From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from heian.cn.fujitsu.com (mail.cn.fujitsu.com [183.91.158.132]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5F46470 for ; Fri, 6 Aug 2021 03:21:01 +0000 (UTC) IronPort-HdrOrdr: =?us-ascii?q?A9a23=3AYYFE2KH4/Yw8RE4tpLqE1MeALOsnbusQ8zAX?= =?us-ascii?q?PiFKOHhom6mj+vxG88506faKslwssR0b+OxoW5PwJE80l6QFgrX5VI3KNGbbUQ?= =?us-ascii?q?CTXeNfBOXZowHIKmnX8+5x8eNaebFiNduYNzNHpPe/zA6mM9tI+rW6zJw=3D?= X-IronPort-AV: E=Sophos;i="5.84,299,1620662400"; d="scan'208";a="112483857" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 06 Aug 2021 11:20:52 +0800 Received: from G08CNEXMBPEKD05.g08.fujitsu.local (unknown [10.167.33.204]) by cn.fujitsu.com (Postfix) with ESMTP id 6ED5B4D0D4A5; Fri, 6 Aug 2021 11:20:47 +0800 (CST) Received: from G08CNEXCHPEKD07.g08.fujitsu.local (10.167.33.80) by G08CNEXMBPEKD05.g08.fujitsu.local (10.167.33.204) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Fri, 6 Aug 2021 11:20:47 +0800 Received: from [192.168.122.212] (10.167.226.45) by G08CNEXCHPEKD07.g08.fujitsu.local (10.167.33.209) with Microsoft SMTP Server id 15.0.1497.23 via Frontend Transport; Fri, 6 Aug 2021 11:20:47 +0800 Subject: Re: RDMA/rpma + fsdax(ext4) was broken since 36f30e486d To: Jason Gunthorpe , CC: Yishai Hadas , , , =?UTF-8?B?WWFuZywgWGlhby/mnagg5pmT?= References: <8b2514bb-1d4b-48bb-a666-85e6804fbac0@cn.fujitsu.com> <68169bc5-075f-8260-eedc-80fdf4b0accd@cn.fujitsu.com> <20210806014559.GM543798@ziepe.ca> From: =?UTF-8?B?TGksIFpoaWppYW4v5p2OIOaZuuWdmg==?= Message-ID: Date: Fri, 6 Aug 2021 11:20:46 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <20210806014559.GM543798@ziepe.ca> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8bit X-yoursite-MailScanner-ID: 6ED5B4D0D4A5.AD4A0 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: lizhijian@fujitsu.com X-Spam-Status: No Hi Jason thank you for your advice. CCing nvdimm both ext4 and xfs are impacted. Thanks at 2021/8/6 9:45, Jason Gunthorpe wrote: > On Wed, Aug 04, 2021 at 04:06:53PM +0800, Li, Zhijian/李 ζ™Ίεš wrote: >> convert to text and send again >> >> 2021/8/4 15:55, Li, Zhijian wrote: >>> Hey all: >>> >>> Recently, i reported a issue to rpmahttps://github.com/pmem/rpma/issues/1142 >>> where we found that the native rpma + fsdax example failed in recent kernel. >>> >>> Below is the bisect log >>> >>> [lizhijian@yl linux]$ git bisect log >>> git bisect start >>> # good: [bbf5c979011a099af5dc76498918ed7df445635b] Linux 5.9 >>> git bisect good bbf5c979011a099af5dc76498918ed7df445635b >>> # bad: [2c85ebc57b3e1817b6ce1a6b703928e113a90442] Linux 5.10 >>> git bisect bad 2c85ebc57b3e1817b6ce1a6b703928e113a90442 >>> # good: [4d0e9df5e43dba52d38b251e3b909df8fa1110be] lib, uaccess: add failure injection to usercopy functions >>> git bisect good 4d0e9df5e43dba52d38b251e3b909df8fa1110be >>> # bad: [6694875ef8045cdb1e6712ee9b68fe08763507d8] ext4: indicate that fast_commit is available via /sys/fs/ext4/feature/... >>> git bisect bad 6694875ef8045cdb1e6712ee9b68fe08763507d8 >>> # good: [14c914fcb515c424177bb6848cc2858ebfe717a8] Merge tag 'wireless-drivers-next-2020-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next >>> git bisect good 14c914fcb515c424177bb6848cc2858ebfe717a8 >>> # good: [6f78b9acf04fbf9ede7f4265e7282f9fb39d2c8c] Merge tag 'mtd/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux >>> git bisect good 6f78b9acf04fbf9ede7f4265e7282f9fb39d2c8c >>> # bad: [bbe85027ce8019c73ab99ad1c2603e2dcd1afa49] Merge tag 'xfs-5.10-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux >>> git bisect bad bbe85027ce8019c73ab99ad1c2603e2dcd1afa49 >>> # bad: [9d9af1007bc08971953ae915d88dc9bb21344b53] Merge tag 'perf-tools-for-v5.10-2020-10-15' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux >>> git bisect bad 9d9af1007bc08971953ae915d88dc9bb21344b53 >>> # good: [21c2fe94abb2abe894e6aabe6b4e84a255c8d339] RDMA/mthca: Combine special QP struct with mthca QP >>> git bisect good 21c2fe94abb2abe894e6aabe6b4e84a255c8d339 >>> # good: [dbaa1b3d9afba3c050d365245a36616ae3f425a7] Merge branch 'perf/urgent' into perf/core >>> git bisect good dbaa1b3d9afba3c050d365245a36616ae3f425a7 >>> # bad: [c7a198c700763ac89abbb166378f546aeb9afb33] RDMA/ucma: Fix use after free in destroy id flow >>> git bisect bad c7a198c700763ac89abbb166378f546aeb9afb33 >>> # bad: [5ce2dced8e95e76ff7439863a118a053a7fc6f91] RDMA/ipoib: Set rtnl_link_ops for ipoib interfaces >>> git bisect bad 5ce2dced8e95e76ff7439863a118a053a7fc6f91 >>> # bad: [a03bfc37d59de316436c46f5691c5a972ed57c82] RDMA/mlx5: Sync device with CPU pages upon ODP MR registration >>> git bisect bad a03bfc37d59de316436c46f5691c5a972ed57c82 >>> # good: [a6f0b08dbaf289c3c57284e16ac8043140f2139b] RDMA/core: Remove ucontext->closing >>> git bisect good a6f0b08dbaf289c3c57284e16ac8043140f2139b >>> # bad: [36f30e486dce22345c2dd3a3ba439c12cd67f6ba] IB/core: Improve ODP to use hmm_range_fault() >>> git bisect bad 36f30e486dce22345c2dd3a3ba439c12cd67f6ba >>> # good: [2ee9bf346fbfd1dad0933b9eb3a4c2c0979b633e] RDMA/addr: Fix race with netevent_callback()/rdma_addr_cancel() >>> git bisect good 2ee9bf346fbfd1dad0933b9eb3a4c2c0979b633e >>> # first bad commit: [36f30e486dce22345c2dd3a3ba439c12cd67f6ba] IB/core: Improve ODP to use hmm_range_fault() > This is perhaps not so surprising, but I think you should report it to > the dax people that hmm_range_fault and dax don't work together.. > > Though I think it is supposed to, and I'm surprised it doesn't. > > Jason > >