Subject: Re: [BUG] hvc_console WARN() on current upstream

From: Benjamin Herrenschmidt <[email-masked]>
Date: Fri, 09 Jan 2009 07:36:12 +1100

On Thu, 2009-01-08 at 11:11 +0000, Alan Cox wrote:
> > > Seems that we are in interrupt, doing hvc_poll, which does
> > > tty_flip_buffer_push
> 
> Which means that someone has tty->low_latency set and is calling
> tty_flip_buffer_push in an IRQ. That has never been allowed or safe, and
> now it hurts ;)

Heh, allright :-) I'll see where that flag is set and clear it when
using IRQs.

> That comment has been there for some years in varying formats

Possibly, I didn't write that code, thanks for pointing me to the
problem.

Cheers,
Ben.