Messages in this thread | | | Date | Fri, 30 Jan 2015 10:14:36 +1000 | Subject | Re: [PATCH] vt_buffer: drop console buffer copying optimisations | From | Dave Airlie <> |
| |
On 30 January 2015 at 10:03, Linus Torvalds <torvalds@linux-foundation.org> wrote: > On Thu, Jan 29, 2015 at 3:57 PM, Greg Kroah-Hartman > <gregkh@linuxfoundation.org> 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 outrageously > bad graphics cards that are only used in servers (because they are > such crap that they wouldn't be acceptable anywhere else anyway), and > they have afaik never worked with 64-bit kernels, so it's not even a > regression. > > So it's worth fixing because it's a real - albeit very rare - problem > (especially since the enhanched rep instruction model of memcpy could > easily be *worse* than the 16-bit-at-a-time manual version), but I > wouldn't consider it anywhere near high priority. > Totally not a priority, it just finally got tested for RHEL so I wanted to make sure I posted it upstream before I forgot about it for months,
I also filed: https://bugzilla.kernel.org/show_bug.cgi?id=92311
since the RH bug is private and full of crap, that bug contains a screenshot of the remote console to see what sort of crap it produces.
Dave.
| |