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Tue, 17 Apr 2018 10:15:12 -0400 X-Google-Smtp-Source: AIpwx49omYVOcSY1zn3Imyy0YXy6gE62sH4+QZ2pF6W2qfKnWdjkPGLL4/QJh1jKEM2EJicHmIKztA== Subject: Re: kernel 4.14.x crash around fsnotify_mark_connector To: Jan Kara Cc: mszeredi@redhat.com, amir73il@gmail.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20180417140231.75fi4ek2q77qilta@quack2.suse.cz> From: Pavlos Parissis Message-ID: <3016af7f-97f0-e28d-96cd-e49fada3e88d@gmail.com> Date: Tue, 17 Apr 2018 16:15:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <20180417140231.75fi4ek2q77qilta@quack2.suse.cz> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="U4xveoVe93KwCD4ioJf56f49MGuONfZfq" Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --U4xveoVe93KwCD4ioJf56f49MGuONfZfq Content-Type: multipart/mixed; boundary="pliiOaWIfp47bu4mmtRCZwtgX9dBeXHV4"; protected-headers="v1" From: Pavlos Parissis To: Jan Kara Cc: mszeredi@redhat.com, amir73il@gmail.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org Message-ID: <3016af7f-97f0-e28d-96cd-e49fada3e88d@gmail.com> Subject: Re: kernel 4.14.x crash around fsnotify_mark_connector References: <20180417140231.75fi4ek2q77qilta@quack2.suse.cz> In-Reply-To: <20180417140231.75fi4ek2q77qilta@quack2.suse.cz> --pliiOaWIfp47bu4mmtRCZwtgX9dBeXHV4 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 17/04/2018 04:02 =CE=BC=CE=BC, Jan Kara wrote: > On Tue 17-04-18 12:39:32, Pavlos Parissis wrote: >> In one of our production servers where we run kernel version 4.14.32, = I noticed >> the following: >=20 > OK, I was looking into this for some time and couldn't find a problem i= n > 4.14.32 code. Can you try running a kernel with CONFIG_DEBUG_SLAB and > CONFIG_DEBUG_PAGEALLOC enabled to hopefully catch the problem earlier? > Thanks! >=20 I can certainly do that, but I can't reproduce that specific crash. So, i= t may take days before we get a similar crash. Having said that, the soft locku= p issue, which I mentioned in another thread, happens once per day, so I hope runn= ing a kernel with those debug settings will help you. Cheers, Pavlos --pliiOaWIfp47bu4mmtRCZwtgX9dBeXHV4-- --U4xveoVe93KwCD4ioJf56f49MGuONfZfq Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJa1gFsAAoJEIP8ktofcXa5NyAP/2TLllQtoWDeIM42THZwHmEB KxqiXxA4mnDCUvnMxcxNxTpoZBfqDzEU3qTZ5Bjsp2N9MFKWf+IjxSuTb1hEGp9o kumkUoNS3ZaB/WjV5kHvOGsmcOUK+XV0yzMQEh5XwOPr9L7o00QBk6TS4RJvQWv8 zbGZabigMQVgfWWXwJJShMPrOPcKfaRAL7xwzfAp0BcVwmQa2kXSgBGOlYuYWveW UhrWsWERU3BOR+f7UROdQsE1pX3m6/Tye1YREPkoYk+HHA9yHWoMtc1QNU+qxSeq ow89Un1odPhKOMRB5PgsK8hgg5VWZ5w6P9T8/3fIs2KLK28a3iiXFcz96lfY8jY1 N4rERLjPN8F/pSTZC+3UKezyGhADZuNd9vuKxs7CHC9ooiv9CqcvaMUE9E4J+qPA gxG1FgzVjhwg8l9RsnrMbe6khHWuFlu/YmkfkvBb/Q+zZanEP0f9Xt+qx13IZ0IF MariVX2GsfWR+v5EEno0XmEGHowxWuuCd6ZAn26ouW6NDLK92YgWN+W8evO1cvK9 87hZELxhGKI4xkzgUrbQDbmsMydRyMxbifqZqzGdNQFd+21HPgOk+ZpL5wCccalB hPyPl3M3NPwAxDQfufjNj2qg8er4VRkzLBI8m4QDMwSABviNniy1j8w1wK9U0uCE mjVkgGLdZPD9iRzxw9VB =61O7 -----END PGP SIGNATURE----- --U4xveoVe93KwCD4ioJf56f49MGuONfZfq--