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Sun, 14 Jun 2020 06:54:14 -0700 (PDT) To: wireguard@lists.zx2c4.com From: Gregory ORIOL Subject: Problems with Ubuntu 16.04 kernels and wireguard 1.0.20200611 Autocrypt: addr=fortin81@gmail.com; keydata= mQINBFuuJB4BEADYwarUr0NGeUfNwvfuSsLnAUHPnPKHON9L2stl9ZNTUc7OmfThPR2hEM4I pYkdqai4u3Jxwqsv2Pxz8pGqZh20oLOiELjHIassRlrSGbaHKhGMtI6fjhsamR/H+KxvhmEk 4f5XA9WmhjUamaagPK8UhIeK56+lCu+3z1/2UV5Pgu8Kf2wb35Ib1G081O+Gp61AXTsabmbb Fl4hAk9YjqfjelfqQgNd78inyx88Qz0InphzeL64lOFKtHtulA4HMd9SwAi9SqWBN8D4LKhY CPP7R2weQiGY1eA2SAVquDLjNa1JXC2Yb1BzqbCqD27KRBUCQ2jzUkB7h+zcBlxz5U3v3lwH zGkHwXUQc38SvEJKlWCURHDD7hqTW5fsuEsEuwwEGeVFRV49bx4i2DhSga4REdvIfgOw7n9k Elvp4BUvfGoan94u+r4UWr/L64E+U++YT7vNYxtKC/DuVdObVlRXnYOrEWinQnG7DyQ9gzhU yYUYX+iqoyPKF6QlcUU66LA9wh5rz/o8b1jHg5OZh28tlozW4yQmn8+6VSy2KZxu6AznplTR kGlSWmtidKCb2EiSwFTWfPqHwvg6Bvfd1mWQPQm4x0od2FuAhoujqvpPcRgFys7NhltsGg5N 8h53isDLmXmCd2xYT/5FXztnTzgzaPe9pomZULXzNeKW4wUONQARAQABtB9HcmVnIE9SSU9M IDxncmVnQGdyZWdvcmlvbC5uZXQ+iQJOBBMBCAA4FiEEwd5cqO5naKLqsHv2C/6Hz1wTzfQF AluuJB4CGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQC/6Hz1wTzfSJRg//XDN25KnB Cp1y4Bw/pIQsCwnsAY8OPSmOQhu2PFvQ0Wq17CCR5uZFBL4o4V1Mifl4zQOrXTm6M4rcy7F7 P7dbPmgkThl/BGPzOB5KTP/gPmkPb/lJWdK2WeRRL5b0Pcg7y1+9FINhNMVBap1aJjMrI8p+ dhVk55RGTtyFoHERkjfrtckLEszbZ00fKZKQW+Oloioq5fUvf/pV6m0jvLvmt2jhtMaqMon9 uakEqI0RZzhjlHZwxSnuXXzYniUSkjGZaP7vKpYTsnii0pzYpqlj9VB29v82IOUcRDIodSts uy8PeTiq6iiv5G3R/+3OcGrE7v93aWtu2sY8oKSUZQAfjbxKLR6lSAq6L430AXhKeHxZuEiR iTEYhr2ZnEBelPQOyPRQRLTjNMD5pHgT4MSWGh3U8mDfZWe3DWQUR3zxGaSKg7Ja9+2ellur GRLdCuxbm2zhxhdM5V68hvxyFxOaYRlL7e87KpxdxCz3l61BltMTQNcrHF57jLaULSX56bUN nfw6yZS85qRoA9pUyccc3Hx7pCpuRW7yn0nOxZVnkBcLJOvmky1Psswx+2PIbtZBHo5+GQGw yx0/S5Wtlzwd9EuKcU1NZFabulgGgVsRy6uqxN3WgNe29rOMM9OHI+ujvQx/dRQebRQ6YHrZ HqxjQD6PL7hmYbw07RmbQ64vp7W5Ag0EW64kHgEQANPcs9On46O6aA4QDPOkddk1352l6mS5 l7Dhv7RaX3lYwJvhavxebN1s7w9QPrMhnLft2H1QX+DX5qx96d5HBZCMO4MH7YYO7BdiK2nJ stWahpBvvIX84lM1ruRQjaE7NWzBs/NvlHzllElYO8rgt+1jwVCNdtQ9SRIacnHgj3z0gU5w APx+UAvRdmo787pr7mxB3QtaAzmaU/SoBFJ2bGzN30cxwwy+tmnZYP0aeipSTXGpxM2XhmJW ZGtmRpEmNLgePl6V8vEEDo0FXVDg+EKD8Y+L6bf5TsIIgaU9KZV9/Jds6KzYIyGp+8kt0PUK bg1LWqdGJZ7TaaMVYZ1Rqebjw7EzYv9BOep0Am2InT5Ta/CjtXdKe9ILhhvZD7fPcKvZpjUi DHiA61BcapAjus+6yOOYlEcfPRBf0vSrMTgl6Q16fMkPVRFzN0kras1eFiMlPYcQXlFSNcgJ FiyiuALUP7i8Ir8ZdyoQQekBjVcphJwuwYymJ0d786V6AEdqzOMX9s6z/UA+7qzKnenHWaPX uRaNQS0WUTi5u7xot9INKromXru4sDTpgkli0cAdfmEvXWn8/b/khHO1R/8PZ8BiEQefiLXy CHNWt7n1nSnAnhonMzd5/6kaUWvLPc61SKs+y3KiCsePYWwC6G5+f3SdwbtS8OPHw54BTH9S yVLlABEBAAGJAjYEGAEIACAWIQTB3lyo7mdoouqwe/YL/ofPXBPN9AUCW64kHgIbDAAKCRAL /ofPXBPN9DfjEACshiHKpiEtphrKwT5V+E0F8mec7GcqVU1iXFVFB6TJT8Y7AwMEsVSP3wtZ G8R3fPmRm5KByq9FPOkO0TPGLtlTT3WLhTyZZYPSZ1HNp522X0TmUMW1hzkPEiC9jOITb+8P fkBEr8b+/H9XKxg2gGHgxc4UycqMD5FGa7uYSFQ2zLwyxszuhJdHzCrt2Vftn/I2cKvbwWDx rZrC/fVg+Oi0w3Iv7bpBCB35gtsrikduLOa+tl6T3/MuIuk60bsaLZn1G70L5KrqlsAx3Cbx URI0NyngLeoGVsPyqEsUFHX+85QTVjmEtjUvPtVBRi/c4zjSNoY4JuJQb85ll4CZFeQwZb5z I0sAQ0hj/85aXrOTCshy2vTLUy8kL0S2pTrfRX8i1ThW4Ojyb0AwUYjQUBWas51D/nmJ6POn H6lY9FwJ/THmwvg+zT9pdmIySl5A4Dz2wzTtaMFXo+fpkYBlLnh+hCCL4fWHMWY6cVwU6Ekc lShNXjP1Y4o2QzuZquGTYXGkbFHOKdTo5jXDtV8CckT9HNq4wRqTEEH0eDgn5gApT9aIWHC8 UEFEKVFVP9Z6mZk/MfKcUeZwkgyiCuM5Pszko8FUwiaWpHGLPR73PxlN5TvBQciXNUegYeuA NzYouuAqEQFwdANsYR53G+A8KCjNSprt0qxynw/wI0rYXmpVMg== Message-ID: <56455548-76ff-1f8e-9aff-e0bd45d8daa3@gmail.com> Date: Sun, 14 Jun 2020 15:54:12 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:52.0) Gecko/20100101 PostboxApp/7.0.18 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-US X-Mailman-Approved-At: Wed, 17 Jun 2020 09:26:34 +0200 X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" Hi, Since commit e24c9a9265af40781fa27b5de11dd5b78925c5be to wireguard-linux-compat with a fix for some Ubuntu versions, we are experiencing a problem with some older, but still LTS, versions of Ubuntu 16.04: older kernels 4.4.0-148, 4.4.0-166 fail to build with wireguard 1.0.20200611 So, any system running an (or still having an installed) "older" kernel and doing an apt upgrade to install wireguard 1.0.20200611 would fail during the wireguard dkms step, while trying to build wireguard for all the kernels available. The problem gets more problematic when a newer kernel 4.4.0-184 gets installed with the same apt upgrade: then, trying to downgrade wireguard also fails; none of the 1.0.20200611 or 1.0.20200520 versions work anymore with this combination of old/new kernels... To recap : # wireguard 1.0.20200520 =C2=A0- ok with kernels 4.4.0-148, 4.4.0-166 =C2=A0- fails with kernel 4.4.0-184 # wireguard 1.0.20200611 =C2=A0- fails with kernels 4.4.0-148, 4.4.0-166 =C2=A0- ok with kernel 4.4.0-184 (nb: we see it now with -184 but it could have started with an earlier version) We could partially fix this by manually getting each deb/src and doing dkms install: dkms install wireguard/1.0.20200520 -k 4.4.0-148-generic dkms install wireguard/1.0.20200611 -k 4.4.0-184-generic =2E.. But apt upgrade is still broken. While we could boot onto the newer kernel and remove the older ones to get rid of the problem, this situation would prevent from having a "previous working" kernel on the system, which is not very safe. Could there be a fix for this made to wireguard-linux-compat for those versions? Best regards, Greg