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[Bug 2033640] Re: zram01 from ubuntu_ltp_kernel_misc times out on B-lowlatency-5.4 node durin

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Po-Hsu Lin <2033640@xxxxxxxxxxxxxxxxxx>
Date: Thu, 31 Aug 2023 10:54:55 -0000
Reply-to: Bug 2033640 <2033640@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Experiment shows it will take 1847 seconds to run with this
configuration, slightly above the predefined threshold.

<<<test_start>>>
tag=zram01 stime=1693474029
cmdline="zram01.sh"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
zram01 1 TINFO: timeout per run is 8h 20m 0s
tst_supported_fs_types.c:89: TINFO: Kernel supports ext2
tst_supported_fs_types.c:54: TINFO: mkfs.ext2 does exist
tst_supported_fs_types.c:89: TINFO: Kernel supports ext3
tst_supported_fs_types.c:54: TINFO: mkfs.ext3 does exist
tst_supported_fs_types.c:89: TINFO: Kernel supports ext4
tst_supported_fs_types.c:54: TINFO: mkfs.ext4 does exist
tst_supported_fs_types.c:89: TINFO: Kernel supports xfs
tst_supported_fs_types.c:54: TINFO: mkfs.xfs does exist
tst_supported_fs_types.c:89: TINFO: Kernel supports btrfs
tst_supported_fs_types.c:54: TINFO: mkfs.btrfs does exist
tst_supported_fs_types.c:89: TINFO: Kernel supports vfat
tst_supported_fs_types.c:54: TINFO: mkfs.vfat does exist
tst_supported_fs_types.c:89: TINFO: Kernel supports exfat
tst_supported_fs_types.c:50: TINFO: mkfs.exfat does not exist
tst_supported_fs_types.c:157: TINFO: Skipping tmpfs as requested by the test
zram01 1 TINFO: timeout per run is 75h 0m 0s
zram01 1 TINFO: create '6' zram device(s)
zram01 1 TPASS: all zram devices (/dev/zram0~5) successfully created
zram01 1 TCONF: The device attribute max_comp_streams was introduced in kernel 3.15 and deprecated in 4.7
zram01 2 TINFO: test that we can set compression algorithm
zram01 2 TINFO: supported algs: lzo lzo-rle lz4 lz4hc 842 zstd 
zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'lzo'
zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'lzo-rle'
zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'lz4'
zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'lz4hc'
zram01 2 TINFO: /sys/block/zram0/comp_algorithm = '842'
zram01 2 TINFO: /sys/block/zram0/comp_algorithm = 'zstd'
zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'lzo'
zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'lzo-rle'
zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'lz4'
zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'lz4hc'
zram01 2 TINFO: /sys/block/zram1/comp_algorithm = '842'
zram01 2 TINFO: /sys/block/zram1/comp_algorithm = 'zstd'
zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'lzo'
zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'lzo-rle'
zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'lz4'
zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'lz4hc'
zram01 2 TINFO: /sys/block/zram2/comp_algorithm = '842'
zram01 2 TINFO: /sys/block/zram2/comp_algorithm = 'zstd'
zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'lzo'
zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'lzo-rle'
zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'lz4'
zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'lz4hc'
zram01 2 TINFO: /sys/block/zram3/comp_algorithm = '842'
zram01 2 TINFO: /sys/block/zram3/comp_algorithm = 'zstd'
zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'lzo'
zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'lzo-rle'
zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'lz4'
zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'lz4hc'
zram01 2 TINFO: /sys/block/zram4/comp_algorithm = '842'
zram01 2 TINFO: /sys/block/zram4/comp_algorithm = 'zstd'
zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'lzo'
zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'lzo-rle'
zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'lz4'
zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'lz4hc'
zram01 2 TINFO: /sys/block/zram5/comp_algorithm = '842'
zram01 2 TINFO: /sys/block/zram5/comp_algorithm = 'zstd'
zram01 2 TPASS: test succeeded
zram01 3 TINFO: set disk size to zram device(s)
zram01 3 TINFO: /sys/block/zram0/disksize = '26214400'
zram01 3 TINFO: /sys/block/zram1/disksize = '26214400'
zram01 3 TINFO: /sys/block/zram2/disksize = '26214400'
zram01 3 TINFO: /sys/block/zram3/disksize = '314572800'
zram01 3 TINFO: /sys/block/zram4/disksize = '402653184'
zram01 3 TINFO: /sys/block/zram5/disksize = '26214400'
zram01 3 TPASS: test succeeded
zram01 4 TINFO: set memory limit to zram device(s)
zram01 4 TINFO: /sys/block/zram0/mem_limit = '25M'
zram01 4 TINFO: /sys/block/zram1/mem_limit = '25M'
zram01 4 TINFO: /sys/block/zram2/mem_limit = '25M'
zram01 4 TINFO: /sys/block/zram3/mem_limit = '300M'
zram01 4 TINFO: /sys/block/zram4/mem_limit = '384M'
zram01 4 TINFO: /sys/block/zram5/mem_limit = '25M'
zram01 4 TPASS: test succeeded
zram01 5 TINFO: make ext2 filesystem on /dev/zram0
zram01 5 TINFO: make ext3 filesystem on /dev/zram1
zram01 5 TINFO: make ext4 filesystem on /dev/zram2
zram01 5 TINFO: make xfs filesystem on /dev/zram3
zram01 5 TINFO: make btrfs filesystem on /dev/zram4
zram01 5 TINFO: make vfat filesystem on /dev/zram5
zram01 5 TPASS: zram_makefs succeeded
zram01 6 TINFO: mount /dev/zram0
zram01 6 TINFO: mount /dev/zram1
zram01 6 TINFO: mount /dev/zram2
zram01 6 TINFO: mount /dev/zram3
zram01 6 TINFO: mount /dev/zram4
zram01 6 TINFO: mount /dev/zram5
zram01 6 TPASS: mount of zram device(s) succeeded
zram01 7 TINFO: filling zram0 (it can take long time)
zram01 7 TPASS: zram0 was filled with '24724' KB
zram01 7 TPASS: compression ratio: 343.38:1
zram01 7 TINFO: filling zram1 (it can take long time)
zram01 7 TPASS: zram1 was filled with '20628' KB
zram01 7 TPASS: compression ratio: 114.60:1
zram01 7 TINFO: filling zram2 (it can take long time)
zram01 7 TPASS: zram2 was filled with '20140' KB
zram01 7 TPASS: compression ratio: 296.17:1
zram01 7 TINFO: filling zram3 (it can take long time)
zram01 7 TPASS: zram3 was filled with '284800' KB
zram01 7 TPASS: compression ratio: 1655.81:1
zram01 7 TINFO: filling zram4 (it can take long time)
zram01 7 TPASS: zram4 was filled with '379717' KB
zram01 7 TPASS: compression ratio: 1043.17:1
zram01 7 TINFO: filling zram5 (it can take long time)
zram01 7 TPASS: zram5 was filled with '25568' KB
zram01 7 TPASS: compression ratio: 1065.33:1

