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SubjectRe: 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) ]]
Date
On Feb 10, 2006, at 14:39, Gene Heskett wrote:
> On Friday 10 February 2006 14:19, Phillip Susi wrote:
>> Marc Koschewski wrote:
>>> I just tried blanking a CD-RW with the latest -git tree. The
>>> machine just became unresponsive and then froze. When it became
>>> unresponsive the clock in GNOME still displayed the current time
>>> but I could not focus any windows anymore. Then I had to hard
>>> reboot the machine. The logs say nothing. I repeat: nothing.
>>>
>>> Does anyone have similar problems?
>>
>> Instead of rebooting, just wait for the blanking to finish. My
>> guess is that your burner and hard drive are both on the same ide
>> channel, and so you can not access the disk while the burner is
>> blanking. If this is the case, put each drive on their own ide
>> channel.
>
> It takes hard drive access to switch window focus? Yes, thats a
> question.

Depends on your programs and RAM. If the program you try to switch
to (or, say, part of X or your window manage) is swapped out for some
reason, then yes, changing focus may cause said program to hang until
it can swap the data in. Usually that's a small fraction of a
second, but if your IDE bus is waiting for a burn, then it could be
the duration of the burn.

Cheers,
Kyle Moffett

--
Premature optimization is the root of all evil in programming
-- C.A.R. Hoare



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