And what is that PID, called jdb2/sda1-8, which is taking up most of the
cpu? It is owned by root. So what is root doing with this jdb2-thingie?
According to Wikipedia, jdb2 is a "generic block device journaling
layer". I suspect it's pretty normal to see a lot of 'jdb2' if there is
a lot of disk I/O. High disk I/O explains speed issues pretty well. It's
also why I asked about LVM with snapshots (and why I switched to FreeBSD
with ZFS when I need snapshots.)
mount
/dev/sda1 on / type ext4 (rw,errors=remount-ro,commit=0)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc
(rw,noexec,nosuid,nodev)
/dev/sdb1 on /media/My Book type vfat
(rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed ,dmask=0077,utf8=1,showexec,uhelper=udisks)
Done.
Thank you!
Tom
--
kubuntu-users mailing list
kubuntu-users@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/kubuntu-users
02-14-2012, 09:27 AM
Tom Bell
Major problem with Oneiric 11.10 freezing
On 02/14/2012 01:43 AM, Basil Chupin wrote:
On 14/02/12 17:03, Tom Bell wrote:
On 02/13/2012 11:02 PM, Basil Chupin wrote:
/* snip */
ext4 is more solid than ext3. Stay with ext4 - it's not your problem.
I go back t what I said before: what are those processes which have
a (-)20 NI?
Each one has a PID so you can go and see what exactly that process
is all about.
In a console/terminal, as root (ie sudo ......) type 'ps aux' which
will list all your running processes owned by everyone on the system.
Get the PID from the lists you produced which are on picpaste then
find them on this list of ps aux and see what they are.
BC
Ummm, a slight correction here :-) .
You will need to regenerate the list(s) on picpaste to see the
latest PID numbers for your currently running system - then use ps
aux and see what they are.
BC
I see.
I did try iotop and did not see a whole lot, but, after looking at
the options for iotop,
I tried "iotop -oa" and got a different picture. See pictures below.
These photos show firefox and jdb2/sda1-8 hogging the cpus big time.
It is not just firefox, although firefox was in this particular example.
Just about all the programs I have run have suffered the same problem.
And it is quite often intermittent.
Thank you!
Something totally not right here.....
To begin, how can you have 2 copies of Firefox running by "tommy"?
From my experience, Firefox will not run for a user if it is already
running for that user - in this case "tommy".
I was a little stunned to see those start up when I clicked once on
FIREFOX!!!
A question: if you had already mentioned it I have forgotten already
:-( but which version of Kubuntu are you running, which version of
KDE, and which version of Firefox?
Here is more than you asked for:
DISTRO info
Distributor ID: Ubuntu
Description: Ubuntu 11.10
Release: 11.10
Codename: oneiric
wlan0 Link encap:Ethernet HWaddr /* snip */
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
RESULTS of MOUNT command:
mount
/dev/sda1 on / type ext4 (rw,errors=remount-ro,commit=0)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc
(rw,noexec,nosuid,nodev)
/dev/sdb1 on /media/My Book type vfat
(rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed ,dmask=0077,utf8=1,showexec,uhelper=udisks)
And what is that PID, called jdb2/sda1-8, which is taking up most of
the cpu? It is owned by root. So what is root doing with this
jdb2-thingie?
BC
See Alvin's following response. I already looked it up myself and it
seems to be something to do
with JFS (Journaling File System), in this case ext4, which you will see
in the equipment list above.
It has me pretty well stumped.
The fact that multiple FIREFOXes ran is also confusing, but shows when
using the 'iotop -oa' command.
I had to run iotop with sudo, just to let you know.
Please keep in mind that this problem is not just with FIREFOX, but just
about every program
that I attempt to run and it happens at different times.
Sometimes I can start a program right away, but have slow downs later on.
Sometimes I click on the program and it never starts
Sometimes I can click on a program, then click on the konsole to open
and the konsole
opens before the program, but it may take awhile to start, or, it could
start right away.
Meanwhile the first program may or may not even show up and sometimes
not for 5-10 minutes.
This problem is v-e-r-y frustrating!!!!!!
Thank you!
Tom
--
kubuntu-users mailing list
kubuntu-users@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/kubuntu-users
02-17-2012, 02:22 AM
Tom Bell
Major problem with Oneiric 11.10 freezing
On 2/13/2012 4:01 AM, Mark Fraser wrote:
>
> On Monday 13 Feb 2012 04:49:43 Tom Bell wrote:
>
> > Most of the time when I start a program, Thunderbird, Firefox, Dolphin,
>
> > etc., it will delay anywhere from 2 to 5 minutes and even then there is
>
> > no guarantee that it will actually start. I have 3 screen captures that
>
> > illustrate the problem and I will upload them to anyone who is
> interested.
>
> > Below is as much information as I could think to send. If anyone wants
>
> > more information, please be specific.
>
>
>
> Do you have any effects running?
>
>
>
> --
>
> Registered Linux User #466407 http://counter.li.org
>
>
>
Today, I replaced the old HD with a new one and everything is back to
normal. The only thing I can figure is that the electronics of the SATA
IDE drive went West(went bad).
The SATA buss is only a buss so I figured that either it was my M/B or
the IDE part of the drive that was defective, so replacing the drive
settled the matter.
Thanks for all your help! Keep this in mind when someone else has a
similar problem!
Tom
--
kubuntu-users mailing list
kubuntu-users@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/kubuntu-users
Major problem with Oneiric 11.10 freezing
