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Thread: A almost hard lock in Ubuntu 12.04.

  1. #11
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    Re: A almost hard lock in Ubuntu 12.04.

    Quote Originally Posted by analogdialog View Post
    I have Ubuntu 12.04 and use chrome and watch youtube videos, no problems so far (>3 month). Maybe it's an add on ?
    You may want to reinstall chrome.
    I think I am going to try this. If this problem goes away I will post it here. May have to give it awhile to see.
    Thanks
    My hometown on the Mississippi River.
    Using a Asus 3632QM laptop with 8gig RAM, 750gig Hybrid.
    Machine Registered 366271, 366273, 366275.
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  2. #12
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    Re: A almost hard lock in Ubuntu 12.04.

    In my case I started with doing a clean install of 12.04 Alpha 1 and then kept updating/upgrading until the finial release. And btw I never had one issue during that Alpha/beta testing time. This is the first issue that has come up. btw I did a reinstall of the Chrome Browser, and I can't get it to lockup now. Maybe I am on to something, but time will tell.

    Yes I agree that doing an upgrade from an older version does cause problem sometimes. I find it easier to just do a clean install and reinstall all my apps (I keep a list of them in Ubuntuone), and I can be up and running quicker then doing an upgrade,(which take a long time if you have a lot of apps to upgrade).

    Sorry I don't have an answer to your question in your post.
    My hometown on the Mississippi River.
    Using a Asus 3632QM laptop with 8gig RAM, 750gig Hybrid.
    Machine Registered 366271, 366273, 366275.
    Registered Ubuntu user number 18630. Registered Linux user number 458093.

  3. #13
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    Re: A almost hard lock in Ubuntu 12.04.

    Hi

    Is there anything in /var/log/syslog ?

    Kind regards
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

  4. #14
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    Re: A almost hard lock in Ubuntu 12.04.

    Quote Originally Posted by matt_symes View Post
    Hi

    Is there anything in /var/log/syslog ?

    Kind regards
    OK, it just lockup. here is the syslog during the time of the lockup.
    Jul 18 16:00:01 irv-Inspiron-1521 CRON[9857]: (root) CMD (/usr/lib/prey/prey.sh >/var/log/prey.log)
    Jul 18 16:09:01 irv-Inspiron-1521 CRON[10048]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete)
    Jul 18 16:09:01 irv-Inspiron-1521 CRON[10047]: (root) MAIL (mailed 1 byte of output; but got status 0x00ff, #012)
    Jul 18 16:14:13 irv-Inspiron-1521 kernel: [18342.470393] CE: hpet increased min_delta_ns to 30169 nsec
    Jul 18 16:17:01 irv-Inspiron-1521 CRON[10208]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
    Jul 18 16:20:01 irv-Inspiron-1521 CRON[10268]: (root) CMD (/usr/lib/prey/prey.sh >/var/log/prey.log)
    Jul 18 16:35:12 irv-Inspiron-1521 gnome-session[2471]: Gtk-WARNING: Theme file for default has no name#012
    Jul 18 16:35:12 irv-Inspiron-1521 gnome-session[2471]: Gtk-WARNING: Theme file for default has no directories#012
    Jul 18 16:35:59 irv-Inspiron-1521 kernel: imklog 5.8.6, log source = /proc/kmsg started.
    Jul 18 16:35:59 irv-Inspiron-1521 rsyslogd: [origin software="rsyslogd" swVersion="5.8.6" x-pid="617" x-info="http://www.rsyslog.com"] start
    Jul 18 16:35:59 irv-Inspiron-1521 rsyslogd: rsyslogd's groupid changed to 103
    Jul 18 16:35:59 irv-Inspiron-1521 rsyslogd: rsyslogd's userid changed to 101
    Jul 18 16:35:59 irv-Inspiron-1521 mtp-probe: checking bus 3, device 2: "/sys/devices/pci0000:00/0000:00:13.1/usb3/3-2"
    EDIT: OK it lockup again. Look at the change in dates. It happen on the 18th so I Powered it off and turn it back on on the 19th. So the last command has some thing to do with it. This is the last thing it did when it locked: CRON[4916]: (root) CMD (/usr/lib/prey/prey.sh >/var/log/prey.log)
    Jul 18 18:16:15 irv-Inspiron-1521 NetworkManager[961]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
    Jul 18 18:16:15 irv-Inspiron-1521 NetworkManager[961]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...
    Jul 18 18:16:15 irv-Inspiron-1521 NetworkManager[961]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
    Jul 18 18:17:01 irv-Inspiron-1521 CRON[4863]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
    Jul 18 18:20:02 irv-Inspiron-1521 CRON[4916]: (root) CMD (/usr/lib/prey/prey.sh >/var/log/prey.log)
    Jul 19 07:17:40 irv-Inspiron-1521 kernel: imklog 5.8.6, log source = /proc/kmsg started.
    This is what is in the prey.log
    ### PREY 0.5.3 spreads its wings!
    ### Linux irv-Inspiron-1521 3.2.0-26-generic #41-Ubuntu SMP Thu Jun 14 17:49:24 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

    -- Looking for connection...
    -- Got network connection!
    -- Checking URL...
    !! You need to enter your Device Key for querying the Control Panel!
    -- Cleaning up!
    Any idea how to fix this?
    Last edited by irv; July 19th, 2012 at 01:41 PM.
    My hometown on the Mississippi River.
    Using a Asus 3632QM laptop with 8gig RAM, 750gig Hybrid.
    Machine Registered 366271, 366273, 366275.
    Registered Ubuntu user number 18630. Registered Linux user number 458093.

