From owner-freebsd-current@FreeBSD.ORG Fri Dec 11 16:14:16 2009 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5F31F106566B for ; Fri, 11 Dec 2009 16:14:16 +0000 (UTC) (envelope-from pluknet@gmail.com) Received: from mail-bw0-f213.google.com (mail-bw0-f213.google.com [209.85.218.213]) by mx1.freebsd.org (Postfix) with ESMTP id DC1C18FC12 for ; Fri, 11 Dec 2009 16:14:15 +0000 (UTC) Received: by bwz5 with SMTP id 5so734348bwz.3 for ; Fri, 11 Dec 2009 08:14:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=7bdvG0hbFTn6tdu7VgGBhNJGKPW8lj41051XoOM67Co=; b=E9e/eRJcbp9AT4er1YMBgAtGS6dyfhyfGpAKixUSdV46UE1HgvdDAdhekfNgGYzX7v 77mPygSx7xknwNc9VTd9/wVtNKcONxL5f6KHrGh27iuzdFlMRZnLIvoaoZ+UvLVKpBBE T2OZswT9CjwnITsjd3Z06ERPje2bvS5JpxZWk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=ApfkKSg9qqx8Jhvwagu7M1I08OEzi48zitFwbzB6vvLHRqzT4wpoa/ijCgU8RSIMIK rBaBnL4zLMukWSWh+JdoVdai8+wlGzLMAubtfTGzybo89MYs/c7dYHFWGcPiIeuP8EhX TiuDmfD4ON4W0trGVzHoQmHuKDHinoTJQp184= MIME-Version: 1.0 Received: by 10.204.49.79 with SMTP id u15mr861429bkf.117.1260548053800; Fri, 11 Dec 2009 08:14:13 -0800 (PST) In-Reply-To: <4B225348.3010806@icyb.net.ua> References: <4B225348.3010806@icyb.net.ua> Date: Fri, 11 Dec 2009 19:14:13 +0300 Message-ID: From: pluknet To: Andriy Gapon Content-Type: text/plain; charset=ISO-8859-1 Cc: "current@freebsd.org" Subject: Re: acquiring duplicate lock of same type: "ftlk" 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, 11 Dec 2009 16:14:16 -0000 2009/12/11 Andriy Gapon : > > acquiring duplicate lock of same type: "ftlk" > 1st ftlk @ /usr/src/sys/compat/linux/linux_futex.c:177 > 2nd ftlk @ /usr/src/sys/compat/linux/linux_futex.c:203 > KDB: stack backtrace: > db_trace_self_wrapper() at 0xffffffff801b1b9a = db_trace_self_wrapper+0x2a > kdb_backtrace() at 0xffffffff80391542 = kdb_backtrace+0x32 > _witness_debugger() at 0xffffffff803a561c = _witness_debugger+0x2c > witness_checkorder() at 0xffffffff803a6640 = witness_checkorder+0x510 > _sx_xlock() at 0xffffffff80367f78 = _sx_xlock+0x88 > futex_get0() at 0xffffffff8055ba27 = futex_get0+0x1e7 > linux_sys_futex() at 0xffffffff8055c74a = linux_sys_futex+0x58a > ia32_syscall() at 0xffffffff8054a574 = ia32_syscall+0x2a4 > Xint0x80_syscall() at 0xffffffff80509425 = Xint0x80_syscall+0x95 Please, see this thread: http://lists.freebsd.org/pipermail/freebsd-emulation/2009-September/006786.html -- wbr, pluknet