On Tue, 14 Sep 2010 20:44:10 +0100
Alan Cox <a...@lxorguk.ukuu.org.uk> wrote:

> > Yes, hvc_push() reschedules.  It doesn't sit in a tight loop burning
> > electrons!
> > 
> > Can we do something safer&smarter here?
> 
> 
> Its a printk handler - better to lose the bytes than hang the box. I
> think the current code is probably right.

Losing the bytes is unacceptable.  Even if an hvc backend erroneously
returns zero on a permanent error, the timeout should prevent hanging
the box for too long.

Though I suspect the right answer for us may be "don't use the hvc
layer".

-Scott

_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev

Reply via email to