Major problem with Oneiric 11.10 freezing

Tom Bell cbell44 at cfl.rr.com
Tue Feb 14 10:13:42 UTC 2012


On 02/14/2012 04:06 AM, Alvin wrote:
> On 14/02/2012 7:43, Basil Chupin wrote:
>> On 14/02/12 17:03, Tom Bell wrote:
>> [...]
>>
>> 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.)
>
> Tom, can you post the output of 'mount'?
>
> _Links_
> http://en.wikipedia.org/wiki/Journaling_block_device
> http://www.freebsd.org/doc/en/books/arch-handbook/driverbasics-block.html
>
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



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