computer hangs while burning cd

[MikeTbob]

Yeah.. now i realise that my computer freezes for a while even wen i open firefox. dmesg log has no error except the below lines which has repeated several times.
I also experienced this kind of temperory freezing with my frend's pc also. he also has installed ubuntu 9.04. I hope there's no bug in this version.

I have heard more than a few people complaining about this newest release, some even plan on reverting back to a previous release until this mess gets sorted out. Problems with Wifi, Printing and a few other things I'm sure.
Did you see anything useful in /var/log/messages? You can use grep to try and sort it a little bit, because it's a huge file.

cat /var/log/messages |grep error
cat /var/log/messages |grep fail
cat /var/log/messages |grep panic

[lilchakki]

I couldnt find anything much useful except these lines:

May 24 07:55:01 krishna kernel: [47650.986605] compiz.real[3296]: segfault at 28d85e ip 08055c0c sp bfb4c720 error 4 in compiz.real[8048000+34000]

[MikeTbob]

A Compiz error it seems.
I guess you could try shutting off the Desktop effects and see if this helps any.

[lilchakki]

After disabling visual effects for desktop, I couldnt find any change in the performance. My computer still keeps freezing.
Now "cat /var/log/messages |grep error" displays the following errors:

May 24 07:55:01 krishna kernel: [47650.986605] compiz.real[3296]: segfault at 28d85e ip 08055c0c sp bfb4c720 error 4 in compiz.real[8048000+34000]
May 27 07:55:05 krishna kernel: [24976.390710] compiz.real[3583]: segfault at 1f2331 ip 08055c0c sp bf96f9c0 error 4 in compiz.real[8048000+34000]
May 27 23:17:41 krishna kernel: [ 9087.740519] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 27 23:17:43 krishna kernel: [ 9089.814690] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 27 23:17:43 krishna kernel: [ 9090.531217] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 27 23:17:43 krishna kernel: [ 9091.241636] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 27 23:17:43 krishna kernel: [ 9092.060393] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 27 23:17:58 krishna kernel: [ 9110.473471] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 27 23:17:59 krishna kernel: [ 9111.357198] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 27 23:18:00 krishna kernel: [ 9112.049013] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 28 00:26:10 krishna kernel: [13200.838738] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
May 28 00:26:10 krishna kernel: [13201.531300] sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error

I would also like to know if there are any chances of getting affected with viruses. I believe that there are no viruses for linux.

I dont want to reinstall Ubuntu again. I have customized it a lot.. Is there any possibility that i can run Ubuntu without any issue?