> -----Original Message----- > From: Peter Chubb [mailto:peter.chubb at nicta.com.au] > Sent: Wednesday, December 11, 2013 5:11 PM > To: Markus Trippelsdorf > Cc: Peter Chubb; Deucher, Alexander; airlied at linux.ie; dri- > devel at lists.freedesktop.org > Subject: Re: Can no longer shutdown after drm/radeon: Implement > radeon_pci_shutdown > > >>>>> "Markus" == Markus Trippelsdorf <markus at trippelsdorf.de> writes: > > Markus> On 2013.12.11 at 11:37 +1100, Peter Chubb wrote: > > Markus> It would be interesting to know where exactly it hangs. Could > Markus> you comment out the *_fini(rdev) calls in > Markus> radeon_driver_unload_kms > (drivers/gpu/drm/radeon/radeon_kms.c) > Markus> one after the other to find out which one is responsible? > > It's radeon_device_fini() that is the problem.
I think the problem is that the drm subsystem tears down the device via drm_driver.unload in drm_dev_unregister(), but now that we have a pci_driver.shutdown callback (which is needed for kexec) that gets called too so the driver gets torn down twice. What exactly happens when you say it's broken? Alex
