From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-188.mta0.migadu.com (out-188.mta0.migadu.com [91.218.175.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7EA9C139597 for ; Fri, 27 Dec 2024 09:23:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.188 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735291396; cv=none; b=mB9caBY6+8wAPcOwjcKT0BWruIeOi9+nPOJBVXjKUtv/iOvWTIGODxp2qz5mcXYNoAf9v1Kb4JkYuX/rQeyYH2jP9dH6IEDs8DhwoZsyiZ0d+fKWafpVmDCA6QzKoSP3nqN6G7nzCTgJQeTJgMBBgJPnTc51d+COwLcXO7lES2s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735291396; c=relaxed/simple; bh=MXQGgZNlSSpRUgV4LVRH6ur2AIl36nVqYusWxsnw/AE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=g7aIbATVuon/k6viupAiNs+QriVdSF0/cckSc2V6zQOe1BxLJuMdzkLB7Dtf0eo+fyqwoTjDF3I+8EBIMbLvFSCf7Org8SMK6/bqTHqHBFlQFT0x2Ynhl2+duSjfTglYhST4qa45mOHEvtGLfjkcdGnlYtWtlX+kBzPH4GwBRT8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=QUrqt32G; arc=none smtp.client-ip=91.218.175.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="QUrqt32G" Message-ID: <0487df3d-63cf-40a8-a23b-104fbde319e6@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1735291388; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=w7W4TmjLjLwZ2AscMx2sw/OXdWApgph7E/ld/WNfwgs=; b=QUrqt32Gb2qy8wjAa0MA1LoZ0RzNJFxvwP+0ApKwCjdiXAGnSJSUV+dYU9eUVYizv6enoa XpcFpXGXlETv6lQvV24wbOv1DRD26hEza/Sa63fu9ZVVJGr57M8ZHz6yrCHeZ6bahsFmx5 zq2vxo4sjzyQp13Ve+3JmvqwVgwpMwE= Date: Fri, 27 Dec 2024 10:23:04 +0100 Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH blktests v2 2/2] [NOT-FOR-MERGE] just for testing To: "Zhijian Li (Fujitsu)" , Shinichiro Kawasaki Cc: "linux-block@vger.kernel.org" , "linux-rdma@vger.kernel.org" References: <20241225093751.307267-1-lizhijian@fujitsu.com> <20241225093751.307267-2-lizhijian@fujitsu.com> <6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Zhu Yanjun In-Reply-To: <6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 27.12.24 06:37, Zhijian Li (Fujitsu) wrote: > Hi, Shin'ichiro, > > Your attached kconfig+this rnbd test triggered another BUG. > > Cced: RDMA > > Is this a known issue in RDMA/RXE communities? From my side, it should not be a known issue. It seems that it is related with this rnbd test. In previous tests, this problem does not appear. I am not sure if others also find this problem or not. To me, it is my first time to find this problem. Zhu Yanjun > > > On 26/12/2024 21:17, Shinichiro Kawasaki wrote: >> On Dec 25, 2024 / 17:37, Li Zhijian wrote: >>> Hi, Shin'ichiro >>> >>> All your comments has been addressed except the success ratio one. Could >>> you help to check this patch([NOT-FOR-MERGE] just for testing) that can tell >>> where it fails at in your envrionment. >>> >>> I tested it today in my QEMU enviroment, It almost 100% success >> >> Thanks for this effort. I ran rnbd/001 with this series in my QEMU environment. >> It looks still failing. Please find the 001.out.bad file generated [X]. The >> kernel was v6.13-rc4 with the fix patch "RDMA/ulp: Add missing deinit() call". >> >> I wonder what is the difference between your environment and mine. FYI, my QEMU >> environment has 4 CPUs and 