On 18.05.2015 01:46, Ilia Mirkin wrote:> Your errors are most likely due to: > > [ 2.421428] nouveau [ PFB][0000:01:00.0] RAM size: 1975398418 MiB > > I'm guessing you don't *actually* have 1.9PB of VRAM. At least one > other person with a GM108 was seeing a similar issue. You're getting a > bunch of other failed reads, looks like we're somehow not bringing the > card up properly. The most immediate "fix" is to just disable nouveau > entirely -- boot with nouveau.modeset=0. > > Cheers, > > -ilia >As the IGPs "tend" to "steal" system memory: [ 21.733864] nouveau [ PFB][0000:01:00.0] RAM type: stolen system memory [ 21.733883] nouveau [ PFB][0000:01:00.0] RAM size: 256 MiB [ 21.787222] nouveau [ DRM] VRAM: 256 MiB can we reverse the process in this case, and "steal" a few GB of VRAM for a system memory? I mean there are more than enough.
caocoa at mail2tor.com
2015-May-20 07:11 UTC
[Nouveau] Handling GeForce GTX 850M GPU on Arch Linux
Ok thanks, I'll keep to it for now. Would you like me to (try to) fill a bug report report for that? By the way, if you come to work on that bug, I'll be glad to experiment your solution on my machine :) Caocoa> On 18.05.2015 01:46, Ilia Mirkin wrote: >> Your errors are most likely due to: >> >> [ 2.421428] nouveau [ PFB][0000:01:00.0] RAM size: 1975398418 >> MiB >> >> I'm guessing you don't *actually* have 1.9PB of VRAM. At least one >> other person with a GM108 was seeing a similar issue. You're getting a >> bunch of other failed reads, looks like we're somehow not bringing the >> card up properly. The most immediate "fix" is to just disable nouveau >> entirely -- boot with nouveau.modeset=0. >> >> Cheers, >> >> -ilia >> > > > As the IGPs "tend" to "steal" system memory: > > [ 21.733864] nouveau [ PFB][0000:01:00.0] RAM type: stolen system > memory > [ 21.733883] nouveau [ PFB][0000:01:00.0] RAM size: 256 MiB > [ 21.787222] nouveau [ DRM] VRAM: 256 MiB > > can we reverse the process in this case, and "steal" a few GB of VRAM for > a system memory? > I mean there are more than enough. > > >
On 20 May 2015 at 17:11, <caocoa at mail2tor.com> wrote:> Ok thanks, I'll keep to it for now. Would you like me to (try to) fill a > bug report report for that? > By the way, if you come to work on that bug, I'll be glad to experiment > your solution on my machine :)A bug report would be great. Could you also attach a mmiotrace[1] of the NVIDIA binary driver, and another log of nouveau failing with "nouveau.debug=trace log_buf_len=1M" in your kernel boot options. Thanks, Ben. [1] http://nouveau.freedesktop.org/wiki/MmioTrace/> > Caocoa > >> On 18.05.2015 01:46, Ilia Mirkin wrote: >>> Your errors are most likely due to: >>> >>> [ 2.421428] nouveau [ PFB][0000:01:00.0] RAM size: 1975398418 >>> MiB >>> >>> I'm guessing you don't *actually* have 1.9PB of VRAM. At least one >>> other person with a GM108 was seeing a similar issue. You're getting a >>> bunch of other failed reads, looks like we're somehow not bringing the >>> card up properly. The most immediate "fix" is to just disable nouveau >>> entirely -- boot with nouveau.modeset=0. >>> >>> Cheers, >>> >>> -ilia >>> >> >> >> As the IGPs "tend" to "steal" system memory: >> >> [ 21.733864] nouveau [ PFB][0000:01:00.0] RAM type: stolen system >> memory >> [ 21.733883] nouveau [ PFB][0000:01:00.0] RAM size: 256 MiB >> [ 21.787222] nouveau [ DRM] VRAM: 256 MiB >> >> can we reverse the process in this case, and "steal" a few GB of VRAM for >> a system memory? >> I mean there are more than enough. >> >> >> > > > _______________________________________________ > Nouveau mailing list > Nouveau at lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/nouveau