Hi Robin,
On 04/07/2016 08:50 PM, Robin Murphy wrote:
Hello,
With 4.6-rc2 (and -rc1) I'm seeing Nouveau blowing up at boot, from the look of it by dereferencing some offset from NULL inside nouveau_fbcon_imageblit(). My setup is an old XFX 7600GT card plugged into an ARM Juno r1 board, which works fine with 4.5 and earlier.
Attached are a couple of logs from booting arm64 defconfig plus DRM and Nouveau enabled - the second also has framebuffer console rotation turned on, which interestingly seems to move the point of failure, and the display does eventually come up to show the tail end of the panic in that case.
I might be able to find time for a full bisection next week if isn't something sufficiently obvious to anyone who knows this driver.
Looking at the log it is not clear to me what could be causing this. I can boot 4.6-rc2 with a GM206 card without any issue. A bisect would indeed be useful here.
Thanks, Alex.