Re: radeon panics kernels

On Thu, Oct 03, 2019 at 03:05:27PM +0200, Hans Petter Selasky wrote:
> On 2019-10-03 14:59, Steve Kargl wrote:
> > On Thu, Oct 03, 2019 at 09:17:32AM +0200, Hans Petter Selasky wrote:
> >> On 2019-10-02 23:19, Steve Kargl wrote:
> >>> troutmask.apl.washington.edu dumped core - see /var/crash/vmcore.7
> >>>
> >>> Wed Oct  2 14:12:38 PDT 2019
> >>>
> >>
> >> This looks like a simple NULL pointer.
> >>
> >> Can you re-compile the drm ports module with debugging symbols and then
> >> reproduce?
> >>
> > 
> > Yes.  Is there a ports knob, ie., 'make -DEBUG' for the
> > drm ports?  Or, do I need to add CFLAGS+=-g to the Makefile?
> > 
> > BTW, this is what I have installed
> > 
> > drm-current-kmod-4.16.g20190927 DRM modules for the linuxkpi-based KMS
> > drm-kmod-g20190710             Metaport of DRM modules
> > gpu-firmware-kmod-g20190825    Firmware modules for the linuxkpi-based KMS
> 
> If you leave the port debug knob for drm-current-kmod AS-IS, I think you 
> can get away with:
> 
> make DEBUG_FLAGS="-g"
> 
> Then re-load the vmcore file in GDB/KGDB from ports (!) and add the 
> symbol files for the modules loaded. Then get the backtrace using bt 
> command.
> 
> BTW: Did you try drm-devel-kmod for 13-current?
> 

No. I let drm-kmod select drm-current-kod.  I can trying
drm-devel-kmodr. I do have an older graphics card, which
required the drm-legacy-kmod port until recently

% pciconf -vl
...
    vendor     = 'Advanced Micro Devices, Inc. [AMD/ATI]'
    device     = 'Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM]'
    class      = display
    subclass   = VGA

-- 
Steve