Hello, kernel test robot noticed "ltp.ioctl_loop06.fail" on: commit: 18048c1af7836b8e31739d9eaefebc2bf76261f7 ("loop: Fix a race between loop detach and loop open") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master 1eb586a9782cde8e5091b9de74603e0a8386b09e] in testcase: ltp version: ltp-x86_64-14c1f76-1_20240629 with following parameters: disk: 1HDD fs: btrfs test: syscalls-01/ioctl_loop06 compiler: gcc-13 test machine: 4 threads 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz (Ivy Bridge) with 8G memory (please refer to attached dmesg/kmsg for entire log/backtrace) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <oliver.sang@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-lkp/202407022125.e7ba93db-oliver.sang@xxxxxxxxx Running tests....... <<<test_start>>> tag=ioctl_loop06 stime=1719779316 cmdline="ioctl_loop06" contacts="" analysis=exit <<<test_output>>> tst_test.c:1734: TINFO: LTP version: 20240524-67-g072f359ac tst_test.c:1618: TINFO: Timeout per run is 0h 02m 30s tst_device.c:96: TINFO: Found free device 0 '/dev/loop0' ioctl_loop06.c:74: TINFO: Using LOOP_SET_BLOCK_SIZE with arg < 512 ioctl_loop06.c:65: TPASS: Set block size failed as expected: EINVAL (22) ioctl_loop06.c:74: TINFO: Using LOOP_SET_BLOCK_SIZE with arg > PAGE_SIZE ioctl_loop06.c:65: TPASS: Set block size failed as expected: EINVAL (22) ioctl_loop06.c:74: TINFO: Using LOOP_SET_BLOCK_SIZE with arg != power_of_2 ioctl_loop06.c:65: TPASS: Set block size failed as expected: EINVAL (22) ioctl_loop06.c:74: TINFO: Using LOOP_CONFIGURE with block_size < 512 ioctl_loop06.c:67: TFAIL: Set block size failed expected EINVAL got: EBUSY (16) ioctl_loop06.c:74: TINFO: Using LOOP_CONFIGURE with block_size > PAGE_SIZE ioctl_loop06.c:67: TFAIL: Set block size failed expected EINVAL got: EBUSY (16) ioctl_loop06.c:74: TINFO: Using LOOP_CONFIGURE with block_size != power_of_2 ioctl_loop06.c:67: TFAIL: Set block size failed expected EINVAL got: EBUSY (16) Summary: passed 3 failed 3 broken 0 skipped 0 warnings 0 incrementing stop <<<execution_status>>> initiation_status="ok" duration=0 termination_type=exited termination_id=1 corefile=no cutime=0 cstime=23 <<<test_end>>> INFO: ltp-pan reported some tests FAIL LTP Version: 20240524-67-g072f359ac ############################################################### Done executing testcases. LTP Version: 20240524-67-g072f359ac ############################################################### The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240702/202407022125.e7ba93db-oliver.sang@xxxxxxxxx -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki