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[128.127.39.232]) by smtp.googlemail.com with ESMTPSA id a16sm2861831edd.28.2018.04.19.14.16.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 19 Apr 2018 14:16:56 -0700 (PDT) Subject: Re: kernel panics with 4.14.X versions To: Jan Kara Cc: Guillaume Morin , stable@vger.kernel.org, decui@microsoft.com, jack@suse.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mszeredi@redhat.com, Robert Kolchmeyer References: <20180416132550.d25jtdntdvpy55l3@bender.morinfr.org> <20180416144041.t2mt7ugzwqr56ka3@quack2.suse.cz> <9b11cfba-4bdc-8a3e-cd33-2f7e8d513bdf@gmail.com> <20180417121207.cs7eijrndovbplgz@quack2.suse.cz> <9cb08428-66ed-2306-d2f2-ae734863c68d@gmail.com> <20180419202302.vj2eu43hy77g5mv7@quack2.suse.cz> From: Pavlos Parissis Openpgp: preference=signencrypt Autocrypt: addr=pavlos.parissis@gmail.com; prefer-encrypt=mutual; keydata= xsFNBFE50ZMBEADWTPWBaVLkaIldRGfinwUAPEeawauL+XUmL+3KDMGm/ujxbyWw65vydmu1 9svBd/OkII0bnf/r/8f5oBXcmYvkARqgu3V2B4L2vFzGDJw+7+5Dex3afg/T1/mvZdo2fUpu uWIVyWYIvK/MnVNx5uQpJoP3NwY7OqBUH3tOBTxFCtBSXVyXPLAQnV83GY584tmgvee9o8HU 5YQhaxxYb6S8ROarAL74K4KAZ2nzlfgjCH5p3wg2lZuNNTzxKln44qIb5Q6HxpAOHiFOPg5d yUZd7dcdakegQru2A3MuhHKXVN04SEe5wLMeNdSsu1X+PdWSVvecX5kY/9axzoSvaazt92Vp CDovpgN0t7WE7Qcl17Uq76tlJAhCqLZldTMxMaXNtDH7l5csSHC8SHNKvQvhFa+sWc9Wbqya cSodO3+anHaAZ5qa7iICQUf0hTqlVu5wlQtIryn+dG/gh6+trp/tYqOOYg8JFfko7o6XHoYC v5eUSVbJDxyRkbZ/sUTJFO0/2hAwz3var48nTDYPYxCXxuk+1OaOWGHPGEUmq63fWNX0kOgk 4o3QDeoivuzXOC8qi0yCW3+uWKT/sVEYPgFAey2/8CJCH+s776oUvdONPlpnQOuQ/6ea9ESF WfJNc8JayRhucRzoC2sPgB3wNJe2wBgICNch7JFy1SW+87SruQARAQABzTpQYXZsb3MgUGFy aXNzaXMgKHVuaXhzdXJmZXIpIDxwYXZsb3MucGFyaXNzaXNAYm9va2luZy5jb20+wsGYBBMB AgBCAhsDBgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAIZARYhBB2Q2SugwbvmFI+vnYP8ktof cXa5BQJaacnZBQkM8l9GAAoJEIP8ktofcXa5wrcQAI1bpgoLNWUQdWEVXGEQDmymUGoiJd+L vDYRh0PV8bEh6hXbpWxBJyMQgyZDPtGlpojI6azwfloFg4bmVpx8tuGzxOSamUj12HSRQIcH 6fZFhVqXXtHxaR/Ar+X25PxXYxzPKbbwlPs6Y5H/5sC7Yn3N9O86m0tBCG/735DYzm0w3KM1 zvI2MgeNXZVJKdkr4qLhl+4bRZY1g02Pb7VZ2Wr1wc+kY1qe3htt0eq6dYNZn92XNLRtezhn H1gN8/RMCJL4WlsuXhMaGoKT1eB84dWzpJG6ZATYzFriAWS2MbZR76ouG60Wfe18YqVIOO8j umYve3J0aICxwlYwtFlqKYiNaahCB3YXUubkeLTHYQZkLr8IKSyqzuY8o4D9nq5/++6tscOW oT+ptpY9BzhhYuJGT+yBttqDGneJxZ333NyFsDy0GWnsTZTwgSE2NrUEI2M7tBwyunqfEMtF lfpF16lQ/+96WyhyB4OTf9TA/iyCaGAZ09wQ8H3fd2tVRjlmJ7szogmZepczpXv48MTXfr34 mtJ8WEfVsQHkSssO3Vybnnm3bb+L8rbUg7DXDP5yTs7jpdseI57Lo1w8eoiuyhDQ19UN1eEj 1YUdioXDJT3aLruUkkhboWnZxRRQ8eK9NE2uGs2M2oQrPewFDzcodixePpoSd+9pnSUIh/m3 eOSdzsFNBFE50ZMBEAC/1BH//nQj2hIdDiBEKegibb8CiM2FrB9f1j0DjKMG68ZxbyqEyZoe zWNlREaNhkKmAZAz72/SMRkwQTXZ61UnllKdafppxdoMopcF9pXD6FM/a2Sx7VgBJVDBIx83 sZpHrw5Pcuk8AuqNZkx+YJQyPIoGJL7wVoeLIkMaz2MVJ9BT3gP73XgsVS0AxBUUndxGbxQ1 RdEyXSU2F4LEJ5HIJhqW6qppy5uLDZ0Ts6DL9uZYBj++MDkB3YnzVVVEVccvQeERSYEauSuZ fPE5iEY2xsQGXECslhiA/zgo4gZ5vn30ffDeoBOnfMztX/4ViLgE6GAO/VnlDCX4M2UGaX61 6edtzJi1bDQjj1+BNxSQy7x++Z06E4y9wJHRysKLZarCvYO1y7iO/xLcfZiBgSgZ6nYudtjF jacA0kpDwTj7ZS3cn4kO52UXUDmx7eP6O9K9qspXpmjwuj147N7YCmsZwgnIPypxm3fVfldH nMFHjGeJl7Xs+5l2oF/LpFa6cpXgYFjRhmVwCNbln/5+HyT3YOFnkLdIEc1uCoMBPTsjr4xQ nic//fXlrtse/J5TIQR5S3HIchcJT7RIi3HnlAYfRVj1Dy+xvn8BsEkDPSLU5LcnUc8GFGmr Vubdz00W5K7vJy9AwvAqh6Sqh/v4+vYvun+BYv64sJxw4o16AcqPhwARAQABwsF8BBgBAgAm AhsMFiEEHZDZK6DBu+YUj6+dg/yS2h9xdrkFAlppyb0FCQzyXyoACgkQg/yS2h9xdrlKnA// SF0ZAosVWMinrajdSp9euRxWfdsp2Vn1vfEHT2S7V4p8APJZE8wE/I9UcSuPDUPjjB8Vw8iO vQoxg9vE11HadGScGaXnC2m5lQP4GgSN+g9AImZRoOkrBzklXBgf12mrrQ92UVJVr3AsflYw UBZ0/k4ySkym0KNQjq4Xd0NRbHMaFRHP6KgWTVPn36Cy9j9UwrFBb/QwQKpRbn79B3pWlN3v jQxKG4dhTFEburszqTqtEoXBnQeAch6L8wpaNsSNyDzMmoKczjz7dEwWVM65OvANxcflRp8p 1H9aEWq04ga28fl+fWrNSCMXafHKpX2uz3FQRhtyMLaX8RZsixrTZK9GC+HLPw5Gc7utNFaC 9WCQP75wE4Re3Z+g4yO7OmdYrOH2WC1Ga3IAEvWpKdf6sx0j4XWOqp4EBJ9GP8wBXZUmm8Xz xs0Ui6ayYI4guy08HUsysqcfAp/aGvriqZ01EcjlCkfnvQ/Xs+OIRy47h/mL2XwkT3C0wF+8 /EYDe4i5XY47vv4cBwoPpw7O7z+AQ85VnQTb6ODJSJIyjIGC3VXb29qsuJOxc+Ina+wgAztE 0E+eUNN5pjvWx/9v6e8E56bAizJhU/sKbQFk+B4MGYUqHwsSd9xrR8+Y/OtxhaxBU00WLBnw CjB2s83SyrTd4UWbbIdiUV5C4QiML5GSewM= Message-ID: <13d1dfff-e0dc-38a5-e2c5-87e8e1f2fb9d@gmail.com> Date: Thu, 19 Apr 2018 23:16:55 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180419202302.vj2eu43hy77g5mv7@quack2.suse.cz> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="R0Dcx93oI5EZluAph9KvalmQJ7I9s6vq6" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --R0Dcx93oI5EZluAph9KvalmQJ7I9s6vq6 Content-Type: multipart/mixed; boundary="WCY8CyTttUcRrpV9bqqbbLAk8sbdRBTKI"; protected-headers="v1" From: Pavlos Parissis To: Jan Kara Cc: Guillaume Morin , stable@vger.kernel.org, decui@microsoft.com, jack@suse.