[LTP] [PATCH V6 for-6.11/block] loop: Fix a race between loop detach and loop open

[kernel test robot]

Hello,

kernel test robot noticed "ltp.ioctl_loop06.fail" on:

commit: a167a9996e22ae0d108307fbc66b811d821ffbe7 ("[PATCH V6 for-6.11/block] loop: Fix a race between loop detach and loop open")
url: https://github.com/intel-lab-lkp/linux/commits/Gulam-Mohamed/loop-Fix-a-race-between-loop-detach-and-loop-open/20240619-004334
base: https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-next
patch link: https://lore.kernel.org/all/20240618164042.343777-1-gulam.mohamed@oracle.com/
patch subject: [PATCH V6 for-6.11/block] loop: Fix a race between loop detach and loop open

in testcase: ltp
version: ltp-x86_64-14c1f76-1_20240615
with following parameters:

	disk: 1HDD
	fs: f2fs
	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@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202406281350.b7298127-oliver.sang@intel.com



Running tests.......
<<<test_start>>>
tag=ioctl_loop06 stime=1719063458
cmdline="ioctl_loop06"
contacts=""
analysis=exit
<<<test_output>>>
tst_test.c:1734: TINFO: LTP version: 20240524-41-g248223546
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=3
<<<test_end>>>
INFO: ltp-pan reported some tests FAIL
LTP Version: 20240524-41-g248223546

       ###############################################################

            Done executing testcases.
            LTP Version:  20240524-41-g248223546
       ###############################################################




The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240628/202406281350.b7298127-oliver.sang@intel.com



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https://github.com/intel/lkp-tests/wiki