Re: [PATCH] vt_buffer: drop console buffer copying optimisations

2015-01-29 Thread Greg Kroah-Hartman
On Thu, Jan 29, 2015 at 03:40:33PM -0800, Linus Torvalds wrote: > On Wed, Jan 28, 2015 at 8:11 PM, Dave Airlie wrote: > > > > Linus, this came up a while back I finally got some confirmation > > that it fixes those servers. > > I'm certainly ok with this. which way should it go in? The users are:

Re: [PATCH] vt_buffer: drop console buffer copying optimisations

2015-01-29 Thread Peter Hurley
On 01/28/2015 11:11 PM, Dave Airlie wrote: > These two copy to/from VGA memory, however on the Silicon > Motion SMI750 VGA card on a 64-bit system cause console corruption. > > This is due to the hw being buggy and not handling a 64-bit transaction > correctly. > > We could try and create a 32-bi

Re: [PATCH] vt_buffer: drop console buffer copying optimisations

2015-01-29 Thread Dave Airlie
On 30 January 2015 at 10:03, Linus Torvalds wrote: > On Thu, Jan 29, 2015 at 3:57 PM, Greg Kroah-Hartman > wrote: >> >> I can take this through the tty tree, but can I put it in linux-next and >> wait for the 3.20 merge window to give people who might notice a >> slow-down a chance to object? > >

Re: [PATCH] vt_buffer: drop console buffer copying optimisations

2015-01-29 Thread Linus Torvalds
On Thu, Jan 29, 2015 at 3:57 PM, Greg Kroah-Hartman wrote: > > I can take this through the tty tree, but can I put it in linux-next and > wait for the 3.20 merge window to give people who might notice a > slow-down a chance to object? Yes. The problem only affects one (or a couple of) truly outra

Re: [PATCH] vt_buffer: drop console buffer copying optimisations

2015-01-29 Thread Linus Torvalds
On Wed, Jan 28, 2015 at 8:11 PM, Dave Airlie wrote: > > Linus, this came up a while back I finally got some confirmation > that it fixes those servers. I'm certainly ok with this. which way should it go in? The users are: - drivers/tty/vt/vt.c (Greg KH, "tty layer") - drivers/video/console/*