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Thread: Help,Ubuntu Crashed

  1. #1
    Join Date
    Sep 2010
    Beans
    4

    Help,Ubuntu Crashed

    Ubuntu Crashed several times for unknow reasons

    Condition:
    when or after operating(copy or move or backup) Large files

    I think it must be kernel crashed, because Ctrl+SysRq+reisub didn't work anymore

    Hardware environment:
    I5 450M + ATI HD5430(with official driver) + 320G ATA TOSHIBA + HM55 chipset

    Software environment:
    Ubuntu X86 X64

    Waiting for kindly advice

    thanks...

  2. #2
    Join Date
    Jan 2008
    Beans
    4,326

    Re: Help,Ubuntu Crashed

    Do a small thing for me:

    Decribe what you are doing at the time of the crash, and things you noticed. Also upload /var/log/syslog here for us to peruse.

    Hopefully we can help!

  3. #3
    Join Date
    Aug 2010
    Location
    Blacksburg
    Beans
    28
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Help,Ubuntu Crashed

    Try booting from the disk. See if you are able to move things there. Then you could wipe your hard drive and attempt to go from there. I would not do that immediately but that is an option.
    Ubuntu 10.04 64-bit
    Hp Pavilion dv5
    Amd TurionX2
    Windows 7

  4. #4
    Join Date
    Dec 2008
    Location
    43° 7' 41" 131° 54' 3"
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Help,Ubuntu Crashed

    I use this for such things.It allows you to watch kernel messages
    A nice trick is to pipe dmesg to tail to watch any message that comes to dmesg. To do this, issue the command dmesg | tail -f and the last few lines of dmesg will remain in your terminal. Every time a new entry arrives it will be at the bottom of the “tail.” Keep this window open when doing heavy duty system administration or debugging a system.
    EasyBCD.
    PrintersDatabase
    Boot Info Script: How to
    The post above and the post below suffer from the Rashomon effect!

  5. #5
    Join Date
    Sep 2010
    Beans
    4

    Re: Help,Ubuntu Crashed

    NightwishFan & tedygram311

    Thank you two kindly guys really

    I'm a newbie for Ubuntu

    since I used Ubuntu last week,I got system crashed many times a day, even during I used live CD bakup

    First time the Ubuntu crashed,I was browsing the web。I drew lesson from this,and after the first time crashed,I didn't do anything during file operating at all, but it still crashed,and I found when I operating large files,it happens 100% and never missed

    The files I operated is about 1G to 3G
    I mounted the / and /home as EXT4

    to NightwishFan:
    Before the last time it crashed I noticed that the 3rd CPU runs in 100% and others only 5%,and 1 second later,it crashed

    to tedygram311:
    I'm very sure that my hard disk is healthy and strong,but I'm not sure what about the drivers
    I won't wipe my hard disk anymore,for I had wiped it at least 10 times.

    I almost lost confidence with my Ubuntu

    I hope you can recognize what I wrote in my bad English
    Thanks again for help

  6. #6
    Join Date
    Sep 2010
    Beans
    4

    Re: Help,Ubuntu Crashed

    Quote Originally Posted by jtarin View Post
    I use this for such things.It allows you to watch kernel messages
    you mean I have to keep this terminal and watch my system break down again?

    my goodness

    It may be the worst idea I've ever heard

    system crash almost drive me crazy。

  7. #7
    Join Date
    Sep 2010
    Beans
    4

    Re: Help,Ubuntu Crashed

    the log is in attachment

    Please help me
    Attached Files Attached Files

  8. #8
    Join Date
    Jan 2008
    Beans
    4,326

    Re: Help,Ubuntu Crashed

    Only parts of the log I saw that may have been an issue were:
    Code:
    Sep 28 06:33:42 bigchan-laptop kernel: imklog 4.2.0, log source = /proc/kmsg started.
    Sep 28 06:33:42 bigchan-laptop rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="4016" x-info="http://www.rsyslog.com"] (re)start
    Sep 28 06:33:42 bigchan-laptop rsyslogd: rsyslogd's groupid changed to 103
    Sep 28 06:33:42 bigchan-laptop rsyslogd: rsyslogd's userid changed to 101
    Sep 28 06:33:42 bigchan-laptop rsyslogd-2039: Could no open output file '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
    Sep 28 06:33:42 bigchan-laptop acpid: 38 rules loaded
    Sep 28 06:33:42 bigchan-laptop acpid: waiting for events: event logging is off
    Sep 28 06:33:42 bigchan-laptop kernel: [  805.489070] type=1505 audit(1285626822.951:18):  operation="profile_replace" pid=4020 name="/usr/sbin/mysqld"
    Sep 28 06:33:43 bigchan-laptop init: udev main process (3803) killed by KILL signal
    Sep 28 06:33:43 bigchan-laptop init: udev main process ended, respawning
    Sep 28 06:33:43 bigchan-laptop init: dbus main process (3869) killed by KILL signal
    Sep 28 06:33:43 bigchan-laptop init: dbus main process ended, respawning
    Sep 28 06:33:43 bigchan-laptop init: Disconnected from system bus
    Sep 28 06:33:43 bigchan-laptop init: dbus main process (4038) terminated with status 1
    Sep 28 06:33:43 bigchan-laptop init: dbus main process ended, respawning
    Sep 28 06:33:43 bigchan-laptop init: Unable to connect to the system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused
    Sep 28 06:33:43 bigchan-laptop kernel: [  805.565872] udev: starting version 151
    Sep 28 06:33:43 bigchan-laptop /etc/mysql/debian-start[4049]: Upgrading MySQL tables if necessary.
    Sep 28 06:33:43 bigchan-laptop kernel: [  806.507339] SysRq : Emergency Sync
    Sep 28 06:33:43 bigchan-laptop kernel: [  806.517628] Emergency Sync complete
    Sep 28 06:33:44 bigchan-laptop /etc/mysql/debian-start[4052]: /usr/bin/mysql_upgrade: the '--basedir' option is always ignored
    Sep 28 06:33:44 bigchan-laptop /etc/mysql/debian-start[4052]: Looking for 'mysql' as: /usr/bin/mysql
    Sep 28 06:33:44 bigchan-laptop /etc/mysql/debian-start[4052]: Looking for 'mysqlcheck' as: /usr/bin/mysqlcheck
    Sep 28 06:33:44 bigchan-laptop /etc/mysql/debian-start[4052]: This installation of MySQL is already upgraded to 5.1.41, use --force if you still need to run mysql_upgrade
    Sep 28 06:33:44 bigchan-laptop /etc/mysql/debian-start[4059]: Checking for insecure root accounts.
    Sep 28 06:33:44 bigchan-laptop /etc/mysql/debian-start[4063]: Triggering myisam-recover for all MyISAM tables
    Sep 28 06:33:45 bigchan-laptop kernel: [  807.617602] SysRq : Emergency Remount R/O
    I cant make heads or tail of it. >_>

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