Summary:
passed   18
failed   0
broken   0
skipped  1
warnings 0
<<<execution_status>>>
initiation_status="ok"
duration=1847 termination_type=exited termination_id=0 corefile=no
cutime=61752 cstime=125220
<<<test_end>>>
INFO: ltp-pan reported all tests PASS
LTP Version: 20230516

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

            Done executing testcases.
            LTP Version:  20230516
       ###############################################################

ubuntu@durin:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.8G     0  3.8G   0% /dev
tmpfs           786M  760K  785M   1% /run
/dev/sda2       916G   11G  859G   2% /
tmpfs           3.9G     0  3.9G   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/sda1       511M  5.3M  506M   2% /boot/efi
tmpfs           786M     0  786M   0% /run/user/1000
ubuntu@durin:~$ free -m
              total        used        free      shared  buff/cache   available
Mem:           7854         134        3353           0        4365        7416
Swap:          4095           0        4095
ubuntu@durin:~$ uname -a
Linux durin 5.4.0-162-lowlatency #179~18.04.1-Ubuntu SMP PREEMPT Fri Aug 18 14:27:52 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

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https://bugs.launchpad.net/bugs/2033640

Title:
   zram01 from ubuntu_ltp_kernel_misc times out on B-lowlatency-5.4 node
  durin

Status in ubuntu-kernel-tests:
  In Progress

Bug description:
  Issue found with 5.4.0-162.179~18.04.1 on node durin.

  Test timeout with the default 30 min threshold.

  Test log:
       START    ubuntu_ltp_kernel_misc.zram01    ubuntu_ltp_kernel_misc.zram01    timestamp=1693394821    timeout=1800    localtime=Aug 30 11:27:01      
   Persistent state client._record_indent now set to 2
   Persistent state client.unexpected_reboot now set to ('ubuntu_ltp_kernel_misc.zram01', 'ubuntu_ltp_kernel_misc.zram01')
   Waiting for pid 24933 for 1800 seconds
   Timer expired (1800 sec.), nuking pid 24933
           ERROR    ubuntu_ltp_kernel_misc.zram01    ubuntu_ltp_kernel_misc.zram01    timestamp=1693396623    localtime=Aug 30 11:57:03    Test timeout expired, rc=15
       END ERROR    ubuntu_ltp_kernel_misc.zram01    ubuntu_ltp_kernel_misc.zram01    timestamp=1693396623    localtime=Aug 30 11:57:03

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References

[Bug 2033640] [NEW] zram01 from ubuntu_ltp_kernel_misc times out on B-lowlatency-5.4 node durin
From: Po-Hsu Lin, 2023-08-31