From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Since this drivers creates attributes on the heap, lockdep gets upset and disabled itself. Fix by setting ignore_lockdep flags for problematic attributes. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: x86@xxxxxxxxxx Cc: Michał Winiarski <michal.winiarski@xxxxxxxxx> --- Not saying this is a right fix but lets say I am trying to force the issue. :) --- arch/x86/kernel/cpu/perf_event_intel_pt.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_intel_pt.c b/arch/x86/kernel/cpu/perf_event_intel_pt.c index ffe666c..1cff27b 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_pt.c +++ b/arch/x86/kernel/cpu/perf_event_intel_pt.c @@ -153,9 +153,10 @@ static int __init pt_pmu_hw_init(void) sysfs_attr_init(&de_attrs->attr.attr); - de_attr->attr.attr.mode = S_IRUGO; - de_attr->attr.show = pt_cap_show; - de_attr->var = (void *)i; + de_attr->attr.attr.mode = S_IRUGO; + de_attr->attr.show = pt_cap_show; + de_attr->attr.attr.ignore_lockdep = 1; + de_attr->var = (void *)i; attrs[i] = &de_attr->attr.attr; } -- 2.4.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
