From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3814CC433E0 for ; Fri, 5 Jun 2020 09:27:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 138A7207D5 for ; Fri, 5 Jun 2020 09:27:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726326AbgFEJ1U (ORCPT ); Fri, 5 Jun 2020 05:27:20 -0400 Received: from mail.cn.fujitsu.com ([183.91.158.132]:20082 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726177AbgFEJ1T (ORCPT ); Fri, 5 Jun 2020 05:27:19 -0400 X-IronPort-AV: E=Sophos;i="5.73,475,1583164800"; d="scan'208";a="93901010" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 05 Jun 2020 17:27:12 +0800 Received: from G08CNEXMBPEKD04.g08.fujitsu.local (unknown [10.167.33.201]) by cn.fujitsu.com (Postfix) with ESMTP id 15B324BCC8BD; Fri, 5 Jun 2020 17:27:10 +0800 (CST) Received: from [10.167.220.84] (10.167.220.84) by G08CNEXMBPEKD04.g08.fujitsu.local (10.167.33.201) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 5 Jun 2020 17:27:10 +0800 Subject: Re: [LTP] LTP: syscalls: regression on mainline - ioctl_loop01 mknod07 setns01 To: Martijn Coenen CC: Naresh Kamboju , Jens Axboe , Arnd Bergmann , Viresh Kumar , open list , Richard Palethorpe , linux-block , , Christoph Hellwig , LTP List References: <14be1119-50a7-3861-dfd4-42a239413ee7@cn.fujitsu.com> From: Yang Xu Message-ID: <5e992dc1-c60b-bfd0-a993-dfbd0572d499@cn.fujitsu.com> Date: Fri, 5 Jun 2020 17:27:02 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.167.220.84] X-ClientProxiedBy: G08CNEXCHPEKD04.g08.fujitsu.local (10.167.33.200) To G08CNEXMBPEKD04.g08.fujitsu.local (10.167.33.201) X-yoursite-MailScanner-ID: 15B324BCC8BD.A56BD X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: xuyang2018.jy@cn.fujitsu.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Martign Also for your kernel commit, lo->lo_flags |= prev_lo_flags & ~LOOP_SET_STATUS_SETTABLE_FLAGS; lo->lo_flags |= prev_lo_flags & ~LOOP_SET_STATUS_CLEARABLE_FLAGS; since ~LOOP_SET_STATUS_SETTABLE_FLAGS has been included in ~LOOP_SET_STATUS_CLEARABLE_FLAGS, do we still need the previous step? What do you think about it? Best Regards Yang Xu > Hey Yang, > > On Fri, Jun 5, 2020 at 10:59 AM Yang Xu wrote: >> >> Hi Martijn >> >> Sorry for noise. I see your patch in here[1] . I will modify >> ioctl_loop01 to test that LO_FLAGS_PARTSCAN can not clear and >> LO_FLAGS_AUTOCLEAR can be clear. > > Thanks, that would indeed be useful. > >> >> ps: Giving the url of patch is better so that other people doesn't need >> to investigate it again. >> [1]https://patchwork.kernel.org/patch/11588321/ > > Ok, will do next time! > > Best, > Martijn >> >> Best Regards >> Yang Xu >>> Hi Martijn >>> >>>> Hi Naresh, >>>> >>>> I just sent a patch and cc'd you. I verified all the loop tests pass >>>> again with that patch. >>> I think you want to say "without". I verified the ioctl_loop01 fails >>> with faf1d25440 ("loop: Clean up LOOP_SET_STATUS lo_flags handling"). >>> >>> This kernel commit breaks old behaviour(if old flag all 0, new flag is >>> always 0 regradless your flag setting). >>> >>> I think we should modify code as below: >>> diff --git a/drivers/block/loop.c b/drivers/block/loop.c >>> index 13518ba191f5..c6ba8cf486ce 100644 >>> --- a/drivers/block/loop.c >>> +++ b/drivers/block/loop.c >>> @@ -1364,11 +1364,9 @@ loop_set_status(struct