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Message-ID: <21048.15143.580015.875306@pilspetsen.it.uu.se>
Date: Tue, 17 Sep 2013 13:21:11 +0200
From: Mikael Pettersson <mikpe@...uu.se>
To: linux-kernel@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
Subject: [3.12-rc1 regression] X fails to start on Latitude E6510 w/ NOUVEAU DRM driver
Dell Latitude E6510, CONFIG_DRM_NOUVEAU, 64-bit Fedora 17 user-space, Xorg drivers, and
01:00.0 VGA compatible controller: nVidia Corporation GT218 [NVS 3100M] (rev a2).
With 3.11 X starts fine, with 3.12-rc1 it fails with the following in Xorg.0.log:
...
[ 56.819] (II) Loading /usr/lib64/xorg/modules/drivers/nouveau_drv.so
[ 56.842] (II) Module nouveau: vendor="X.Org Foundation"
[ 56.842] compiled for 1.12.2, module version = 0.0.16
[ 56.842] Module class: X.Org Video Driver
[ 56.842] ABI class: X.Org Video Driver, version 12.0
[ 56.842] (II) NOUVEAU driver
[ 56.842] (II) NOUVEAU driver for NVIDIA chipset families :
[ 56.842] RIVA TNT (NV04)
[ 56.842] RIVA TNT2 (NV05)
[ 56.842] GeForce 256 (NV10)
[ 56.842] GeForce 2 (NV11, NV15)
[ 56.842] GeForce 4MX (NV17, NV18)
[ 56.842] GeForce 3 (NV20)
[ 56.842] GeForce 4Ti (NV25, NV28)
[ 56.842] GeForce FX (NV3x)
[ 56.842] GeForce 6 (NV4x)
[ 56.842] GeForce 7 (G7x)
[ 56.842] GeForce 8 (G8x)
[ 56.842] GeForce GTX 200 (NVA0)
[ 56.842] GeForce GTX 400 (NVC0)
[ 56.842] (--) using VT number 7
[ 56.845] drmOpenDevice: node name is /dev/dri/card0
[ 56.845] drmOpenDevice: open result is 9, (OK)
[ 56.845] drmOpenByBusid: Searching for BusID pci:0000:01:00.0
[ 56.845] drmOpenDevice: node name is /dev/dri/card0
[ 56.845] drmOpenDevice: open result is 9, (OK)
[ 56.845] drmOpenByBusid: drmOpenMinor returns 9
[ 56.845] drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
[ 56.845] (EE) [drm] failed to open device
[ 56.845] (EE) No devices detected.
With 3.11 one instead sees:
...
[ 33.879] drmOpenByBusid: drmOpenMinor returns 9
[ 33.879] drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
[ 33.879] (II) [drm] nouveau interface version: 1.1.1
[ 33.879] (II) Loading sub module "dri"
...
There are no messages in the kernel's log that indicate any problem.
stracing xinit shows:
964 open("/dev/dri/card0", O_RDWR) = 9
964 write(0, "[ 1120.365] ", 13) = 13
964 write(0, "drmOpenDevice: open result is 9,"..., 38) = 38
964 write(0, "[ 1120.365] ", 13) = 13
964 write(0, "drmOpenByBusid: drmOpenMinor ret"..., 39) = 39
964 ioctl(9, 0xc0106407, 0x7fffda0d4800) = 0
964 ioctl(9, 0xc0106401, 0x7fffda0d4800) = 0
964 ioctl(9, 0xc0106401, 0x7fffda0d4800) = 0
964 write(0, "[ 1120.365] ", 13) = 13
964 write(0, "drmOpenByBusid: drmGetBusid repo"..., 53) = 53
964 ioctl(9, 0xc0086420, 0x7fffda0d4870) = -1 EINVAL (Invalid argument)
964 fstat(9, {st_dev=makedev(0, 5), st_ino=2348, st_mode=S_IFCHR|0660, st_nlink=1, st_uid=0, st_gid=39, st_blksize=4096, st_blocks=0, st_rdev=makedev(226, 0), st_atime=2013/09/17-11:25:35, st_mtime=2013/09/17-11:25:35, st_ctime=2013/09/17-11:43:58}) = 0
964 fstat(9, {st_dev=makedev(0, 5), st_ino=2348, st_mode=S_IFCHR|0660, st_nlink=1, st_uid=0, st_gid=39, st_blksize=4096, st_blocks=0, st_rdev=makedev(226, 0), st_atime=2013/09/17-11:25:35, st_mtime=2013/09/17-11:25:35, st_ctime=2013/09/17-11:43:58}) = 0
964 close(9) = 0
964 write(0, "[ 1120.366] ", 13) = 13
964 write(0, "(EE) [drm] failed to open device"..., 33) = 33
So it looke like that ioctl 0xc0086420 is the culprit.
Any ideas? I may have time to try a bisection tomorrow.
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