Hi,
With drm-nouveau-next branch on top of 3.13-rc2 and a few sound commits
I get following errors in kernel log (repeating much more often).
(once there was a corrupted fbcon with matrix-like strings of
unrecognizable glyph-strings hanging down from screen top border)
These errors do stop once I switch to Xorg.
[ 13.825627] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280
on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT
[ 13.826506] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280
on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT
[ 13.827319] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280
on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT
[ 13.828139] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280
on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT
[ 13.828957] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000400300
on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT
System MBA2,1 with:
00:00.0 Host bridge [0600]: NVIDIA Corporation MCP79 Host Bridge [10de:0a82]
(rev b1)
00:00.1 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller
[10de:0a88] (rev b1)
00:03.0 ISA bridge [0601]: NVIDIA Corporation MCP79 LPC Bridge [10de:0aaf] (rev
b2)
00:03.1 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller
[10de:0aa4] (rev b1)
00:03.2 SMBus [0c05]: NVIDIA Corporation MCP79 SMBus [10de:0aa2] (rev b1)
00:03.3 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller
[10de:0a89] (rev b1)
00:03.4 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller
[10de:0a98] (rev b1)
00:03.5 Co-processor [0b40]: NVIDIA Corporation MCP79 Co-processor [10de:0aa3]
(rev b1)
00:04.0 USB controller [0c03]: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller
[10de:0aa5] (rev b1)
00:04.1 USB controller [0c03]: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller
[10de:0aa6] (rev b1)
00:06.0 USB controller [0c03]: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller
[10de:0aa7] (rev b1)
00:06.1 USB controller [0c03]: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller
[10de:0aa9] (rev b1)
00:08.0 Audio device [0403]: NVIDIA Corporation MCP79 High Definition Audio
[10de:0ac0] (rev b1)
00:09.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Bridge [10de:0aab] (rev
b1)
00:0b.0 SATA controller [0106]: NVIDIA Corporation MCP79 AHCI Controller
[10de:0ab9] (rev b1)
00:10.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge
[10de:0aa0] (rev b1)
00:15.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge
[10de:0ac6] (rev b1)
02:00.0 VGA compatible controller [0300]: NVIDIA Corporation C79 [GeForce 9400M]
[10de:0870] (rev b1)
03:00.0 Network controller [0280]: Broadcom Corporation BCM4321 802.11a/b/g/n
[14e4:4328] (rev 05)
The drm-nouveau-next branch was merged on 2013-12-04 18:34 UTC when most
recent commit was:
Author: Dan Carpenter <dan.carpenter at oracle.com>
Date: Thu Nov 28 01:18:47 2013 +0300
drm/nv50/disp: min/max are reversed in nv50_crtc_gamma_set()
We should be taking the minimum here instead of the max. It could lead
to a buffer overflow.
Fixes: 438d99e3b175 ('drm/nvd0/disp: initial crtc object
implementation')
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
a/drm/nv50_display.c b/drm/nv50_display.c
index f8e66c08b11a..4e384a2f99c3 100644
On Thu, Dec 5, 2013 at 10:17 AM, Bruno Pr?mont <bonbons at linux-vserver.org> wrote:> Hi, > > With drm-nouveau-next branch on top of 3.13-rc2 and a few sound commits > I get following errors in kernel log (repeating much more often). > (once there was a corrupted fbcon with matrix-like strings of > unrecognizable glyph-strings hanging down from screen top border) > > These errors do stop once I switch to Xorg. > > [ 13.825627] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > [ 13.826506] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > [ 13.827319] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > [ 13.828139] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > [ 13.828957] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000400300 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > > System MBA2,1 with: > 02:00.0 VGA compatible controller [0300]: NVIDIA Corporation C79 [GeForce 9400M] [10de:0870] (rev b1)Do you also see these in 3.13-rc2 + http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=drm-nouveau-next&id=a7e4201f0f7d47e03b851f06f8987856e8d33083 ? If not, you can reorder the patches (git rebase -i) and bisect the rest. Basically the GPU is trying to write to some address that is either completely bogus or is stale, and its internal MMU won't let it. -ilia
Hi Ilia, On Thu, 5 Dec 2013 10:55:06 -0500 Ilia Mirkin wrote:> On Thu, Dec 5, 2013 at 10:17 AM, Bruno Pr?mont wrote: > > With drm-nouveau-next branch on top of 3.13-rc2 and a few sound commits > > I get following errors in kernel log (repeating much more often). > > (once there was a corrupted fbcon with matrix-like strings of > > unrecognizable glyph-strings hanging down from screen top border) > > > > These errors do stop once I switch to Xorg. > > > > [ 13.825627] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > > [ 13.826506] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > > [ 13.827319] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > > [ 13.828139] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000408280 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > > [ 13.828957] nouveau E[ PFB][0000:02:00.0] trapped write at 0x0000400300 on channel 0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT > > > > System MBA2,1 with: > > 02:00.0 VGA compatible controller [0300]: NVIDIA Corporation C79 [GeForce 9400M] [10de:0870] (rev b1) > > Do you also see these in 3.13-rc2 + > http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=drm-nouveau-next&id=a7e4201f0f7d47e03b851f06f8987856e8d33083 > ? If not, you can reorder the patches (git rebase -i) and bisect the > rest. Basically the GPU is trying to write to some address that is > either completely bogus or is stale, and its internal MMU won't let > it.If I remember correctly these did not happen with Linus' rc2 but only do happen with drm-nouveau-next on top of it. I will check and bisect though probably will not get time to complete bisect before late Saturday. A display glitch during kernel boot with fbcon might be related to this. (very wild guess based on when the trapped writes happen) The penguin logo shown by fbcon looks like memcopy'ed to a tiled framebuffer without respecting the fact that framebuffer is tiled. Bruno