loop_device *lo, const >>> struct loop_info64 *info) >>> if (err) >>> goto out_unfreeze; >>> >>> - /* Mask out flags that can't be set using LOOP_SET_STATUS. */ >>> - lo->lo_flags &= ~LOOP_SET_STATUS_SETTABLE_FLAGS; >>> - /* For those flags, use the previous values instead */ >>> - lo->lo_flags |= prev_lo_flags & ~LOOP_SET_STATUS_SETTABLE_FLAGS; >>> - /* For flags that can't be cleared, use previous values too */ >>> + /* Mask out flags that can be set using LOOP_SET_STATUS. */ >>> + lo->lo_flags &= LOOP_SET_STATUS_SETTABLE_FLAGS; >>> + /* For flags that can't be cleared, use previous values. */ >>> lo->lo_flags |= prev_lo_flags &~LOOP_SET_STATUS_CLEARABLE_FLAGS; >>> >>> Best Regards >>> Yang Xu >>>> >>>> Thanks, >>>> Martijn >>>> >>>> >>>> On Thu, Jun 4, 2020 at 9:10 PM Martijn Coenen wrote: >>>>> >>>>> Hi Naresh, >>>>> >>>>> I suspect the loop failures are due to >>>>> faf1d25440d6ad06d509dada4b6fe62fea844370 ("loop: Clean up >>>>> LOOP_SET_STATUS lo_flags handling"), I will investigate and get back >>>>> to you. >>>>> >>>>> Thanks, >>>>> Martijn >>>>> >>>>> On Thu, Jun 4, 2020 at 7:19 PM Naresh Kamboju >>>>> wrote: >>>>>> >>>>>> + linux-block@vger.kernel.org >>>>>> >>>>>> On Thu, 4 Jun 2020 at 22:47, Naresh Kamboju >>>>>> wrote: >>>>>>> >>>>>>> Following three test cases reported as regression on Linux mainline >>>>>>> kernel >>>>>>> on x86_64, arm64, arm and i386 >>>>>>> >>>>>>> ltp-syscalls-tests: >>>>>>> * ioctl_loop01 >>>>>>> * mknod07 >>>>>>> * setns01 >>>>>>> >>>>>>> git repo: >>>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >>>>>>> git branch: master >>>>>>> GOOD: >>>>>>> git commit: b23c4771ff62de8ca9b5e4a2d64491b2fb6f8f69 >>>>>>> git describe: v5.7-1230-gb23c4771ff62 >>>>>>> BAD: >>>>>>> git commit: 1ee08de1e234d95b5b4f866878b72fceb5372904 >>>>>>> git describe: v5.7-3523-g1ee08de1e234 >>>>>>> >>>>>>> kernel-config: >>>>>>> https://builds.tuxbuild.com/U3bU0dMA62OVHb4DvZIVuw/kernel.config >>>>>>> >>>>>>> We are investigating these failures. >>>>>>> >>>>>>> tst_test.c:906: CONF: btrfs driver not available >>>>>>> tst_test.c:1246: INFO: Timeout per run is 0h 15m 00s >>>>>>> tst_device.c:88: INFO: Found free device 1 '/dev/loop1' >>>>>>> ioctl_loop01.c:49: PASS: /sys/block/loop1/loop/partscan = 0 >>>>>>> [ 1073.639677] loop_set_status: loop1 () has still dirty pages >>>>>>> (nrpages=1) >>>>>>> ioctl_loop01.c:50: PASS: /sys/block/loop1/loop/autoclear = 0 >>>>>>> ioctl_loop01.c:51: PASS: /sys/block/loop1/loop/backing_file = >>>>>>> '/scratch/ltp-mnIdulzriQ/9cPtLQ/test.img' >>>>>>> ioctl_loop01.c:63: FAIL: expect 12 but got 17 >>>>>>> ioctl_loop01.c:67: FAIL: /sys/block/loop1/loop/partscan != 1 got 0 >>>>>>> ioctl_loop01.c:68: FAIL: /sys/block/loop1/loop/autoclear != 1 got 0 >>>>>>> ioctl_loop01.c:79: FAIL: access /dev/loop1p1 fails >>>>>>> [ 1073.679678] loop_set_status: loop1 () has still dirty pages >>>>>>> (nrpages=1) >>>>>>> ioctl_loop01.c:85: FAIL: access /sys/block/loop1/loop1p1 fails >>>>>>> >>>>>>> HINT: You _MAY_ be missing kernel fixes, see: >>>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=10c70d95c0f2 >>>>>>> >>>>>>> >>>>>>> mke2fs 1.43.8 (1-Jan-2018) >>>>>>> [ 1264.711379] EXT4-fs (loop0): mounting ext2 file system using the >>>>>>> ext4 subsystem >>>>>>> [ 1264.716642] EXT4-fs (loop0): mounted filesystem without journal. >>>>>>> Opts: (null) >>>>>>> mknod07 0 TINFO : Using test device LTP_DEV='/dev/loop0' >>>>>>> mknod07 0 TINFO : Formatting /dev/loop0 with ext2 opts='' >>>>>>> extra opts='' >>>>>>> mknod07 1 TPASS : mknod failed as expected: >>>>>>> TEST_ERRNO=EACCES(13): Permission denied >>>>>>> mknod07 2 TPASS : mknod failed as expected: >>>>>>> TEST_ERRNO=EACCES(13): Permission denied >>>>>>> mknod07 3 TFAIL : mknod07.c:155: mknod succeeded unexpectedly >>>>>>> mknod07 4 TPASS : mknod failed as expected: >>>>>>> TEST_ERRNO=EPERM(1): Operation not permitted >>>>>>> mknod07 5 TPASS : mknod failed as expected: >>>>>>> TEST_ERRNO=EROFS(30): Read-only file system >>>>>>> mknod07 6 TPASS : mknod failed as expected: >>>>>>> TEST_ERRNO=ELOOP(40): Too many levels of symbolic links >>>>>>> >>>>>>> >>>>>>> setns01 0 TINFO : ns_name=ipc, ns_fds[0]=6, >>>>>>> ns_types[0]=0x8000000 >>>>>>> setns01 0 TINFO : ns_name=mnt, ns_fds[1]=7, ns_types[1]=0x20000 >>>>>>> setns01 0 TINFO : ns_name=net, ns_fds[2]=8, >>>>>>> ns_types[2]=0x40000000 >>>>>>> setns01 0 TINFO : ns_name=pid, ns_fds[3]=9, >>>>>>> ns_types[3]=0x20000000 >>>>>>> setns01 0 TINFO : ns_name=uts, ns_fds[4]=10, >>>>>>> ns_types[4]=0x4000000 >>>>>>> setns01 0 TINFO : setns(-1, 0x8000000) >>>>>>> setns01 1 TPASS : invalid fd exp_errno=9 >>>>>>> setns01 0 TINFO : setns(-1, 0x20000) >>>>>>> setns01 2 TPASS : invalid fd exp_errno=9 >>>>>>> setns01 0 TINFO : setns(-1, 0x40000000) >>>>>>> setns01 3 TPASS : invalid fd exp_errno=9 >>>>>>> setns01 0 TINFO : setns(-1, 0x20000000) >>>>>>> setns01 4 TPASS : invalid fd exp_errno=9 >>>>>>> setns01 0 TINFO : setns(-1, 0x4000000) >>>>>>> setns01 5 TPASS : invalid fd exp_errno=9 >>>>>>> setns01 0 TINFO : setns(11, 0x8000000) >>>>>>> setns01 6 TFAIL : setns01.c:176: regular file fd exp_errno=22: >>>>>>> errno=EBADF(9): Bad file descriptor >>>>>>> setns01 0 TINFO : setns(11, 0x20000) >>>>>>> setns01 7 TFAIL : setns01.c:176: regular file fd exp_errno=22: >>>>>>> errno=EBADF(9): Bad file descriptor >>>>>>> setns01 0 TINFO : setns(11, 0x40000000) >>>>>>> setns01 8 TFAIL : setns01.c:176: regular file fd exp_errno=22: >>>>>>> errno=EBADF(9): Bad file descriptor >>>>>>> setns01 0 TINFO : setns(11, 0x20000000) >>>>>>> setns01 9 TFAIL : setns01.c:176: regular file fd exp_errno=22: >>>>>>> errno=EBADF(9): Bad file descriptor >>>>>>> setns01 0 TINFO : setns(11, 0x4000000) >>>>>>> setns01 10 TFAIL : setns01.c:176: regular file fd exp_errno=22: >>>>>>> errno=EBADF(9): Bad file descriptor >>>>>>> >>>>>>> Full test log link, >>>>>>> https://lkft.validation.linaro.org/scheduler/job/1467931#L8047 >>>>>>> >>>>>>> test results comparison shows this test case started failing from >>>>>>> June-2-2020 >>>>>>> https://qa-reports.linaro.org/lkft/linux-mainline-oe/build/v5.7-4092-g38696e33e2bd/testrun/2779586/suite/ltp-syscalls-tests/test/ioctl_loop01/history/ >>>>>>> >>>>>>> >>>>>>> https://qa-reports.linaro.org/lkft/linux-mainline-oe/build/v5.7-4092-g38696e33e2bd/testrun/2779586/suite/ltp-syscalls-tests/test/setns01/history/ >>>>>>> >>>>>>> >>>>>>> https://qa-reports.linaro.org/lkft/linux-mainline-oe/build/v5.7-4092-g38696e33e2bd/testrun/2779586/suite/ltp-syscalls-tests/test/mknod07/history/ >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Linaro LKFT >>>>>>> https://lkft.linaro.org >>>> >>>> >>> >>> >>> >> >> > >