Messages in this thread | | | Subject | Re: PATCH: cdrecord: avoiding scsi device numbering for ide devices | From | Lee Revell <> | Date | Tue, 10 Aug 2004 10:33:13 -0400 |
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On Tue, 2004-08-10 at 04:16, Måns Rullgård wrote: > Albert Cahalan <albert@users.sf.net> writes: > > >> Last time I gave > >> superuser privilege to cdrecord it locked my machine - clearly it wasn't > >> rt_task safe. > > > > So, you've been working on the scheduler anyway... > > An option to reserve some portion of CPU time for > > emergency use (say, 5% after 1 second has passed) > > would let somebody get out of this situation. > > Another option would be an Alt-Sysrq-something that lowered all RT > processes to normal levels.
I hate to derail a good flame-fest, but this would be extremely useful, for more than burning CDs. Anytime you are dealing with a SCHED_FIFO process a bug can lock the machine, this would be useful for hacking jackd for example.
If someone wants to code this up I and the other people on jackit-devel would gladly test it.
Lee
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