From owner-freebsd-emulation@freebsd.org Wed Mar 9 07:40:09 2016 Return-Path: Delivered-To: freebsd-emulation@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 9AA7AAC734A for ; Wed, 9 Mar 2016 07:40:09 +0000 (UTC) (envelope-from nbe@renzel.net) Received: from nijmegen.renzel.net (mx1.renzel.net [195.243.213.130]) by mx1.freebsd.org (Postfix) with ESMTP id 64B8CC31 for ; Wed, 9 Mar 2016 07:40:08 +0000 (UTC) (envelope-from nbe@renzel.net) Received: from dublin.vkf.isb.de.renzel.net (unknown [10.0.0.80]) by nijmegen.renzel.net (smtpd) with ESMTP id 613011414869 for ; Wed, 9 Mar 2016 08:39:59 +0100 (CET) Received: from asbach.renzel.net (unknown [172.18.96.1]) by dublin.vkf.isb.de.renzel.net (Postfix) with ESMTP id 56D62A9C22 for ; Wed, 9 Mar 2016 08:39:59 +0100 (CET) Content-Type: text/plain; charset="ISO-8859-1" Message-ID: <5463752.mgVZH8y5u3@asbach.renzel.net> From: Nils Beyer Organization: VKF Renzel GmbH Date: Wed, 09 Mar 2016 08:39:58 +0100 User-Agent: KNode/4.14.3 Content-Transfer-Encoding: 7Bit Subject: Re: citrix_ica - "wfica" generates deadlock in linux_sys_futex... To: freebsd-emulation@freebsd.org References: <1710849.HCaPmFIAXo@asbach.renzel.net> <20160308075527.GA29364@chd.heemeyer.club> <1794078.TnZCHkfeGo@asbach.renzel.net> <20160308085140.GA30833@chd.heemeyer.club> <2225619.DhA8sIh2h8@asbach.renzel.net> <20160308093009.GA31396@chd.heemeyer.club> <20160308115018.GM67250@kib.kiev.ua> Lines: 26 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.98 at nijmegen.renzel.net X-Virus-Status: Clean X-Spam-Status: No, score=-7.0 required=7.0 tests=BAYES_00,UNPARSEABLE_RELAY autolearn=ham version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on nijmegen.renzel.net X-BeenThere: freebsd-emulation@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Development of Emulators of other operating systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Mar 2016 07:40:09 -0000 Hi Konstantin, Konstantin Belousov wrote: >> this is strange as no ipc changes are made in stable/10 > > There was one interesting change, AFAIR. > > Check the value of sysctl kern.ipc.shm_allow_removed, and if it's value > is one, change it to zero. unfortunately, that doesn't make any difference. Nevertheless, I need that sysctl enabled for "chromium". And it needs to be enabled for "wfica" under 10.2 kernel as well. For what it's worth, here's "procstat -kk ": ============================================================================== PID TID COMM TDNAME KSTACK 1760 100731 wfica - mi_switch+0xe1 sleepq_catch_signals+0xab sleepq_wait_sig+0xf _sleep+0x27d linux_sys_futex+0xb3c ia32_syscall+0x3a0 Xint0x80_syscall+0x95 1760 100732 wfica - mi_switch+0xe1 sleepq_catch_signals+0xab sleepq_wait_sig+0xf _sleep+0x27d sys_semop+0x53f linux_semop+0x25 linux_ipc+0x4b ia32_syscall+0x3a0 Xint0x80_syscall+0x95 ============================================================================== Regads, Nils