On Thu, Feb 1, 2018 at 12:08 AM, Harry Wentland harry.wentland@amd.com wrote:
On 2018-01-31 09:31 AM, Chris Chiu wrote:
Hi, We are working with new laptops that have the AMD Ravenl Ridge chipset with this `/proc/cpuinfo` https://gist.github.com/mschiu77/b06dba574e89b9a30cf4c450eaec49bc
With the latest kernel 4.15, there're lots of differentpanics/oops during boot so no chance to get into X. It also happens during shutdown. Then I tried to build kernel from git://people.freedesktop.org/~agd5f/linux on branch amd-staging-drm-next with head on commit "drm: Fix trailing semicolon" and update the linux-firmware. Things seem to get better, only 1 oops observed. Here's the oops https://gist.github.com/mschiu77/1a68f27272b24775b2040acdb474cdd3.
Hi Chris,
what are the steps to reproduce this oops?
Does it reproduce all the time or is it intermittent?
Can you send a dmesg with amdgpu.dc_log=1, in addition to drm.debug=0xe?
Thanks, Harry
I did nothing special to reproduce the oops. Boot and sometimes it just shows blank screen but still responds to magic sysrq. So I reboot and take the journal log.
It's intermittent, I ran into it 2 times during 13 reboots. The logs are listed as follows https://gist.github.com/mschiu77/9307d1ca0acd046cc6817f8cad63d79c https://gist.github.com/mschiu77/fa81110f93428721f017cb9fbfd06fbe
One more log here. It enters X OK but after few minutes the display went black and only a mouse cursor left. But the mouse cursor can't even move. So I do a sysrq reboot again. The last error is "" [ 636.312759] endless kernel: [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:41:crtc-0] flip_done timed out [ 646.552344] endless kernel: [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:41:crtc-0] flip_done timed out "" full log here https://gist.github.com/mschiu77/c8696e5fefb17bb1c53598214fb4e382
Only 4 times I can login X, blank screen or hangs w/o responding to magic sysrq for the rest. I took a picture of the only panic although I think it's not about amdgpu. It's here. https://pasteboard.co/H5CUvxk.jpg
Hope they can be helpful.
Chris
However, I still get stuck on the following messages during boot very often "" [ 4.998241] endless kernel: [drm] amdgpu kernel modesetting enabled. [ 4.998288] endless kernel: checking generic (e0000000 7f0000) vs hw (e0000000 10000000) [ 4.998289] endless kernel: fb: switching to amdgpudrmfb from EFI VGA "" I turned on drm.debug=0xe while booting, but no more information at this point. Anything I can do at this point?
And there's 1 more information may be helpful. Sometimes thesystem boots OK with the blank screen, I can't switch to virtual console, but it did respond to the magic sys-rq key. The dmesg with drm.debug=0xe is here https://gist.github.com/mschiu77/291e47b1f07dc52be9461c55c820464c.
I'm pretty sure it's due to the amdgpu driver. Because when I bootwith my own kernel which disables the amdgpu driver, all these symptoms went away. Please suggest anything I can do for this. Thanks
Chris _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx