From owner-freebsd-current@freebsd.org Mon Aug 6 21:37:12 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B404E1066C07 for ; Mon, 6 Aug 2018 21:37:12 +0000 (UTC) (envelope-from vladimir@kondratyev.su) Received: from corp.infotel.ru (corp.infotel.ru [195.170.219.3]) by mx1.freebsd.org (Postfix) with ESMTP id 344DC8C848 for ; Mon, 6 Aug 2018 21:37:12 +0000 (UTC) (envelope-from vladimir@kondratyev.su) Received: from corp (corp.infotel.ru [195.170.219.3]) by corp.infotel.ru (Postfix) with ESMTP id 0416A102DB; Tue, 7 Aug 2018 00:37:01 +0300 (MSK) X-Virus-Scanned: amavisd-new at corp.infotel.ru Received: from corp.infotel.ru ([195.170.219.3]) by corp (corp.infotel.ru [195.170.219.3]) (amavisd-new, port 10024) with ESMTP id IH7e_kbaslBn; Tue, 7 Aug 2018 00:36:59 +0300 (MSK) Received: from mail.cicgroup.ru (unknown [195.170.219.74]) by corp.infotel.ru (Postfix) with ESMTP id 35D1D102D3; Tue, 7 Aug 2018 00:36:59 +0300 (MSK) Received: from mail.cicgroup.ru (localhost [127.0.0.1]) by mail.cicgroup.ru (Postfix) with ESMTP id ABA38422122; Tue, 7 Aug 2018 00:36:57 +0300 (MSK) X-Virus-Scanned: amavisd-new at cicgroup.ru Received: from mail.cicgroup.ru ([127.0.0.1]) by mail.cicgroup.ru (mail.cicgroup.ru [127.0.0.1]) (amavisd-new, port 10024) with SMTP id WvDaQJ9RukwD; Tue, 7 Aug 2018 00:36:55 +0300 (MSK) Received: from [192.168.0.30] (gateway [10.0.2.2]) by mail.cicgroup.ru (Postfix) with ESMTPA id 12B8C422123; Tue, 7 Aug 2018 00:36:55 +0300 (MSK) Subject: Re: Linux process causes kernel panic To: Konstantin Belousov Cc: Johannes Lundberg , freebsd-current References: <20180803204250.GE6049@kib.kiev.ua> <20180804142235.GM6049@kib.kiev.ua> <5856e8a6-84a4-6fb4-c2d4-ecd56c5c5a94@kondratyev.su> <20180806203738.GA6049@kib.kiev.ua> <20180806204148.GB6049@kib.kiev.ua> From: Vladimir Kondratyev Openpgp: preference=signencrypt Autocrypt: addr=vladimir@kondratyev.su; prefer-encrypt=mutual; keydata= xsBNBFkI9Y8BCAC44UZYE8ZswFr/LHNHutuCmrbfP0j6jYl6zkW9VeM3cXVDjDsL3h9JhEFH zF9Or0muwHjspNuVdP2ot9vH8FCGAGEYS/GrzEEKxj4yoxAZxWnGUwzFiaf8fCtlrq5D9vOd /HSm6tb5YbcC/t/46hSwyPZ4i07rtsxmeozrKNx9H2gkcY0/AfmZ+UxY90/cj/F3aNk4wYLH gC95N99jaZvwPFX8wW5k++YaThXo8TNGQaxmC28cFFPdc1qICYdzYxS7kbTlGKp37lWmV9Z6 FursbfIkJZ7Rzw7NjGGijj4XjKif91ZwQNz/BfO58xrookQCibVCJ3JKcZo4NZ7rWTWlABEB AAHNLFZsYWRpbWlyIEtvbmRyYXR5ZXYgPHZsYWRpbWlyQGtvbmRyYXR5ZXYuc3U+wsCUBBMB CgA+FiEEkwnJqomIwH/siVElg2u+IHApX3UFAlkJEuQCGwMFCQWjmoAFCwkIBwMFFQoJCAsF FgMCAQACHgECF4AACgkQg2u+IHApX3Wsmwf/bSUJeS0KXHQHH/XZwaqi0CfWxifrWfC+K62O DVA5TZZfZTs8h4Pov2DBvgx/DaQIVXeZazDPZho4v5SCrSulv//gboO6iN/7ZVnSRwQfyOp+ xnXLOzjC4mv4GjYc5sILJWQbWF4UPBGrBiFjtWrYjrRwVE6o/ThEXP92uu7suS2+U+f0zBh+ NZpJdf1T6EUN/dn8QLCyASNW1uYXzQ//5kTFc3ECC0VXzTnCZ7WWzkEOMbaVOwR25K5hCrg/ e41zrGlq8xLQhnXje+ZvG5DZkWKiZ0hUrB7nA8RLOVN6I1rzqStQjYxQuQqGu0Om/Bv6Rp+t AwEaLQdYOdXEyMZRe87ATQRZCPWPAQgAt5NVWoIBXPqs/lo3w3JxUZ2f2R1bTqdWNBHlKI1Y r6WDHSMWT9WM/vycZSG5N6a051ZGhyPS6LNoxxqokYwgLr9VMsBTS7pA8Nx8hzyjIAAYCQqX 2tluX2FzvcJUaEZDo3pt93IpHzvf924A1nvxP4n9NyfTu4GBZ+07sBJEploKugmAVIzXD1m6 zr1xeo6LF5Adz1b0WP2cU88gv66FiuZp9Cj6DTGdIta6hQqAtrBxINVd5XR99eXrZ0+YSiIi 7ywa3dDti8NXwkZkn4pGPDkCjb34PL1kdoD/yOCpp9yAdflF8T8KObjWuivnAMOYfmGGN30n nhh8Ub9n2DVw7wARAQABwsB8BBgBCgAmFiEEkwnJqomIwH/siVElg2u+IHApX3UFAlkI9Y8C GwwFCQWjmoAACgkQg2u+IHApX3XzJggAs8Hiu/YeLfmZYp/57eaK/BrtW5TeLrKd5x4knFkY dxWOJ7ZJIIr7fhUH9OZKyAMYPzJaWuxhAuDIZiH39MZFnAhx6LnycCIQMY6CP4gJ8Y2ssvf7 eNcFRqL1xvEmAELMC5HtpnLp914xlYkBoqcU2rH7X0Qza4GvafQHHVrjc+DqqKbF6YjPsEew Fp4mqvvIxi71UiWy95q0x8tC3Cbm5hUCl2i5nl0iaWNNMkuh6is+jLJZ9W5CfEPcp+W2Vekd UTm4zN0+uaR7br3Lr3GbBJPlLHrH1haK6nJmyfVzf1MbK8wqIHiH1wWmIxC96QHKCEzRDjdf IVYGqb/YykLjBw== Message-ID: <1372b1e2-fc10-9066-0cce-9ef55416549b@kondratyev.su> Date: Tue, 7 Aug 2018 00:36:48 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: <20180806204148.GB6049@kib.kiev.ua> Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 7bit Content-Language: en-US X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 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: Mon, 06 Aug 2018 21:37:12 -0000 On 8/6/18 11:41 PM, Konstantin Belousov wrote: >>> linux_sys_futex(0x33b0fac,0x85,0x1,0x1,0x33b0fa8,0x4000001) >>> -- here it stops -- >> Can you fix your mail client ? Unfortunately, it did all that dumb wraps at send time not at edit. Sorry. >>> ddb also shows that process is looping somewhere inside linux_sys_futex() >> There are two bugs. One is that ifuncs handling for relocations against >> local symbols in elf obj modules was missed. Patch below fixed it for me. >> >> Second bug is that futexes seems to not handle accesses to the CoW >> mappings which are not yet copied. I think that the second bug is >> irrelevant for your case, since it worked before. >> >> Try this patch in addition to the linux/ patches I sent before. It fixed skype for me too! Thank you!