TiBook shutoff during file transfer

[Jeffrey Baker]

On Wed, May 29, 2002 at 10:55:52AM -0400, William K. Gibson wrote:
> 
> Here's a weird one.
> 
> When transferring very large files via appletalk from Linux to MOL, my Ti
> Powerbook G4 shuts off. Notice I did not say shuts down, I said shuts off.
> The machine literally powers down early on in the file transfer- as if the
> power supply was suddenly cut.
> 
> Needless to say, I was flabberghasted at this behavior. Thinking originally
> it was some electrical problem, I again tried to transfer a large file, and
> again it shut off in exactly the same way. I can do it every time. Has
> anyone else ever experienced this behavior? I'm stumped.

This can happen if the system spends too long in an interrupt.  It
happened to me (not with MOL, with something else I've forgotten),
and BenH explained to me that the power management unit has to be
serviced periodically, else it will shut the machine down.  So you
must have had some kernel code hogging the machine for too long with
interrupts turned off.  If this only happens in MOL I'd be willing
to suggest the problem could lie in its kernel module.

-jwb