LTP test case dio04 test failed on 32bit kernel running linux next 20191107 kernel. Linux version 5.4.0-rc6-next-20191107. diotest4 1 TPASS : Negative Offset diotest4 2 TPASS : removed diotest4 3 TPASS : Odd count of read and write diotest4 4 TPASS : Read beyond the file size diotest4 5 TPASS : Invalid file descriptor diotest4 6 TPASS : Out of range file descriptor diotest4 7 TPASS : Closed file descriptor diotest4 8 TPASS : removed diotest4 9 TCONF : diotest4.c:345: Direct I/O on /dev/null is not supported diotest4 10 TPASS : read, write to a mmaped file diotest4 11 TPASS : read, write to an unmapped file diotest4 12 TPASS : read from file not open for reading diotest4 13 TPASS : write to file not open for writing diotest4 14 TPASS : read, write with non-aligned buffer diotest4 15 TFAIL : diotest4.c:476: read to read-only space. returns 0: Success diotest4 16 TFAIL : diotest4.c:180: read, write buffer in read-only space diotest4 17 TFAIL : diotest4.c:114: read allows nonexistant space. returns 0: Success diotest4 18 TFAIL : diotest4.c:129: write allows nonexistant space.returns -1: Invalid argument diotest4 19 TFAIL : diotest4.c:180: read, write in non-existant space diotest4 20 TPASS : read, write for file with O_SYNC diotest4 0 TINFO : 2/15 test blocks failed Test results comparison link, https://qa-reports.linaro.org/lkft/linux-next-oe/tests/ltp-dio-tests/dio04 Test case source link, https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/io/direct_io/diotest4.c Test case description: * NAME * diotest4.c * * DESCRIPTION * The program generates error conditions and verifies the error * code generated with the expected error value. The program also * tests some of the boundary condtions. The size of test file created * is filesize_in_blocks * 4k. * Test blocks: * [1] Negative Offset * [2] Negative count - removed 08/01/2003 - robbiew * [3] Odd count of read and write * [4] Read beyond the file size * [5] Invalid file descriptor * [6] Out of range file descriptor * [7] Closed file descriptor * [8] Directory read, write - removed 10/7/2002 - plars * [9] Character device (/dev/null) read, write * [10] read, write to a mmaped file * [11] read, write to an unmaped file with munmap * [12] read from file not open for reading * [13] write to file not open for writing * [14] read, write with non-aligned buffer * [15] read, write buffer in read-only space * [16] read, write in non-existant space * [17] read, write for file with O_SYNC metadata: git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git commit: c68c5373c504078cc0e0edc7d5c88b47ca308144 git describe: next-20191107 make_kernelversion: 5.4.0-rc6 kernel-config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-core2-32/lkft/linux-next/641/config build-location: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-core2-32/lkft/linux-next/641 Best regards Naresh Kamboju
