_create_vobject (vp=0xfffff8017bdb23b0, isize=, td=0xfffff800896ba940) at /usr/src/sys/vm/vnode_pager.c:144 #15 0xffffffff81c80050 in zfs_freebsd_open (ap=0xfffffe0232d60668) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:6049 #16 0xffffffff80e62a81 in VOP_OPEN_APV (vop=, a=) at vnode_if.c:467 #17 0xffffffff809d1372 in vn_open_vnode (vp=0xfffff8017bdb23b0, fmode=Unhandled dwarf expression opcode 0x93 ) at vnode_if.h:196 #18 0xffffffff809d0f24 in vn_open_cred (ndp=0xfffffe0232d60880, flagp=0xfffffe0232d6095c, cmode=0x0, vn_open_flags=0xfffff800, cred=0xfffffe0232d60190, fp=0x0) at /usr/src/sys/kern/vfs_vnops.c:264 #19 0xffffffff809ca327 in kern_openat (td=0xfffff800896ba940, fd=0xffffff9c, path=0x800daca1f
, pathseg=UIO_USERSPACE, flags=Cannot access memory at address 0x80 ) at /usr/src/sys/kern/vfs_syscalls.c:1090 #20 0xffffffff80d2354f in amd64_syscall (td=0xfffff800896ba940, traced=0x0) at subr_syscall.c:133 #21 0xffffffff80d035eb in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:395 #22 0x0000000800d98c7a in ?? () Previous frame inner to this frame (corrupt stack?) Current language: auto; currently minimal gdb$ info frame Stack level 10, frame at 0xfffffe0232d603b0: rip = 0xffffffff8090c002 in kassert_panic (/usr/src/sys/kern/kern_shutdown.c:634); saved rip 0xffffffff 80bb03ea called by frame at 0xfffffe0232d603d0, caller of frame at 0xfffffe0232d60340 source language minimal. Arglist at 0xfffffe0232d603a0, args: fmt= Locals at 0xfffffe0232d603a0, Previous frame's sp is 0xfffffe0232d603b0 Saved registers: rax at 0xfffffe0232d60210, rbx at 0xfffffe0232d60388, rcx at 0xfffffe0232d601f8, rdx at 0xfffffe0232d6 01f0, rsi at 0xfffffe0232d601e8, rdi at 0xfffffe0232d601e0, rbp at 0xfffffe0232d603a0, r8 at 0xfffffe0232d60200, r9 at 0xfffffe0232d60208, r10 at 0xfffffe0232d60228, r11 at 0xfffffe0232d60230, r12 at 0xfffffe0232d60318, r13 at 0xfffffe0232d60240, r14 at 0xfffffe0232d60390, r15 at 0xfffffe0232d60398, rip at 0xfffffe0232d603a8, eflags at 0xfffffe0232d60288, cs at 0xfffffe0232d60280, ss at 0xfffffe0232d60298 gdb$ up #11 0xffffffff80bb03ea in vm_object_zdtor (mem=0xfffff8019f407400, size=, arg=0xfff ffe0232d60190) at /usr/src/sys/vm/vm_object.c:169 169 KASSERT(object->ref_count == 0, gdb$ info frame Stack level 11, frame at 0xfffffe0232d603d0: rip = 0xffffffff80bb03ea in vm_object_zdtor (/usr/src/sys/vm/vm_object.c:169); saved rip 0xffffffff80b9 d3d0 called by frame at 0xfffffe0232d60430, caller of frame at 0xfffffe0232d603b0 source language minimal. Arglist at 0xfffffe0232d603c0, args: mem=0xfffff8019f407400, size=, arg=0xfffffe02 32d60190 Locals at 0xfffffe0232d603c0, Previous frame's sp is 0xfffffe0232d603d0 Saved registers: rax at 0xfffffe0232d60210, rbx at 0xfffffe0232d603b8, rcx at 0xfffffe0232d601f8, rdx at 0xfffffe0232d6 01f0, rsi at 0xfffffe0232d601e8, rdi at 0xfffffe0232d601e0, rbp at 0xfffffe0232d603c0, r8 at 0xfffffe0232d60200, r9 at 0xfffffe0232d60208, r10 at 0xfffffe0232d60228, r11 at 0xfffffe0232d60230, r12 at 0xfffffe0232d60318, r13 at 0xfffffe0232d60240, r14 at 0xfffffe0232d60390, r15 at 0xfffffe0232d60398, rip at 0xfffffe0232d603c8, eflags at 0xfffffe0232d60288, cs at 0xfffffe0232d60280, ss at 0xfffffe0232d60298 -- Eitan Adler