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[Bug 1926390] Re: zram01 from kernel_misc in ubuntu_ltp fails on focal/hwe-5.8 (arithmetic expression)

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Po-Hsu Lin <1926390@xxxxxxxxxxxxxxxxxx>
Date: Wed, 20 Dec 2023 01:53:59 -0000
Reply-to: Bug 1926390 <1926390@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
** Tags removed: ubuntu-ltp
** Tags added: ubuntu-ltp-kernel-misc

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https://bugs.launchpad.net/bugs/1926390

Title:
  zram01 from kernel_misc in ubuntu_ltp fails on focal/hwe-5.8
  (arithmetic expression)

Status in ubuntu-kernel-tests:
  New

Bug description:
  Failing on Focal/hwe-5.8 5.8.0-51.57~20.04.1 on host mcdivitt34-kernel

  
  Not a regression as this is previously seen on 5.8.0-49.55~20.04.1


  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 1 TINFO: timeout per run is 0h 25m 0s
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:88: TINFO: Kernel supports ext2
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:50: TINFO: mkfs.ext2 does exist
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:88: TINFO: Kernel supports ext3
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:50: TINFO: mkfs.ext3 does exist
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:88: TINFO: Kernel supports ext4
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:50: TINFO: mkfs.ext4 does exist
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:88: TINFO: Kernel supports xfs
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:50: TINFO: mkfs.xfs does exist
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:88: TINFO: Kernel supports btrfs
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:50: TINFO: mkfs.btrfs does exist
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:88: TINFO: Kernel supports vfat
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:50: TINFO: mkfs.vfat does exist
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:88: TINFO: Kernel supports exfat
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:46: TINFO: mkfs.exfat does not exist
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:88: TINFO: Kernel supports tmpfs
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tst_supported_fs_types.c:37: TINFO: mkfs is not needed for tmpfs
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 1 TINFO: timeout per run is 3h 45m 0s
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 1 TINFO: create '6' zram device(s)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 1 TPASS: all zram devices successfully created
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 1 TCONF: The device attribute max_comp_streams was introduced in kernel 3.15 and deprecated in 4.7
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: test that we can set compression algorithm
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: supported algs: lzo lzo-rle lz4 lz4hc 842 zstd 
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'lzo' (0/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'lzo-rle' (0/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'lz4' (0/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'lz4hc' (0/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram0/comp_algorithm = '842' (0/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'zstd' (0/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'lzo' (1/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'lzo-rle' (1/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'lz4' (1/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'lz4hc' (1/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram1/comp_algorithm = '842' (1/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'zstd' (1/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'lzo' (2/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'lzo-rle' (2/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'lz4' (2/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'lz4hc' (2/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram2/comp_algorithm = '842' (2/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'zstd' (2/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'lzo' (3/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'lzo-rle' (3/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'lz4' (3/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'lz4hc' (3/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram3/comp_algorithm = '842' (3/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'zstd' (3/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'lzo' (4/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'lzo-rle' (4/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'lz4' (4/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'lz4hc' (4/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram4/comp_algorithm = '842' (4/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'zstd' (4/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'lzo' (5/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'lzo-rle' (5/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'lz4' (5/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'lz4hc' (5/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram5/comp_algorithm = '842' (5/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'zstd' (5/5)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 2 TPASS: test succeeded
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 3 TINFO: set disk size to zram device(s)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 3 TINFO: /sys/block/zram0/disksize = '26214400' (1/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 3 TINFO: /sys/block/zram1/disksize = '26214400' (2/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 3 TINFO: /sys/block/zram2/disksize = '26214400' (3/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 3 TINFO: /sys/block/zram3/disksize = '26214400' (4/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 3 TINFO: /sys/block/zram4/disksize = '402653184' (5/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 3 TINFO: /sys/block/zram5/disksize = '26214400' (6/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 3 TPASS: test succeeded
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 4 TINFO: set memory limit to zram device(s)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 4 TINFO: /sys/block/zram0/mem_limit = '25M' (1/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 4 TINFO: /sys/block/zram1/mem_limit = '25M' (2/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 4 TINFO: /sys/block/zram2/mem_limit = '25M' (3/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 4 TINFO: /sys/block/zram3/mem_limit = '25M' (4/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 4 TINFO: /sys/block/zram4/mem_limit = '384M' (5/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 4 TINFO: /sys/block/zram5/mem_limit = '25M' (6/6)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 4 TPASS: test succeeded
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 5 TINFO: make ext2 filesystem on /dev/zram0
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 5 TINFO: make ext3 filesystem on /dev/zram1
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 5 TINFO: make ext4 filesystem on /dev/zram2
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 5 TINFO: make xfs filesystem on /dev/zram3
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 5 TINFO: make btrfs filesystem on /dev/zram4
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 5 TINFO: make vfat filesystem on /dev/zram5
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 5 TPASS: zram_makefs succeeded
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 6 TINFO: mount /dev/zram0
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 6 TINFO: mount /dev/zram1
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 6 TINFO: mount /dev/zram2
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 6 TINFO: mount /dev/zram3
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 6 TINFO: mount /dev/zram4
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 6 TINFO: mount /dev/zram5
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 6 TPASS: mount of zram device(s) succeeded
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TINFO: filling zram0 (it can take long time)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: zram0 was filled with '24724' KB
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: compression ratio: 2978.16:1
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TINFO: filling zram1 (it can take long time)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: zram1 was filled with '20628' KB
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: compression ratio: 1066.39:1
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TINFO: filling zram2 (it can take long time)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: zram2 was filled with '20140' KB
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: compression ratio: 10871.56:1
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TINFO: filling zram3 (it can take long time)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: zram3 was filled with '19168' KB
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: compression ratio: 1596.29:1
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TINFO: filling zram4 (it can take long time)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: zram4 was filled with '329281' KB
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: compression ratio: 11201.37:1
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TINFO: filling zram5 (it can take long time)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram01 7 TPASS: zram5 was filled with '25568' KB
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] /opt/ltp/testcases/bin/zram01.sh: 129: arithmetic expression: division by zero: "100 * 1024 * 25568 / 0"
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] tag=zram01 stime=1619248665 dur=656 exit=exited stat=2 core=no cu=43664 cs=23788
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] startup='Sat Apr 24 07:28:47 2021'
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram02 1 TINFO: timeout per run is 0h 5m 0s
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram02 1 TINFO: timeout per run is 0h 7m 30s
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram02 1 TINFO: create '1' zram device(s)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram02 1 TFAIL: unexpected num of devices: 6
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] /opt/ltp/testcases/bin/zram02.sh: 29: echo: echo: I/O error
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram02 1 TINFO: AppArmor enabled, this may affect test results
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram02 1 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] zram02 1 TINFO: loaded AppArmor profiles: none
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] 
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] Summary:
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] passed   0
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] failed   1
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] broken   0
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] skipped  0
  04/24 07:28:52 DEBUG|     utils:0153| [stdout] warnings 0

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