From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7B0A7C4453B for ; Wed, 21 Jan 2026 13:54:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 403F610E7F7; Wed, 21 Jan 2026 13:54:07 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=lankhorst.se header.i=@lankhorst.se header.b="HojSNJg5"; dkim-atps=neutral Received: from lankhorst.se (lankhorst.se [141.105.120.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 47B9410E7F6; Wed, 21 Jan 2026 13:54:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lankhorst.se; s=default; t=1769003643; bh=BQuzkKqBZBGO9wE3d6cW/JI4pdjDP8E9SuARGbRWeLQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HojSNJg55D33Tq58tcFdNbKWuz6dvKRLlmfmu7kLV+SLprAd212Lj/7lCyTCinu31 Mzbte7L+KWi23iYDBVnnf9yLLT7KQn9M7AOlDlidmZDKYUqVURJ900Zmal0Kczc5oF P3RCr8lq1N8PIm4u3IEoUmZwyH+twpNeSaFBfpQ2fo2eis+vmU5u0JVpXIJ5gpxQOW rPIXp3vOJq8VHIWe6h8XAnU+2BhOSvNe5W5YvLeEP+7c3LqAFL7I4qeKIZXPcqkxdd oob1JuiKQDjQbUgnlttUikmp9qzAmSxtPGEDB5NK+tVT9qJI0nq5fA0AOttfZpDMzZ c5iu/jqH2/U7g== From: Maarten Lankhorst To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: Maarten Lankhorst Subject: [i915-rt v5 21/21] FOR-CI: drm/i915: Reset lockdep after selftest unload Date: Wed, 21 Jan 2026 14:53:17 +0100 Message-ID: <20260121135318.651622-22-dev@lankhorst.se> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260121135318.651622-1-dev@lankhorst.se> References: <20260121135318.651622-1-dev@lankhorst.se> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" We're hitting a bug in CI where MAX_STACK_TRACE_ENTRIES is set too low. My guess is the repeated loading/unloading is creating multiples of the same entries. As a hack just reset lockdep. This might only be necessary for CI + PREEMPT_RT. Signed-off-by: Maarten Lankhorst --- drivers/gpu/drm/i915/i915_module.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_module.c b/drivers/gpu/drm/i915/i915_module.c index 5d9c35b5a1820..4c135688d9660 100644 --- a/drivers/gpu/drm/i915/i915_module.c +++ b/drivers/gpu/drm/i915/i915_module.c @@ -117,6 +117,12 @@ static void __exit i915_exit(void) if (init_funcs[i].exit) init_funcs[i].exit(); } + + /* Workaround for "MAX_STACK_TRACE_ENTRIES" too low, reset all locks after exit */ +#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) + if (i915_selftest.live || i915_selftest.mock || i915_selftest.perf) + lockdep_reset(); +#endif } module_init(i915_init); -- 2.51.0