Constructive critisism; room for improvement:

[Jim Cornette]

Andy Pieters wrote:

>Hi all
>
>I thought this thread was dead after the remarks of someone who thinks the 
>meaning of life is to force his opinion about my way of posting...
>
>Still, the cd isn't copy protected. It is, in fact, three years old and has 
>seen more of the carpet then my vacuum cleaner.
>
>That, and the fact that rented dvd's frequently cause the same problem (even 
>worse, soundcard stuck in passthru because xine crashed) only emphasises my 
>original assesment that a bad medium causes real problems with FC.
>
>I have no idea whatsoever as to how the os handles removable media, but it 
>seems that it is not limited to physical media.  For instance, try umounting 
>an nfs share when the server "sharing" is down.
>
>Bad sectors on media are detected and logged, so how about trying to read 
>three times, if it still fails, abandon, unlock the volume, and signal the 
>program that the disk is no longer mounted or is corrupted.
>
>With kind regards
>
>
>Andy
>  
>
I noticed this problem causing extreme slowdowns and also when it sends 
your system off a cliff, no responses at all.

I filed a bug report when there was a kernel version that would cause 
corruption frequently. Several different discs would bomb the system. 
With the next kernel version, I would not have system crashes.

I'm sure that there is work ongoing to correct this error. There is 
probably a lot involved in regards to programs, hardware, the state of 
the processor and the like. You can file a bug report against processes 
that are effected by this severe limitation that not having a clean exit 
from bad media.

Having discussions where knowledgable people know what portions of 
programs, hardware limitations can be undertaken to correct the problem. 
I know from reading posts in response to my comments that discussions 
are not going to go far on this list. The problem is real, but not a 
user list discussion issue.

I think your idea is good in regards to letting the system fail the 
process gracefully and release the hardware in a practical way.

Jim

BTW - The bug I filed is closed. The initial problem does not hamper me 
now. Th effects were a bit upsetting though and should not happen ever 
again. This is probably utopia dream, but one worth having.
Closed report. Not much chasing to do, unless examining the older kernel.
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164868

-- 
Established technology tends to persist in the face of new technology.
		-- G. Blaauw, one of the designers of System 360