[Intel-gfx] bo problem, file-max limit reached within two days

[Daniel Vetter]

On Thu, Apr 12, 2012 at 09:55:11AM +0200, Knut Petersen wrote:
> Am 02.04.2012 10:44, schrieb Chris Wilson:
> >On Mon, 02 Apr 2012 10:36:44 +0200, Knut Petersen<Knut_Petersen at t-online.de>  wrote:
> >>After a few unattended hours Xorg was still running,
> >>but only a terminal window had survived the night :-(
> >>
> >>Xorg: git, a few days old, kernel: 3.3.
> >>
> >>Xorg.0.log: Nothing unusual
> >>
> >>dmesg:
> >>
> >>[156859.078080] [drm:drm_gem_create_mmap_offset] *ERROR* failed to allocate offset for bo 0
> >>[179417.374016] VFS: file-max limit 204863 reached
> >>
> >>I built a new X server and tried kernel 3.2.12 - that does not seem to help as
> >>both the number of open files  and the number of gem objects still grow without
> >>obvious reasons.
> >It's the EFILE that is truly worrying. We have a patch in the queue to
> >help ease the ENOSPC issue, but the EFILE implies a bo reference leak.
> >And that I have not found yet.
> >
> >Happy hunting,
> >-Chris
> >
> 
> Well, it takes more than two days to trigger the EFILE limit here, but yesterday
> the ENOSPC bo problem appeared 6.5 hours after booting the system with current
> Xorg git and kernel 3.3.1. I wonder if this is one problem or if we face two independent bugs.

Can you try the drm-intel-next-queued branch from my git repo at

http://cgit.freedesktop.org/~danvet/drm-intel/

That contains a patch from Chris Wilson to mitigate mmio offset
exhaustion, one possible reason for a -ENOSPC failure.
-Daniel
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48