From owner-freebsd-dtrace@freebsd.org Tue Aug 23 21:45:53 2016 Return-Path: Delivered-To: freebsd-dtrace@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 A40B9BC4278 for ; Tue, 23 Aug 2016 21:45:53 +0000 (UTC) (envelope-from abhya007@gmail.com) Received: from mail-pf0-x236.google.com (mail-pf0-x236.google.com [IPv6:2607:f8b0:400e:c00::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 6FFD31F2F for ; Tue, 23 Aug 2016 21:45:53 +0000 (UTC) (envelope-from abhya007@gmail.com) Received: by mail-pf0-x236.google.com with SMTP id y134so47438016pfg.0 for ; Tue, 23 Aug 2016 14:45:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=Av8QgDGT9TItR3kG3V9hPIwN/+VNimZbwqlDFxVHtaE=; b=08yPLS3FpSW/lO5+ol+/C98n4kmpCH5Z6tfzVeVBSucmgJ0AC1U71aw6ndrQ63OCyu NbBZJ9fy2tJMtwYY1RMossaDjoBFuT9LGYHN8p7u5gVrk+HYqVkiqBs0Cv00/ZKwrENV ELRIo6b9blRX1bgVmJVYKI2NLbQbBXdAzkufzbtvEbY1yPQsklUn4qywH5uchLr36QW9 AfYTjkHxF3YwUAiYzwMQ/XQfeV8VEfUgbWiCmNXRKlYGopAUnc76R7NbjO3rhz04JoY/ 9hNylh3XBvqXD5INOUfWtOex+OksvP0E8CoAgftTrGBdZoMg634hu71bRLzNM2/CGAvE VFqA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=Av8QgDGT9TItR3kG3V9hPIwN/+VNimZbwqlDFxVHtaE=; b=ZQmgWEeN+mjLVGqjVGEuxleTEMXQgiLer3HnT8Git8dWI0hAY53+JoTQIO/J3xF9rj HlreGpbomPuEMrSLkCsZQmcecR+c79s+1SMd6jpNWZLqK69w3kWQbrg1+/WS1u3XQGqB Mq3l3mq5pGXE/KBmXsXoJ0Vj/LQZvNXxlZXCIikZ7sq6ocRFJ2IzxZhFzDM5pzXoKqt5 0cq9p7YL9y1BQnrSUPWqp3uRQa5W6ReQtAt8KtFUkct4m0FygJKKaLfjjhzaU2rQGxjl Ii4kqRulfGmNWsMKuRv9eJwVOVzwoaVHqkiv76RZfytWGzN+pFxf2SSS9OMRqiPvxo9W gWDg== X-Gm-Message-State: AEkoouu7QLxDGCWLFygqYIsIRVIPPHX8vt6JErOFrAEFejocjU6GqC3PQCAFvqw3U9iAEWhTydvh1COBifzfMw== X-Received: by 10.98.9.11 with SMTP id e11mr57536153pfd.153.1471988752751; Tue, 23 Aug 2016 14:45:52 -0700 (PDT) MIME-Version: 1.0 Received: by 10.66.7.68 with HTTP; Tue, 23 Aug 2016 14:45:52 -0700 (PDT) From: abhishek kulkarni Date: Tue, 23 Aug 2016 14:45:52 -0700 Message-ID: Subject: Regarding a dtrace core seen To: freebsd-dtrace@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.22 X-BeenThere: freebsd-dtrace@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "A discussion list for developers working on DTrace in FreeBSD." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Aug 2016 21:45:53 -0000 Hello All, Came across a Dtrace core. The backtrace shows hitting an assert which avoids a certain double freeing of a scn structure. I was not able to figure out what could have caused it. Could you please have a look at the backtrace and comment whether this is a known failure. Attaching the backtrace in the pdf. Thanks and Regards Abhishek Kulkarni From owner-freebsd-dtrace@freebsd.org Wed Aug 24 05:21:12 2016 Return-Path: Delivered-To: freebsd-dtrace@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 94A36BC39D6 for ; Wed, 24 Aug 2016 05:21:12 +0000 (UTC) (envelope-from hiren@strugglingcoder.info) Received: from mail.strugglingcoder.info (strugglingcoder.info [104.236.146.68]) by mx1.freebsd.org (Postfix) with ESMTP id 852B418D6 for ; Wed, 24 Aug 2016 05:21:12 +0000 (UTC) (envelope-from hiren@strugglingcoder.info) Received: from localhost (unknown [10.1.1.3]) (Authenticated sender: hiren@strugglingcoder.info) by mail.strugglingcoder.info (Postfix) with ESMTPA id DD8B117C23; Tue, 23 Aug 2016 22:21:05 -0700 (PDT) Date: Tue, 23 Aug 2016 22:21:05 -0700 From: hiren panchasara To: abhishek kulkarni Cc: freebsd-dtrace@freebsd.org Subject: Re: Regarding a dtrace core seen Message-ID: <20160824052105.GW68615@strugglingcoder.info> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="WjpOG6URjntW8FAF" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: freebsd-dtrace@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "A discussion list for developers working on DTrace in FreeBSD." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Aug 2016 05:21:12 -0000 --WjpOG6URjntW8FAF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 08/23/16 at 02:45P, abhishek kulkarni wrote: > Hello All, >=20 > Came across a Dtrace core. The backtrace shows hitting an assert which > avoids a certain double freeing of a scn structure. I was not able to > figure out what could have caused it. Could you please have a look at the > backtrace and comment whether this is a known failure. Attaching the > backtrace in the pdf. pdf got stripped off. Try pastebin or just paste it in the email? Cheers, Hiren --WjpOG6URjntW8FAF Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAABCgBmBQJXvS6/XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRBNEUyMEZBMUQ4Nzg4RjNGMTdFNjZGMDI4 QjkyNTBFMTU2M0VERkU1AAoJEIuSUOFWPt/lCYIH/AhU1/aoT1cRCxBLwKmt9ova I54RR7xXYPfDmw5Zu+cMQB4zAZbGxx2xMZiV32tqluXQbTPkWyoYt1EYzByOBT8s DTxq3xRW7B/Jksi9pDWZwlpuaTo2lq/Hii9jluZ3k4C5yuOVtKev2QhjXVgRvEds j7brEUvNFetgk2yPJLNMQMIqmc0wr9IEf5+geId5TahLf4fSpDZ4PPgz45je535J PgFWOKXr+L53TSYQl6Tuj/5ICuLhFaeb23qTggvPe7IbyFnIuA6HSDMV95aa9cQR N/Fw3f2FXe7mYAoJa7+j50ayM6px9uX2fFULMfWAWqgYnjYN/KavhRnAKHC9l9Q= =DhEH -----END PGP SIGNATURE----- --WjpOG6URjntW8FAF--