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DateWed, 10 Jun 1998 16:37:34 +0200 (MET DST)
From"Michael L. Galbraith" <>
SubjectRe: 2.1.105 + SB-16 hard lockup
On Wed, 10 Jun 1998, Alan Cox wrote:

> > SB-16 config is irq 5, dma 1,7 and MPU-401 is at 300.  Non-modular.
> > cat rooster.au > /dev/audio goes cockadoodledoo and freezes hard.
> 
> Ok folks seeing the problem can you leave out the mpu entries and see
> if it then behaves ?
> 

I don't see a way to turn it off for the SB-16.  If I enter 0 for base
address will that do it?  If I enter a blank, it pops to 330 which my
aha-2940 uses. 

I tried to go UGH hunting by adding the following to copy_to/from_user
and get/put_user.  I didn't find any, and the machine still locked 
tight.

I'm wondering if the test might be wrong. WRT the sti()..  I booted my
mirror and prayed fervently that I wouldn't see a zillion UGHs go by :)

{
	unsigned long _flags;
	save_flags(_flags);
	if(!(_flags & (1<<9))) {
		printk("UGH!: <%s,%d>.\n",__FILE__,__LINE__);
		sti();
	}
		....
	restore_flags(_flags);
	return_if_func_has_one;
}
	-Mike


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