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Date: Fri, 30 Sep 2022 15:51:06 +0800 From: kernel test robot <yujie.liu@...el.com> To: Patrick Rohr <prohr@...gle.com> CC: <lkp@...ts.01.org>, <lkp@...el.com>, "David S. Miller" <davem@...emloft.net>, Maciej Żenczykowski <maze@...gle.com>, Lorenzo Colitti <lorenzo@...gle.com>, Jason Wang <jasowang@...hat.com>, Stephen Hemminger <stephen@...workplumber.org>, Nicolas Dichtel <nicolas.dichtel@...nd.com>, <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>, <ltp@...ts.linux.it> Subject: [tun] 195624d9c2: ltp.ioctl03.fail Hi Patrick, We noticed that below commit introduced a new flag IFF_NO_CARRIER, and looks like it triggers a failure of unknown flag in LTP testcase. We don't have enough knowledge about whether this is a real issue, but the test result is impacted by this change, so we send this report FYI and cc LTP mailing list. Thanks. Greeting, FYI, we noticed the following commit (built with gcc-11): commit: 195624d9c26b64c6856863da30ec578a790feec4 ("tun: support not enabling carrier in TUNSETIFF") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: ltp version: ltp-x86_64-14c1f76-1_20220929 with following parameters: disk: 1HDD fs: btrfs test: syscalls-03 test-description: The LTP testsuite contains a collection of tools for testing the Linux kernel and related features. test-url: http://linux-test-project.github.io/ on test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): <<<test_start>>> tag=ioctl03 stime=1664480977 cmdline="ioctl03" contacts="" analysis=exit <<<test_output>>> tst_test.c:1526: TINFO: Timeout per run is 0h 02m 30s ioctl03.c:76: TINFO: Available features are: 0x7173 ioctl03.c:80: TPASS: TUN 0x1 ioctl03.c:80: TPASS: TAP 0x2 ioctl03.c:80: TPASS: NO_PI 0x1000 ioctl03.c:80: TPASS: ONE_QUEUE 0x2000 ioctl03.c:80: TPASS: VNET_HDR 0x4000 ioctl03.c:80: TPASS: MULTI_QUEUE 0x100 ioctl03.c:80: TPASS: IFF_NAPI 0x10 ioctl03.c:80: TPASS: IFF_NAPI_FRAGS 0x20 ioctl03.c:85: TFAIL: (UNKNOWN 0x40) Summary: passed 8 failed 1 broken 0 skipped 0 warnings 0 <<<execution_status>>> initiation_status="ok" duration=0 termination_type=exited termination_id=1 corefile=no cutime=0 cstime=0 <<<test_end>>> We also run this testcase on the parent commit of 195624d9c2, which is: commit: 504c25cb76a9cb805407f7701b25a1fbd48605fa ("Merge tag 'net-6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net") Here we put the test log of commit 504c25cb76 as comparison: <<<test_start>>> tag=ioctl03 stime=1664418134 cmdline="ioctl03" contacts="" analysis=exit <<<test_output>>> tst_test.c:1526: TINFO: Timeout per run is 0h 02m 30s ioctl03.c:76: TINFO: Available features are: 0x7133 ioctl03.c:80: TPASS: TUN 0x1 ioctl03.c:80: TPASS: TAP 0x2 ioctl03.c:80: TPASS: NO_PI 0x1000 ioctl03.c:80: TPASS: ONE_QUEUE 0x2000 ioctl03.c:80: TPASS: VNET_HDR 0x4000 ioctl03.c:80: TPASS: MULTI_QUEUE 0x100 ioctl03.c:80: TPASS: IFF_NAPI 0x10 ioctl03.c:80: TPASS: IFF_NAPI_FRAGS 0x20 Summary: passed 8 failed 0 broken 0 skipped 0 warnings 0 <<<execution_status>>> initiation_status="ok" duration=0 termination_type=exited termination_id=0 corefile=no cutime=0 cstime=0 <<<test_end>>> If you fix the issue, kindly add following tag | Reported-by: kernel test robot <yujie.liu@...el.com> | Link: https://lore.kernel.org/r/202209301554.14621f76-yujie.liu@intel.com To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests sudo bin/lkp install job.yaml # job file is attached in this email bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run sudo bin/lkp run generated-yaml-file # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. -- 0-DAY CI Kernel Test Service https://01.org/lkp View attachment "config-6.0.0-rc6-00167-g195624d9c26b" of type "text/plain" (167471 bytes) View attachment "job-script" of type "text/plain" (5817 bytes) Download attachment "dmesg.xz" of type "application/x-xz" (87668 bytes) View attachment "ltp" of type "text/plain" (187051 bytes) View attachment "job.yaml" of type "text/plain" (4780 bytes) View attachment "reproduce" of type "text/plain" (290 bytes)
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