From owner-freebsd-current@FreeBSD.ORG Fri Jun 8 08:10:52 2012 Return-Path: Delivered-To: current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9FF93106566B for ; Fri, 8 Jun 2012 08:10:52 +0000 (UTC) (envelope-from cvs-src@yandex.ru) Received: from forward12.mail.yandex.net (forward12.mail.yandex.net [IPv6:2a02:6b8:0:801::2]) by mx1.freebsd.org (Postfix) with ESMTP id 1688D8FC14 for ; Fri, 8 Jun 2012 08:10:52 +0000 (UTC) Received: from smtp14.mail.yandex.net (smtp14.mail.yandex.net [95.108.131.192]) by forward12.mail.yandex.net (Yandex) with ESMTP id B8758C216E8 for ; Fri, 8 Jun 2012 12:10:50 +0400 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1339143050; bh=dbn0bYTgvM7PnUv6rHZgWoZ7XGyK1sLIqZNA3n/SgJ4=; h=Message-ID:Date:From:MIME-Version:To:Subject:Content-Type: Content-Transfer-Encoding; b=L7Xs2oha4v2+h3mPySM+bwaUCbdxFR3AKWZgHJIMhtCPuTk4PAv+7NwTbH9eTkPhl xlr2Eggr1pQk42UFV8omW7AtkLSdrV38kt9Va7OFuAMcN/afjbw42BaC98krl8VbxD H5euBeZKQToRG1f3f55GTQeH+ACGK1/oY0Z/5rn4= Received: from smtp14.mail.yandex.net (localhost [127.0.0.1]) by smtp14.mail.yandex.net (Yandex) with ESMTP id A35B31B6064A for ; Fri, 8 Jun 2012 12:10:50 +0400 (MSK) Received: from unknown (unknown [213.27.65.65]) by smtp14.mail.yandex.net (nwsmtp/Yandex) with ESMTP id AoAKYvSj-AoAuXdrt; Fri, 8 Jun 2012 12:10:50 +0400 X-Yandex-Rcpt-Suid: current@FreeBSD.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1339143050; bh=dbn0bYTgvM7PnUv6rHZgWoZ7XGyK1sLIqZNA3n/SgJ4=; h=Message-ID:Date:From:User-Agent:MIME-Version:To:Subject: Content-Type:Content-Transfer-Encoding; b=dU5j34992R5IFNT3SKwEIrsAHo/L4nOqLRYY44Sffe5keQPTeYrTfLYySsVM9duHq ou9m+G21oNaY3dY/nIOmH0ipdXQA0NzVKrhuZyztcnMsZQrheSeaoWhWodMoISTMcz SBr5J3G4bJM3c1q5B2iB2jk4srOXjIUA1ySJfwbQ= Message-ID: <4FD1B365.2010209@yandex.ru> Date: Fri, 08 Jun 2012 12:10:13 +0400 From: Ruslan Mahmatkhanov User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:12.0) Gecko/20120504 Thunderbird/12.0.1 MIME-Version: 1.0 To: current@FreeBSD.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Mailman-Approved-At: Fri, 08 Jun 2012 11:05:25 +0000 Cc: Subject: lock order reversal in sys/kern/vfs_mount.c X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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, 08 Jun 2012 08:10:52 -0000 Good day, After updating to yesterdays -current, I got this on boot: lock order reversal: 1st 0xfffffe0007b04c38 ufs (ufs) @ /usr/src/sys/kern/vfs_mount.c:1254 2nd 0xfffffe0007ed9478 devfs (devfs) @ /usr/src/sys/kern/vfs_subr.c:2158 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x2c witness_checkorder() at witness_checkorder+0x853 __lockmgr_args() at __lockmgr_args+0x113a vop_stdlock() at vop_stdlock+0x39 VOP_LOCK1_APV() at VOP_LOCK1_APV+0xbf _vn_lock() at _vn_lock+0x47 vget() at vget+0x7b devfs_allocv() at devfs_allocv+0x13f devfs_root() at devfs_root+0x4d dounmount() at dounmount+0x45c vfs_unmountall() at vfs_unmountall+0x4c kern_reboot() at kern_reboot+0x84b sys_reboot() at sys_reboot+0x68 amd64_syscall() at amd64_syscall+0x2e0 Xfast_syscall() at Xfast_syscall+0xf7 --- syscall (55, FreeBSD ELF64, sys_reboot), rip = 0x40ebbc, rsp = 0x7fffffffd6c8, rbp = 0x65 --- Reverting to old kernel (that was built about a week ago) helped to avoid this. Any thoughts? -- Regards, Ruslan Tinderboxing kills... the drives.