NVIDIA Drivers Ubuntu

Solution to Nvidia + cairo-gl memory problem proposed by Nvidia

Bug #967149 reported by Darxus on 2012-03-28

This bug affects 6 people

	Status	Importance	Assigned to
NVIDIA Drivers Ubuntu	New	Undecided	Unassigned
eglibc	Incomplete	Unknown	auto-www.eglibc.org #23
eglibc (Ubuntu)	Confirmed	Undecided	Unassigned
nvidia-graphics-drivers (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

http://lists.freedesktop.org/archives/wayland-devel/2012-March/002798.html

A small portion of that post from Nvidia:
"Attached is a proof-of-concept patch which fixes this issue for the x86_64 Linux ELF loader. By both applying this patch to the loader and prelinking libnvidia-glcore.so, distros can reduce the memory overhead of linking an application against the NVIDIA libGL to just a few kB:"

This is the same as bug #725434 which has been closed Won't Fix for the Nvidia drivers, figured it would be better to start over here that re-open that?

Tags:

Revision history for this message

Darxus (darxus) wrote on 2012-03-28:

attachment.patch Edit (707 bytes, text/x-diff)

Revision history for this message

Darxus (darxus) wrote on 2012-03-28:

The attached patch is against eglibc.

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Pierre-Loup A. Griffais (1auntzpad-0ut) wrote on 2012-03-28:

The most interesting part of this bug would probably finding a good starting address for the NVIDIA GL libraries on x86, rather than the linker patch.

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-03-29:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in eglibc (Ubuntu):
status:	New → Confirmed
Changed in nvidia-graphics-drivers (Ubuntu):
status:	New → Confirmed

Darxus (darxus) on 2012-04-09

tags:

added: wayland

Revision history for this message

Pierre-Loup A. Griffais (1auntzpad-0ut) wrote on 2013-03-15:

I had filed this bug against glibc to drive the patch in:

http://sourceware.org/bugzilla/show_bug.cgi?id=15097

Note that the next major release from the NVIDIA driver includes a wrapper for most of the external calls, which should suppress the x86-specific relocation problem that I described in my original message to the list.

Note that my comment above didn't mean to imply the loader patch was unnecessary, both steps are needed to achieve optimal results.

Bug Watch Updater (bug-watch-updater) on 2013-03-15