jtop only works with sudo jetpack 4.5.1 xavier NX

[issamsaid]

Describe the bug jtop does not work unless used with sudo on the latest jetpack version

To Reproduce Steps to reproduce the behavior:

1. install 4.5.1 on xavier NX
2. IMPORTANT - copy the rootfs to nvme (the board is booting from nvme)
3. install jteston-stats
4. try jtop

Screenshots

• when running without sudo : you can see the ncurse window created for a second and then Traceback (most recent call last): File "/usr/local/bin/jtop", line 11, in sys.exit(main()) File "/usr/local/lib/python2.7/dist-packages/jtop/main.py", line 148, in main curses.wrapper(JTOPGUI, jetson, [ALL, GPU, CPU, MEM, CTRL, INFO], init_page=args.page, loop=args.loop, seconds=LOOP_SECONDS) File "/usr/lib/python2.7/curses/wrapper.py", line 43, in wrapper return func(stdscr, *args, **kwds) File "/usr/local/lib/python2.7/dist-packages/jtop/gui/jtopgui.py", line 109, in init self.run(loop, seconds) File "/usr/local/lib/python2.7/dist-packages/jtop/gui/jtopgui.py", line 136, in run while not self.events() and self.jetson.ok(spin=True): File "/usr/local/lib/python2.7/dist-packages/jtop/jtop.py", line 1056, in ok raise ex_value IndexError: list index out of range

• with sudo it works fine

PLEASE NOTE THAT the board had been rebooted many times after the installation.

Expected behavior A clear and concise description of what you expected to happen.

Additional context Add any other context about the problem here.

Board

• jetson xavier NX

Jetpack

• Jetpack: 4.5.1
• L4T: 32.5.1

Jetson-Stats

• Version: 3.1.0

[issamsaid]

and sometimes it returns: jtop I can't access to jetson_stats.service. Please logout or reboot this board.

NOTE that the board have been rebooted multiple times.

[kouta-kun]

+1 on a Jetson Nano w/ Jetpack 4.5.1

[rbonghi]

I will work on it, soon as possible

[kouta-kun]

Forcing reinstall jetson_stats seems to fix it for a couple of reboots on my devices

[issamsaid]

Forcing reinstall jetson_stats seems to fix it for a couple of reboots on my devices

It did not solve it on my end.

[issamsaid]

I found the problem: when parsing for JETSON env in /usr/local/lib/python3.6/dist-packages/jtop/core/common.py sometimes the entries in the env files has tokens that expend into multiple lines and therefor the value = tup[1].strip() might fail. The fix would be to only check for tup[1] when tup[0] is related to JETSON env:

def import_os_variables(SOURCE, PATTERN):
    if os.path.isfile(SOURCE):
        logger.debug("Open source file {source}".format(source=SOURCE))
        proc = sp.Popen(['bash', '-c', 'source {source} && env'.format(source=SOURCE)], stdout=sp.PIPE, stderr=sp.PIPE)
        # Load variables
        source_env = {}
        for tup in map(lambda s: s.decode("utf-8").strip().split('=', 1), proc.stdout):
            name = tup[0].strip()
            if PATTERN in name:
                value = tup[1].strip()
                source_env[name] = value
        return source_env
    else:
        logger.error("File does not exist")
        return {}

[zinwalin]

same here.

I can't access to jetson_stats.service. Please logout or reboot this board.

Jetpack 4.5

[Tiryoh]

I found the problem: when parsing for JETSON env in /usr/local/lib/python3.6/dist-packages/jtop/core/common.py sometimes the entries in the env files has tokens that expend into multiple lines and therefor the value = tup[1].strip() might fail. The fix would be to only check for tup[1] when tup[0] is related to JETSON env:

def import_os_variables(SOURCE, PATTERN):
    if os.path.isfile(SOURCE):
        logger.debug("Open source file {source}".format(source=SOURCE))
        proc = sp.Popen(['bash', '-c', 'source {source} && env'.format(source=SOURCE)], stdout=sp.PIPE, stderr=sp.PIPE)
        # Load variables
        source_env = {}
        for tup in map(lambda s: s.decode("utf-8").strip().split('=', 1), proc.stdout):
            name = tup[0].strip()
            if PATTERN in name:
                value = tup[1].strip()
                source_env[name] = value
        return source_env
    else:
        logger.error("File does not exist")
        return {}

This hotfix worked on my Jetson Nano + JetPack 4.5.1. Thanks @issamsaid!

[huajng]

if i get I can't access to jetson_stats.service. Please logout or reboot this board.

and then use sudo jtop it can run for me

[rbonghi]

Lat reply, but I will fix in the next release

[rbonghi]

Is this all fixed with this new release candidate? If you don't read any new error, I will close this issue

sudo -H pip3 install jetson-stats==4.0.0rc3

[rbonghi]

New release 4.0

sudo -H pip install -U jetson-stats

[f3rm4rf3r]

Hello! We are using jtop together with netdata to pull statistics about the temperature/current/voltage, etc... We saw this problem too and it worked when we run sudo jtop. The issues was that the netdata user didn't have access to the jtop socket in /run/jtop.sock. We fixed this by adding the user to the jtop group with:

sudo usermod -a -G jtop netdata

Replace netdata for the user you want to give access to jtop.