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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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