Comment 61 for bug 1243557

Hi, sorry for barging in but I'm also hitting this on the same graphics card (NVS 4200M) on a Dell Latitude E6520 running Arch Linux.
I'm trying to use PRIME for a VA-API + VDPAU setup and also for some games but as soon as I start I get this message in dmesg :
kernel: nouveau E[ PFIFO][0000:01:00.0] INTR 0x00800000
kernel: nouveau W[ PFIFO][0000:01:00.0] INTR 0x01000000: 0x00000005
I'm running the 3.15.6-1-ARCH kernel with the following packages:
intel-dri-git 10.3.0_devel.64000-1
lib32-intel-dri-git 10.3.0_devel.64007-1
lib32-mesa-git 10.3.0_devel.64007-1
lib32-mesa-libgl-git 10.3.0_devel.64007-1
lib32-nouveau-dri-git 10.3.0_devel.64007-1
lib32-opencl-mesa-git 10.3.0_devel.64007-1
lib32-svga-dri-git 10.3.0_devel.64007-1
libdrm-git 2.4.54.19.gc0b34dc-1
mesa-git 10.3.0_devel.64000-1
mesa-libgl-git 10.3.0_devel.64000-1
nouveau-dri-git 10.3.0_devel.64000-1
opencl-mesa-git 10.3.0_devel.64000-1
xf86-video-nouveau-git 1.0.10.34.gedd1608-1
If I stop the application the uses the NVIDIA card as soon as I see the message, everything is OK. But if I continue, X freezes and the only way I can regain control is by a cold reboot.