On Wed, Jun 16, 2021 at 10:47:14AM +0200, Christian König wrote:
>
>
> Am 16.06.21 um 10:37 schrieb Dan Carpenter:
> > On Wed, Jun 16, 2021 at 08:46:33AM +0200, Christian König wrote:
> > > Sending the first message didn't worked, so let's try again.
> > >
> > > Am 16.06.21 um 08:30 schrieb Dan Carpenter:
> > > > There are three bugs here:
> > > > 1) We need to call unpopulate() if ttm_tt_populate() succeeds.
> > > > 2) The "new_man = ttm_manager_type(bdev, bo->mem.mem_type);" assignment
> > > > was wrong and it was really assigning "new_mem = old_mem;". There
> > > > is no need for this assignment anyway as we already have the value
> > > > for "new_mem".
> > > > 3) The (!new_man->use_tt) condition is reversed.
> > > >
> > > > Fixes: ba4e7d973dd0 ("drm: Add the TTM GPU memory manager subsystem.")
> > > > Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> > > > ---
> > > > This is from reading the code and I can't swear that I have understood
> > > > it correctly. My nouveau driver is currently unusable and this patch
> > > > has not helped. But hopefully if I fix enough bugs eventually it will
> > > > start to work.
> > > Well NAK, the code previously looked quite well and you are breaking it now.
> > >
> > > What's the problem with nouveau?
> > >
> > The new Firefox seems to excersize nouveau more than the old one so
> > when I start 10 firefox windows it just hangs the graphics.
> >
> > I've added debug code and it seems like the problem is that
> > nv50_mem_new() is failing.
>
> Sounds like it is running out of memory to me.
>
> Do you have a dmesg?
>
At first there was a very straight forward use after free bug which I
fixed.
https://lore.kernel.org/nouveau/YMinJwpIei9n1Pn1@mwanda/T/#u
But now the use after free is gone the only thing in dmesg is:
"[TTM] Buffer eviction failed". And I have some firmware missing.
[ 205.489763] rfkill: input handler disabled
[ 205.678292] nouveau 0000:01:00.0: Direct firmware load for nouveau/nva8_fuc084 failed with error -2
[ 205.678300] nouveau 0000:01:00.0: Direct firmware load for nouveau/nva8_fuc084d failed with error -2
[ 205.678302] nouveau 0000:01:00.0: msvld: unable to load firmware data
[ 205.678304] nouveau 0000:01:00.0: msvld: init failed, -19
[ 296.150632] [TTM] Buffer eviction failed
[ 417.084265] [TTM] Buffer eviction failed
[ 447.295961] [TTM] Buffer eviction failed
[ 510.800231] [TTM] Buffer eviction failed
[ 556.101384] [TTM] Buffer eviction failed
[ 616.495790] [TTM] Buffer eviction failed
[ 692.014007] [TTM] Buffer eviction failed
The eviction failed message only shows up a minute after the hang so it
seems more like a symptom than a root cause.
regards,
dan carpenter