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mszeredi@redhat.com, Robert Kolchmeyer Message-ID: <13d1dfff-e0dc-38a5-e2c5-87e8e1f2fb9d@gmail.com> Subject: Re: kernel panics with 4.14.X versions References: <20180416132550.d25jtdntdvpy55l3@bender.morinfr.org> <20180416144041.t2mt7ugzwqr56ka3@quack2.suse.cz> <9b11cfba-4bdc-8a3e-cd33-2f7e8d513bdf@gmail.com> <20180417121207.cs7eijrndovbplgz@quack2.suse.cz> <9cb08428-66ed-2306-d2f2-ae734863c68d@gmail.com> <20180419202302.vj2eu43hy77g5mv7@quack2.suse.cz> In-Reply-To: <20180419202302.vj2eu43hy77g5mv7@quack2.suse.cz> --WCY8CyTttUcRrpV9bqqbbLAk8sbdRBTKI Content-Type: text/plain; charset=UTF-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 19/04/2018 10:23 =CE=BC=CE=BC, Jan Kara wrote: > On Wed 18-04-18 10:32:21, Pavlos Parissis wrote: >> On 17/04/2018 02:12 =CE=BC=CE=BC, Jan Kara wrote: >>> On Tue 17-04-18 01:31:24, Pavlos Parissis wrote: >>>> On 16/04/2018 04:40 =CE=BC=CE=BC, Jan Kara wrote: >>> >>> >>> >>>>> How easily can you hit this? >>>> >>>> Very easily, I only need to wait 1-2 days for a crash to occur. >>> >>> I wouldn't call that very easily but opinions may differ :). Anyway i= t's >>> good (at least for debugging) that it's reproducible. >>> >> >> Unfortunately, I can't reproduce it, so waiting 1-2 days is the only >> option I have. >=20 > Good news guys, Robert has just spotted a bug which looks like what I'd= > expect can cause your lockups / crashes. I've merged his patch to my tr= ee > and will push it to Linus for -rc3 so eventually it should land in > appropriate stable trees as well. If you are too eager to test it out, = it > is attached for you to try. >=20 > Honza >=20 Can I apply it on top of 4.14.32? I am on vacation for the coming 11 days, so I can only provide feedback w= hen I am back. Thanks a lot for your support on this issue. Cheers, Pavlos --WCY8CyTttUcRrpV9bqqbbLAk8sbdRBTKI-- --R0Dcx93oI5EZluAph9KvalmQJ7I9s6vq6 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEHZDZK6DBu+YUj6+dg/yS2h9xdrkFAlrZB0cACgkQg/yS2h9x drlH8RAAnr9EWgoY6bmBJFwfLcGeqCdrvGcStEMioQ2CD8xmA05QfPPWDaiM2B8E vh/nsMMFU2KvsWHqpRVt7PHSbvmGlhCaazY/9ENNY2T2T6s0XMT5Z0HOY7vrjlSo Pw1ebAYUoX5F5Uh8p8iuLGZJMcAado3ElTLXQ5wYM524i4DNNXZkpC3Q4GS2rd7k 0cGz+ds7gzeaYGtNvBBowsNJFH/MbY2huOEAzMVZbtsNLsFDbD4aCMhKF0l/JD9B OmIdXr3K+ERjC+5jeAnru2Py8Du9TgHnst6lJU87BC8PaljeZN+Q/zKu726BfGZZ o8VJ7CUVrEaL/hu3g24Ug5OLpN/+L1gEdt+MnED6Z5lZ8qrSphK1qxsZ22CrHCp2 p2IZC54a9MMUv0CielvAizGpx0W3K0ers0HpQ/nbW8CAhes0UI2kwkNhhFSjiLby dkfJ5fLcoJ//wQBVvVxUJ9AjwIHMYhsaGxkLHDvLCq9JyDRmf8YhIznol756uvMT u1L6l0HiP7gYc8x/mtqW5tEHLmou7N7ezm1vUaNTURYlhi37yTUxvdSbeOoNrbq8 +nP52nxnt5txRkE1GzYPLnfvA2xEfxx+i/kxuvjZX2+IxiboGuYAKqd/YEt8gjyL i2htqUaYih6TCnRScKRTLF8e75xvCrWOdQX4Zv8X5X5LX7h9wBk= =BEPg -----END PGP SIGNATURE----- --R0Dcx93oI5EZluAph9KvalmQJ7I9s6vq6--