Re: tty, vt: lockdep warnings

On Mon, 5 Nov 2012, Alan Cox wrote:

quoted

The fbdev potential for deadlock may be years old, but the warning
(and consequent disabling of lockdep from that point on - making it
useless to everybody else in need of it) is new, and comes from the
commit below in linux-next.

I revert it in my own testing: if there is no quick fix to the
fbdev issue on the way, Daniel, please revert it from your tree.

If you revert it you swap it for a different deadlock - and one that
happens more often I would expect. Not very useful.

But a deadlock we have lived with for years.  Without reverting,
we're prevented from discovering all the new deadlocks we're adding.

I'm hoping the framebuffer maintainer will bother to respond to this
because that's the only way it can be sorted out.

That would be ideal - thanks.

Hugh