amit_ch at attbi.com
Fri Nov 22 19:04:53 EST 2002
William A. Gatliff wrote:
> On Tue, Nov 12, 2002 at 04:04:39PM +0100, GOTZON ASTONDOA wrote:
> >interrupt to the PowerPC.We have more or less 8 mSeg to close all the
> >system (it has hard disk, ethernet, ftp and our own application).
> > Can somebody tell me any idea to close the Linux system in the
> >fastest way? We are thinking in capture the interrupt signal, but, is it
> >enough fast?
> You could have an interrupt handler watching the signal from the 68k,
> and sending a message via named pipe (perhaps) to a userspace program.
> The userspace program would signal all your other programs, sync(),
> then wait for powerdown.
Another option is mount the main fs as readonly, put in a robust
recovery for any config data fs and use something equivalent of a reboot -f.
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