  5. #15
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    Re: A almost hard lock in Ubuntu 12.04.

    Hi

    TBH, I'm not sure what prey is. It may not even be this causing the lock up.

    Maybe looking at the script file would be the way to go.

    Can you post the output of.

    Code:
    cat /usr/lib/prey/prey.sh
    As it is run via cron, stop cron as a service.

    Code:
    sudo service cron stop
    This will stop cron until a reboot and after a reboot you will need to stop cron again. Does it still freeze ?

    Kind regards
    Last edited by matt_symes; July 19th, 2012 at 08:17 PM. Reason: Removed sentence that dd not make any sense :)
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

  6. #16
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    Re: A almost hard lock in Ubuntu 12.04.

    This scrip: prey.sh

    irv@irv-Inspiron-1521:~$ cat /usr/lib/prey/prey.sh
    #!/bin/bash
    ################################################## ##################
    # Prey Client - by Tomas Pollak (bootlog.org)
    # URL: http://preyproject.com
    # License: GPLv3
    ################################################## ##################

    PATH=/bin:/sbin:/usr/bin:/usr/sbin:$PATH
    readonly base_path=`dirname "$0"`
    readonly modules_path='/var/lib/prey/modules'

    ################################################## ##################
    # base files inclusion
    ################################################## ##################

    . "$base_path/version"
    . "/etc/prey/config"
    [ ! -f "lang/$lang" ] && lang='en' # fallback to english in case the lang is missing
    . "$base_path/lang/$lang"
    . "$base_path/core/base"
    . "$base_path/platform/$os/functions"

    # if [ `number_of_instances_of prey.sh` -gt 1 ]; then
    # log ' -- Prey is already running!'
    # exit 1
    # fi

    log "${cyan}$STRING_START ### $(uname -a)${color_end}\n"

    ################################################## ##################
    # lets check if we're actually connected
    # if we're not, lets try to connect to a wifi access point
    ################################################## ##################

    check_net_status
    if [ $connected == 0 ]; then

    if [ "$auto_connect" == "y" ]; then
    log "$STRING_TRY_TO_CONNECT"
    try_to_connect
    fi

    # ok, lets check again, after waiting a bit
    sleep 5
    check_net_status
    if [ $connected == 0 ]; then
    log "$STRING_NO_CONNECT_TO_WIFI"
    if [ -f "$last_response" ]; then # offline actions were enabled
    log ' -- Offline actions enabled!'
    offline_mode=1
    get_last_response
    else
    exit 1
    fi
    fi
    fi

    ################################################## ##################
    # check API key and perform stuff accordingly
    ################################################## ##################

    if [ $connected == 1 ]; then

    log ' -- Got network connection!'

    # we do have an API key but no device key, so let's try to add this device under the account
    if [[ -n "$api_key" && -z "$device_key" ]]; then

    log "\n${bold} >> Registering device under account!${bold_end}\n"
    self_setup

    fi

    fi

    ################################################## ##################
    # verify if installation and keys are correct, if requested
    ################################################## ##################

    if [ -n "$check_mode" ]; then

    log "\n${bold} >> Verifying Prey installation...${bold_end}\n"
    verify_installation

    if [ "$post_method" == "http" ]; then
    log "\n${bold} >> Verifying API and Device keys...${bold_end}\n"
    verify_keys
    elif [ "$post_method" == "email" ]; then
    log "\n${bold} >> Verifying SMTP settings...${bold_end}\n"
    verify_smtp_settings
    fi

    exit $?

    fi

    ################################################## ##################
    # if there's a URL in the config, lets see if it actually exists
    # if it doesn't, the program will shut down gracefully
    ################################################## ##################

    # create tmpdir for downloading stuff, storing files, etc
    create_tmpdir

    if [[ $connected == 1 && -n "$check_url" ]]; then
    log "$STRING_CHECK_URL"

    check_device_status

    process_config
    process_module_config

    log "\n${bold} >> Verifying status...${bold_end}\n"
    log " -- Got status code $response_status!"

    if [ "$response_status" == "$missing_status_code" ]; then

    log "$STRING_PROBLEM"

    ################################################## ##################
    # initialize and fire off active modules
    ################################################## ##################

    set +e # error mode off, just continue if a module fails
    log " -- Running active report modules..."
    run_active_modules # on http mode this will only be report modules

