From owner-freebsd-stable@freebsd.org Wed Dec 30 00:59:44 2015 Return-Path: Delivered-To: freebsd-stable@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 EE623A55A5F for ; Wed, 30 Dec 2015 00:59:43 +0000 (UTC) (envelope-from oliver.pinter@hardenedbsd.org) 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 D01771C20 for ; Wed, 30 Dec 2015 00:59:43 +0000 (UTC) (envelope-from oliver.pinter@hardenedbsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id CDF4BA55A5C; Wed, 30 Dec 2015 00:59:43 +0000 (UTC) Delivered-To: stable@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 B529CA55A5A for ; Wed, 30 Dec 2015 00:59:43 +0000 (UTC) (envelope-from oliver.pinter@hardenedbsd.org) Received: from mail-wm0-x22c.google.com (mail-wm0-x22c.google.com [IPv6:2a00:1450:400c:c09::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 47AE21C1D for ; Wed, 30 Dec 2015 00:59:43 +0000 (UTC) (envelope-from oliver.pinter@hardenedbsd.org) Received: by mail-wm0-x22c.google.com with SMTP id f206so60720359wmf.0 for ; Tue, 29 Dec 2015 16:59:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hardenedbsd-org.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=NJVrHh8XaLAFAagH5m/2BMID+1TeEhzNKBNxeWN2/Jo=; b=qO28jnFdyf45qlqWXCojkyycnLxoJ1gtcViTxQiXNaMkvOMvG9WIIL99ry9Cf7rXX8 hF3vhzTEj9zfC0sWJowkYRVKzakCSNuKM3QsXhZ9FYy4qFO4Khuo8PRGYVwd5YZVFKg+ bsW3fWssBkzR5IsLnjXkhY/dZHMVEbvsQPM0/cDgCXzun5g50Iw1tlYESBH0SJduhNOX OHZqdHn6yHq4kg+KiVFaMo99kv9quE2M9WwDfZKJoKVJ9dqBel1tSQmh1NY0IvFf4Veb cbKApBuEaZR/g4Y4YAp65+gZHffcI6MJ3NQXg4q3jtyEt8F/7zbpHAOfnDovEry5H4Wq SDjw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=NJVrHh8XaLAFAagH5m/2BMID+1TeEhzNKBNxeWN2/Jo=; b=kHmeZiBnuErnSfvKmUgOGErecjEns/t+KjHq+dwww39KHhaZkvmi9IjKqHSMXjOD9p jVFO6vwSZoe8Rnuk3I5yLxRy3fWBgHVSRua2s/IW3tcYJlOdY4Ep+u/3QqTovt9s7wy/ wp1IilVSNHNF2o4P4ZdowM7PIp7yn7E8fQNv/DOCWCS23IYjWuhRnRnJK3YdeIwkzPLo Meek2FL26aATGwKxNK5It29uBGZ7uABfJ0Ib0FzY2JGFFXf/VObyaJJ22D65jfmNfwZY EEjtTtBcZcmlIhfhqjRE+105sedbgQwzT5hq5G0++fHiz285+3mUnVNw84OV9+Ydeprr U23g== X-Gm-Message-State: ALoCoQk4t8CF12wbzzp6MN7UopF7KJ/V8C57mZhtalyWVduisRzCCIDrNrc8Vh+cqGLFyH/CcJ10QCQpslDhFKrN6JwdGaH7WQRbQCLb/Fa8CX70Ft4EdKM= MIME-Version: 1.0 X-Received: by 10.28.228.87 with SMTP id b84mr19639542wmh.81.1451437181824; Tue, 29 Dec 2015 16:59:41 -0800 (PST) Received: by 10.194.85.167 with HTTP; Tue, 29 Dec 2015 16:59:41 -0800 (PST) In-Reply-To: <3290231C-6C43-4913-999C-859CAF30DEEB@alumni.tu-berlin.de> References: <3290231C-6C43-4913-999C-859CAF30DEEB@alumni.tu-berlin.de> Date: Wed, 30 Dec 2015 01:59:41 +0100 Message-ID: Subject: Re: new LORs on 10-STABLE From: Oliver Pinter To: Florian Ermisch Cc: stable@freebsd.org, will@freebsd.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Dec 2015 00:59:44 -0000 On 12/30/15, Florian Ermisch wrote: > Quoting asomers@ on the current list: > "Adding Will@. I think he was working on this LOR at one point" > > No idea what a LOR (Lock Order R=E2=80=A6?) is (yet) but might have R as reversal, see the first line of your log :) > the same cause as the issue I've posted on the current list > earlier today*. > > Regards, Florian > > *) my trace can also be found under > https://gist.github.com/a342d0381a6b7ac8b313 > > Am 30. Dezember 2015 01:26:00 MEZ, schrieb Oliver Pinter > : >> Hi All! >> >> I get these new LORs with a recent 10-STABLE (~10-stable from today) >> branch: >> >> LOR1: >> >> [12] lock order reversal: >> [12] 1st 0xfffff8000d1ea7c8 ufs (ufs) @ >> /usr/src/sys/kern/vfs_mount.c:1224 >> [12] 2nd 0xfffff8000d1eb240 devfs (devfs) @ >> /usr/src/sys/kern/vfs_subr.c:2192 >> [12] KDB: stack backtrace: >> [12] db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame >> 0xfffffe0465ef9170 >> [12] kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe0465ef9220 >> [12] witness_checkorder() at witness_checkorder+0xe12/frame >> 0xfffffe0465ef92b0 >> [12] __lockmgr_args() at __lockmgr_args+0x9ea/frame 0xfffffe0465ef93f0 >> [12] vop_stdlock() at vop_stdlock+0x3c/frame 0xfffffe0465ef9410 >> [12] VOP_LOCK1_APV() at VOP_LOCK1_APV+0xd9/frame 0xfffffe0465ef9440 >> [12] _vn_lock() at _vn_lock+0xaa/frame 0xfffffe0465ef94b0 >> [12] vget() at vget+0x67/frame 0xfffffe0465ef94f0 >> [12] devfs_allocv() at devfs_allocv+0xfd/frame 0xfffffe0465ef9540 >> [12] devfs_root() at devfs_root+0x43/frame 0xfffffe0465ef9570 >> [12] vflush() at vflush+0x78/frame 0xfffffe0465ef96c0 >> [12] devfs_unmount() at devfs_unmount+0x38/frame 0xfffffe0465ef96f0 >> [12] dounmount() at dounmount+0x524/frame 0xfffffe0465ef9770 >> [12] sys_unmount() at sys_unmount+0x3c6/frame 0xfffffe0465ef98a0 >> [12] amd64_syscall() at amd64_syscall+0x2a8/frame 0xfffffe0465ef99b0 >> [12] Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0465ef99b0 >> [12] --- syscall (22, FreeBSD ELF64, sys_unmount), rip =3D >> 0x102e573755a, rsp =3D 0x62a395ff4318, rbp =3D 0x62a395ff4470 --- >> >> LOR2: >> [13] lock order reversal: >> [13] 1st 0xfffff8000d3feb78 ufs (ufs) @ >> /usr/src/sys/kern/vfs_subr.c:2192 >> [13] 2nd 0xfffffe03df2460d8 bufwait (bufwait) @ >> /usr/src/sys/ufs/ffs/ffs_vnops.c:262 >> [13] 3rd 0xfffff8000d33a5f0 ufs (ufs) @ >> /usr/src/sys/kern/vfs_subr.c:2192 >> [13] KDB: stack backtrace: >> [13] db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame >> 0xfffffe0465ed0b30 >> [13] kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe0465ed0be0 >> [13] witness_checkorder() at witness_checkorder+0xe12/frame >> 0xfffffe0465ed0c70 >> [13] __lockmgr_args() at __lockmgr_args+0x9ea/frame 0xfffffe0465ed0db0 >> [13] ffs_lock() at ffs_lock+0x84/frame 0xfffffe0465ed0e00 >> [13] VOP_LOCK1_APV() at VOP_LOCK1_APV+0xd9/frame 0xfffffe0465ed0e30 >> [13] _vn_lock() at _vn_lock+0xaa/frame 0xfffffe0465ed0ea0 >> [13] vget() at vget+0x67/frame 0xfffffe0465ed0ee0 >> [13] vfs_hash_get() at vfs_hash_get+0xe1/frame 0xfffffe0465ed0f30 >> [13] ffs_vgetf() at ffs_vgetf+0x40/frame 0xfffffe0465ed0fc0 >> [13] softdep_sync_buf() at softdep_sync_buf+0xac0/frame >> 0xfffffe0465ed10a0 >> [13] ffs_syncvnode() at ffs_syncvnode+0x286/frame 0xfffffe0465ed1120 >> [13] ffs_truncate() at ffs_truncate+0x6ad/frame 0xfffffe0465ed1300 >> [13] ufs_direnter() at ufs_direnter+0x81a/frame 0xfffffe0465ed13c0 >> [13] ufs_makeinode() at ufs_makeinode+0x576/frame 0xfffffe0465ed1570 >> [13] ufs_create() at ufs_create+0x2d/frame 0xfffffe0465ed1590 >> [13] VOP_CREATE_APV() at VOP_CREATE_APV+0xcb/frame 0xfffffe0465ed15c0 >> [13] vn_open_cred() at vn_open_cred+0x2c3/frame 0xfffffe0465ed1720 >> [13] kern_openat() at kern_openat+0x26d/frame 0xfffffe0465ed18a0 >> [13] amd64_syscall() at amd64_syscall+0x2a8/frame 0xfffffe0465ed19b0 >> [13] Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0465ed19b0 >> [13] --- syscall (499, FreeBSD ELF64, sys_openat), rip =3D >> 0x29173acbbaa, rsp =3D 0x6a7c0c683d08, rbp =3D 0x6a7c0c683de0 --- >> _______________________________________________ >> freebsd-stable@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to >> "freebsd-stable-unsubscribe@freebsd.org" > >