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[209.132.180.67]) by mx.google.com with ESMTP id g9si2343910plq.376.2019.06.10.12.59.29; Mon, 10 Jun 2019 12:59:45 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389293AbfFJT6a convert rfc822-to-8bit (ORCPT + 99 others); Mon, 10 Jun 2019 15:58:30 -0400 Received: from mga01.intel.com ([192.55.52.88]:56452 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389170AbfFJT63 (ORCPT ); Mon, 10 Jun 2019 15:58:29 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Jun 2019 12:58:28 -0700 X-ExtLoop1: 1 Received: from orsmsx108.amr.corp.intel.com ([10.22.240.6]) by orsmga005.jf.intel.com with ESMTP; 10 Jun 2019 12:58:28 -0700 Received: from orsmsx112.amr.corp.intel.com (10.22.240.13) by ORSMSX108.amr.corp.intel.com (10.22.240.6) with Microsoft SMTP Server (TLS) id 14.3.408.0; Mon, 10 Jun 2019 12:58:28 -0700 Received: from orsmsx109.amr.corp.intel.com ([169.254.11.79]) by ORSMSX112.amr.corp.intel.com ([169.254.3.233]) with mapi id 14.03.0415.000; Mon, 10 Jun 2019 12:58:28 -0700 From: "Hefty, Sean" To: Jason Gunthorpe , Eric Biggers CC: syzbot , "dasaratharaman.chandramouli@intel.com" , "dledford@redhat.com" , "leon@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "parav@mellanox.com" , "roland@purestorage.com" , "syzkaller-bugs@googlegroups.com" Subject: RE: WARNING: bad unlock balance in ucma_event_handler Thread-Topic: WARNING: bad unlock balance in ucma_event_handler Thread-Index: AQHVH70r3ZnP/JtE/Uij3ZacQcoN06aVwI4A//+McGA= Date: Mon, 10 Jun 2019 19:58:27 +0000 Message-ID: <1828884A29C6694DAF28B7E6B8A82373B3E99E60@ORSMSX109.amr.corp.intel.com> References: <000000000000af6530056e863794@google.com> <20180613170543.GB30019@ziepe.ca> <20190610184853.GG63833@gmail.com> <20190610194732.GH18468@ziepe.ca> In-Reply-To: <20190610194732.GH18468@ziepe.ca> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiMmFlNGYyMDgtNzFmOS00M2JhLWFjN2QtNjYzZjcwMjVjYmVhIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiTG1mRU5YQUcxYVwvSVRNTFJBRkY4ajRzZDM4TTg2bFRONmlTcUprQldvMVo3U0FOaUhOTDZ3XC81UmYzNUoxbWhuIn0= x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.600.7 dlp-reaction: no-action x-originating-ip: [10.22.254.140] Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > That is as far as I can get, trying to figure out how to rework > ctx->file to be properly ref counted, accessed and locked, is a major > task.. I don't even know right now what migrate_id is supposed to be > for :( By default, events for a new connection (rdma_cm_id) go to the fd (rdma_cm_event_channel) associated with the listen. This allows migrating those events to a different fd. - Sean