Re: [BUG][2.6.8.1] serial driver hangs SMP kernel, but not the UPkernel

[Paul Fulghum]

On Fri, 2004-10-29 at 15:20, Russell King wrote:
> At a guess, you've enabled "low latency" setting on this port ?

Would it make sense to do something like (in tty_io.c) the following?

void tty_flip_buffer_push(struct tty_struct *tty)
{
	if (tty->low_latency) {
		if (in_interrupt()) {
			printk(KERN_ERR "tty_flip_buffer_push called with low latency from interrupt!\n");
			dump_stack();
			schedule_delayed_work(&tty->flip.work, 1);
		}
		else
			flush_to_ldisc((void *) tty);
	}
	else
		schedule_delayed_work(&tty->flip.work, 1);
}

-- 
Paul Fulghum
paulkf@xxxxxxxxxxxxx


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