Re: CD-blanking leads to machine freeze with current -git [was: Re: CD writing in future Linux try #2 [ was: Re: CD writing in future Linux (stirring up a hornets' nest) ]]

Marc Koschewski wrote:
I've been waiting 30 minutes for the machine to come back but no chance. SSH
didn't work either. I thought I could login remote... but uh uh.

The problem is, it's a laptop. So there not much chance to move the cdrom device
over to another controller or whatever. ;)

But let's face it: is it really crappy to render a laptop unusable just because
blanking a CD-RW. The circumstances were: run xcdroast via gksu (thus running as
root), blank CD-RW. Due to cd-burning being totally unusable as a user (problems
here and there if it was just doing anything at all). So I've no other chance
than to run this as root. Couldn't cdrecord 'watch' ide load or - even better -
forcecast it? It knows blanking leads to inresponsiveness sometimes (even more due
to the fact that both devices share the same bus). Why not kind of 'renice'
the process that blanks?

Marc

If that is what is going on, there is nothing linux can do about it; it's a limitation of the hardware. The IDE controller can only accept one command at a time, so if that command takes a while to complete, the other drive on the same channel can not be accessed until the first command completes.

If the system doesn't come back though after sufficient time has gone by for the burn to complete, then this is probably not what is happening. I'd suggest using magic-sysreq to force an unmount and reboot, then see if there's anything in the logs.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

Relevant Pages

  • Re: FC1 Install _appeared_ to work, BUT...
    ... what sort of messages do make it to screen? ... I used to run RHL7.3, dual booting, on a Sony Vaio laptop. ... command prompt only safe-mode in windows but without the GUI). ...
    (Fedora)
  • Re: C: working like a Dog!
    ... Then I try to use the command on the A: ... If it will not do a repair install, ... At that point I would pull the hard disk. ... stays in my laptop drive, the other is a 250GB drive that stay on my ...
    (microsoft.public.windowsxp.help_and_support)
  • Re: Access denied to laptop from main PC?
    ... share on the laptop. ... Command Prompt on the desktop PC, ... on your laptop while logged on as "Kenny Cargill": ... net user "Kenny Cargill" December ...
    (microsoft.public.windowsxp.general)
  • Re: Locking in SQL Server
    ... > By any chance is any of you knows any web site - document from ... SQL Server 2005 will have snapshot isolation where you work in a freezed time. ... >> Say User A issues the following command: ... >> In this case User B goes into Deadlock situation. ...
    (microsoft.public.sqlserver.programming)
  • Re: Im halfway there
    ... prompt for a user name and password. ... an account/password on the laptop does not mean you do ... Set a password for your logon account. ... Type this command: set username ...
    (microsoft.public.win2000.networking)