16GB DRAM. It runs Fedora 40. I also attach the >> kernel config I used just in case you are interested in. > > > Due to this bug, I cannot finish rnbd/001 at all. > > However, I can reproduce your log by adding `_start_rnbd_client` before the iteration. > And it can be fixed by calling `_stop_rnbd_client` regardless of whether `_start_rnbd_client` > succeeds or not(Please feel free to give it a try when you have the opportunity). > > diff --git a/tests/rnbd/001 b/tests/rnbd/001 > index 9c6d56e3ee98..321c4c010e78 100755 > --- a/tests/rnbd/001 > +++ b/tests/rnbd/001 > @@ -26,6 +26,7 @@ test_start_stop() > local loop_dev i j=0 > loop_dev="$(losetup -f)" > > + _start_rnbd_client # this makes the _start_rnbd_client in below iteration fails > for ((i=0;i<100;i++)) > do > if _start_rnbd_client "${loop_dev}" &>/dev/null; then > @@ -33,6 +34,7 @@ test_start_stop() > _stop_rnbd_client &>/dev/null && echo 'disconnect ok' || echo 'disconnect not ok' > ((j++)) > else > + _stop_rnbd_client # always stop rnbd so that we can connect again. > echo 'connect not ok' > fi > done > > =========================== > > [ 27.864420] run blktests rnbd/001 at 2024-12-27 13:21:37 > [ 27.888742] infiniband eth0_rxe: set active > [ 27.889497] infiniband eth0_rxe: added eth0 > [ 27.910304] rnbd_client L599: Mapping device /dev/loop0 on session blktest, (access_mode: rw, nr_poll_queues: 0) > [ 27.924065] rnbd_client L1190: [session=blktest] mapped 4/4 default/read queues. > [ 27.925825] rnbd_server L782: : Opened device 'loop0' > [ 27.927554] rnbd_client L1612: map_device: Device mapped as rnbd0 (nsectors: 0, logical_block_size: 512, physical_block_size: 512, max_write_zeroes_sectors: 0, max_discard_sectors: 0, discard_granularity: 51 > 2, discard_alignment: 0, secure_discard: 0, max_segments: 128, max_hw_sectors: 248, wc: 0, fua: 0) > [ 27.938295] rnbd_client L323: Unmapping device, option: normal. > [ 27.962570] rnbd_server L238: : Device closed > [ 27.967500] BUG: kernel NULL pointer dereference, address: 0000000000000000 > [ 27.967500] BUG: kernel NULL pointer dereference, address: 0000000000000000 13:21:38 [11/9189] > [ 27.976554] #PF: supervisor read access in kernel mode > [ 27.984926] #PF: error_code(0x0000) - not-present page > [ 27.989126] PGD 0 P4D 0 > [ 27.991067] Oops: Oops: 0000 [#1] PREEMPT SMP PTI > [ 27.993226] CPU: 3 UID: 0 PID: 304 Comm: kworker/u20:2 Not tainted 6.13.0-rc3+ #1 > [ 27.996697] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 > [ 27.999333] Workqueue: rxe_wq do_work [rdma_rxe] > [ 28.000309] RIP: 0010:memcpy_orig+0xd5/0x140 > [ 28.001304] Code: 16 f8 4c 89 07 4c 89 4f 08 4c 89 54 17 f0 4c 89 5c 17 f8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 fa 08 72 1b <4c> 8b 06 4c 8b 4c 16 f8 4c 89 07 4c 89 4c 17 f8 c3 cc cc cc cc 66 > [ 28.004932] RSP: 0018:ffffb934c0643cc0 EFLAGS: 00010246 > [ 28.005845] RAX: ffff976bc1e12d5a RBX: 0000000000000000 RCX: 0000000000000000 > [ 28.007090] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff976bc1e12d5a > [ 28.008380] RBP: ffff976bc1e12d5a R08: 0000000000000001 R09: 0000000000000001 > [ 28.009639] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000080000000 > [ 28.010836] R13: 0000000000000008 R14: 0000000000000008 R15: 0000000000000008 > [ 28.011948] FS: 0000000000000000(0000) GS:ffff976f2fd80000(0000) knlGS:0000000000000000 > [ 28.013335] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 28.014275] CR2: 0000000000000000 CR3: 00000001837da002 CR4: 00000000001706f0 > [ 28.015424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 28.016598] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 28.017728] Call Trace: > [ 28.018114] > [ 28.018453] ? __die_body.cold+0x19/0x27 > [ 28.019167] ? page_fault_oops+0x15a/0x2d0 > [ 28.019861] ? search_module_extables+0x19/0x60 > [ 28.020617] ? search_bpf_extables+0x5f/0x80 > [ 28.021611] ? exc_page_fault+0x7e/0x180 > [ 28.022488] ? asm_exc_page_fault+0x26/0x30 > [ 28.023547] ? memcpy_orig+0xd5/0x140 > [ 28.024396] rxe_mr_copy+0x1c3/0x200 [rdma_rxe] > [ 28.025476] ? rxe_pool_get_index+0x4b/0x80 [rdma_rxe] > [ 28.026612] copy_data+0xa5/0x230 [rdma_rxe] > [ 28.027611] rxe_requester+0xd9b/0xf70 [rdma_rxe] > [ 28.028727] ? finish_task_switch.isra.0+0x99/0x2e0 > [ 28.029878] rxe_sender+0x13/0x40 [rdma_rxe] > [ 28.030920] do_task+0x68/0x1e0 [rdma_rxe] > [ 28.031893] process_one_work+0x177/0x330 > [ 28.032854] worker_thread+0x252/0x390 > [ 28.033748] ? __pfx_worker_thread+0x10/0x10 > [ 28.034665] kthread+0xd2/0x100 > [ 28.035382] ? __pfx_kthread+0x10/0x10 > [ 28.036252] ret_from_fork+0x34/0x50 > [ 28.037220] ? __pfx_kthread+0x10/0x10 > [ 28.038072] ret_from_fork_asm+0x1a/0x30 > [ 28.038991] > [ 28.039543] Modules linked in: loop rnbd_client rtrs_client rnbd_server rtrs_server rtrs_core rdma_cm iw_cm ib_cm rdma_rxe ib_uverbs ib_core ip6_udp_tunnel udp_tunnel rfkill intel_rapl_msr intel_rapl_common kmem rapl cxl_mem iTC > O_wdt intel_pmc_bxt cxl_pmem dax_hmem iTCO_vendor_support device_dax cxl_acpi cxl_pci cxl_port joydev qxl cxl_core pcspkr drm_ttm_helper lpc_ich ttm i2c_i801 virtio_balloon i2c_smbus nd_pmem nd_btt dax_pmem einj ip_tables crct10dif > _pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 sha256_ssse3 sha1_ssse3 virtiofs fuse virtio_net nfit virtio_console net_failover libnvdimm serio_raw virtio_blk failover qemu_fw_cf > g dm_multipath sunrpc > [ 28.051034] CR2: 0000000000000000 > [ 28.052072] ---[ end trace 0000000000000000 ]--- > [ 28.053099] RIP: 0010:memcpy_orig+0xd5/0x140 > [ 28.054188] Code: 16 f8 4c 89 07 4c 89 4f 08 4c 89 54 17 f0 4c 89 5c 17 f8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 fa 08 72 1b <4c> 8b 06 4c 8b 4c 16 f8 4c 89 07 4c 89 4c 17 f8 c3 cc cc cc cc 66 > [ 28.058290] RSP: 0018:ffffb934c0643cc0 EFLAGS: 00010246 > [ 28.059514] RAX: ffff976bc1e12d5a RBX: 0000000000000000 RCX: 0000000000000000 > [ 28.061194] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff976bc1e12d5a > [ 28.062588] RBP: ffff976bc1e12d5a R08: 0000000000000001 R09: 0000000000000001 > > > > >> >> >> [X] >> >> 001.out.bad >> ---------------------------------------------------------------------------- >> Running rnbd/001 >> connect ok >> disconnect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> connect not ok >> Failed: 1/100 >> Test complete