[PATCH] drm: Try to acquire modeset lock on panic or sysrq

2014-03-26 Thread David Herrmann
Hi On Tue, Mar 25, 2014 at 1:25 PM, Thierry Reding wrote: > From: Thierry Reding > > Commit 62ff94a54921 "drm/crtc-helper: remove LOCKING from kerneldoc" > causes drm_helper_crtc_in_use() and drm_helper_encoder_in_use() to > complain loudly during a kernel panic or sysrq processing. This is > ca

[PATCH] drm: Try to acquire modeset lock on panic or sysrq

2014-03-25 Thread Daniel Vetter
On Tue, Mar 25, 2014 at 01:25:15PM +0100, Thierry Reding wrote: > From: Thierry Reding > > Commit 62ff94a54921 "drm/crtc-helper: remove LOCKING from kerneldoc" > causes drm_helper_crtc_in_use() and drm_helper_encoder_in_use() to > complain loudly during a kernel panic or sysrq processing. This is

[PATCH] drm: Try to acquire modeset lock on panic or sysrq

2014-03-25 Thread Thierry Reding
From: Thierry Reding Commit 62ff94a54921 "drm/crtc-helper: remove LOCKING from kerneldoc" causes drm_helper_crtc_in_use() and drm_helper_encoder_in_use() to complain loudly during a kernel panic or sysrq processing. This is caused by nobody acquiring the modeset lock in these code paths. This pa