Re: 2.6.9: serial_core: uart_open

[Russell King <rmk+lkml@arm.linux.org.uk>]

On Tue, Jul 12, 2005 at 11:36:51AM -0700, karl malbrain wrote:
> The uart_open code loops waiting for CD to be asserted (whenever CLOCAL 
> is not set).  The bottom of the loop contains the following code:
> 
> up(&state->sem);
> schedule();
> down(&state->sem);
> 
> if( signal_pending(current) )
>    break;

This does cause the process to sleep - in an interruptible wait.

Please give more details about the problem you're seeing.  Have you
tried getting a process listing from a different virtual console,
xterm or whatever you normally use?  What does that say?

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core