diff options
| author | Michal Wajdeczko <[email protected]> | 2018-01-19 12:49:26 +0000 |
|---|---|---|
| committer | Chris Wilson <[email protected]> | 2018-01-19 20:35:32 +0000 |
| commit | bd724318b682587ad2f989ab8e0f7b3d4486ced5 (patch) | |
| tree | cf5aca54fce46489e5c63b0d255abc1b29aa19c3 /tools/perf/scripts/python/intel-pt-events.py | |
| parent | b86aa4458ac6e8be44dfb281b8019fc7822f5538 (diff) | |
drm/i915/guc: Keep GuC log disabled by default
It looks that GuC log functionality is not fully functional yet and
causes issues when enabled by auto(-1) modparam on debug builds.
For example, but not limited to:
[ 30.062893] ======================================================
[ 30.062894] WARNING: possible circular locking dependency detected
[ 30.062895] 4.15.0-rc8-CI-CI_DRM_3648+ #1 Tainted: G U
[ 30.062896] ------------------------------------------------------
[ 30.062897] debugfs_test/1268 is trying to acquire lock:
[ 30.062898] (&dev->struct_mutex){+.+.}, at: [<00000000e4213449>] i915_mutex_lock_interruptible+0x47/0x130 [i915]
[ 30.062921]
but task is already holding lock:
[ 30.062921] (&mm->mmap_sem){++++}, at: [<00000000dd7adc93>] __do_page_fault+0x106/0x560
[ 30.062924]
which lock already depends on the new lock.
References: 0ed87953532652 ("drm/i915/guc: Redefine guc_log_level modparam values")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104693
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104694
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104695
Signed-off-by: Michal Wajdeczko <[email protected]>
Cc: Chris Wilson <[email protected]>
Cc: Jani Saarinen <[email protected]>
Cc: Tomi Sarvela <[email protected]>
Cc: Marta Lofstedt <[email protected]>
Cc: Michal Winiarski <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Michal Winiarski <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/intel-pt-events.py')
0 files changed, 0 insertions, 0 deletions