    ################################################## ##################
    # lets send whatever we've gathered
    ################################################## ##################

    log "\n${bold} >> Sending report!${bold_end}\n"
    send_report

    log "\n$STRING_DONE"

    else
    log "$STRING_NO_PROBLEM"
    fi
    fi

    ################################################## ##################
    # if we have any pending actions, run them
    ################################################## ##################

    if [ -n "$offline_mode" ]; then
    process_module_config
    fi

    check_running_actions

    if [ "${#actions[*]}" -gt 0 ]; then
    run_pending_actions & disown -h
    else
    cleanup
    fi

    # if on demand mode was activated, and we're not being by on demand mode itself
    if [[ -z "$on_demand_call" && "$on_demand_mode" == "true" ]]; then
    enable_on_demand_mode
    fi

    # exit 0
    My hometown on the Mississippi River.
    Using a Asus 3632QM laptop with 8gig RAM, 750gig Hybrid.
    Machine Registered 366271, 366273, 366275.
    Registered Ubuntu user number 18630. Registered Linux user number 458093.

  7. #17
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    Re: A almost hard lock in Ubuntu 12.04.

    I ran the
    Code:
    sudo service cron stop
    and stopped the cron and then I tried to get it to lock up. So far I can't get it too.
    I am not sure why cron is running as a service, I don't remember starting it. It must have started after I installed something. I will try to shut it off when I restart and see if this works, and if it does I will stop this service all together.
    My hometown on the Mississippi River.
    Using a Asus 3632QM laptop with 8gig RAM, 750gig Hybrid.
    Machine Registered 366271, 366273, 366275.
    Registered Ubuntu user number 18630. Registered Linux user number 458093.

  8. #18
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    Re: A almost hard lock in Ubuntu 12.04.

    Don't know if this addresses your problem. There seems to be some changes in Youtube in the last few days so that when you watch a Youtube video some script will try to load the html5 player and that somehow freezes Firefox. That affects not just Linux but Firefox in WIndows as well. The temporary work around is to go to http://www.youtube.com/html5/ and check "leave html5 trial". I use the flashvideoreplacer addon for Firefox and always disable html5 on Youtube. I have experienced no problem with this change as long as flash is still installed (if flash is not installed then I think the script will attempt to load the html5 player even if you check the box to opt out, and freezing Firefox as a result, Flashvideoreplacer used to work even without flash installed)

    See this
    http://support.mozilla.org/en-US/questions/932553

    As someone said, there is no problem if you watch Youtube in Chrome. I am sure google would have tested their script in Chrome and made sure that it worked.
    Last edited by bobsan; July 19th, 2012 at 08:05 PM. Reason: add link to mozilla support

  9. #19
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    Re: A almost hard lock in Ubuntu 12.04.

    Hi

    ### PREY 0.5.3 spreads its wings!
    ### Linux irv-Inspiron-1521 3.2.0-26-generic #41-Ubuntu SMP Thu Jun 14 17:49:24 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

    -- Looking for connection...
    -- Got network connection!
    -- Checking URL...
    !! You need to enter your Device Key for querying the Control Panel!
    -- Cleaning up!
    Looks like quite a nifty program.

    You are missing device keys for prey and you need to add them. This may help with that.

    https://groups.google.com/forum/?fro...ty/r4Wer-IXM9U

    I am not sure why cron is running as a service, I don't remember starting it.
    cron is a standard service that runs at start up and is used to run and schedule commands. This is normal and nothing to be worried about.

    I've had a look at the script you posted and it looks alright to me so i would not be worried about disabling the script as opposed to cron so you have a couple of choices now.....

    1. You can either eliminate prey (almost) completely as the cause by disabling it (and re-enabling cron to run its usual tasks) for a period of time and seeing if you get the lockups
    2. You can try to configure prey straight away if you do think that is the cause of the lockups.

    For option 1.

    Code:
    sudo chmod 000 /usr/lib/prey/prey.sh
    Code:
    sudo service cron start
    Wait a period of time and see if you get the lockups.

    If you don't get any then you will need to re-enable prey and configure it. If you do continue to get lockups then the problem is not prey.

    For option 2.

    Configure it correctly.

    I believe you can use

    Code:
    /usr/lib/prey/platform/linux/prey-config.py
    but that link above may shed more light.

    The config files (again from the above link) seem to be these two...

    Code:
    /etc/prey/config
    /usr/share/prey/config
    Post back what you intend to do.

    I am not entirely sure that prey is the problem though and that is why i would, personally, use option 1 first.

    Kind regards
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

  10. #20
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    Re: A almost hard lock in Ubuntu 12.04.

    As an aside, have you tried ways of shutting down your computer other than simply holding the power button?

    For instance, have you tried getting to a terminal by holding down the Alt+Ctrl+F1 keys? If you can get to a terminal, you can:

    • run the "top" command, to see what is burning up cycles or memory, and kill that process through the "sudo killall -9 [whatever_the_process_is]" command, or
    • restart the system by typing "sudo shutdown -r now"


    If you can't get to a terminal, have you tried the "REISUB" method? That had a MUCH lower chance of breaking something than simply killing the computer by holding down the power button.
    Last edited by thatguruguy; July 20th, 2012 at 05:48 PM.

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