From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f73.google.com (mail-wr1-f73.google.com [209.85.221.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C1E913FBEBD for ; Tue, 2 Jun 2026 17:12:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780420333; cv=none; b=bx5dpTzJoglIzEO0uc/os6/kcq7QK25+3dRf7sT4rWlDDcw6gnQ+a4f3ZoljKPHdaWVQ5t9qc7JSQ3plRr0Szypqac1TEBQRsEfff54agvHsWeiD15uNTdmktzd0RoYS2uGlCSmE8Lq3IaGZ8hDqQ4Yy/7BxzQ9FXG8JcX3hwQ8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780420333; c=relaxed/simple; bh=hQ6K7pg5mKo+tnf1qeETDb8NdPKxPK7fHARxGpTGbFc=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=D3G0ZFVSpzQRSIOquSXmrEnicvAqRCAsD608t5ii2ZJHUBXn+ozRkWtfaS+3qCUqvJUaalwYPphMl55l2GNjjqn/l1mryA3lNrLRQtvDb9sd2fr36wmP4MVus6ZFda+8bkjNxkx1L+tJHXrAcpmo2ndemqalxc67GDmFRAXyedw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--vdonnefort.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=pnj33wHU; arc=none smtp.client-ip=209.85.221.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--vdonnefort.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="pnj33wHU" Received: by mail-wr1-f73.google.com with SMTP id ffacd0b85a97d-45eef10d5ebso2572837f8f.0 for ; Tue, 02 Jun 2026 10:12:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1780420330; x=1781025130; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=W+WBHOAgBidLIxvIeyt1H7WAaxAGtw1YOgsJYRmOcw8=; b=pnj33wHUFffMsUaZIh0UukuXU5/1MW2A9y3IXXuVylIcQ5q9wRbaWN7T75t4UL1aal gE5fwn46sQJaLzz1x74MOa57kPtXs/+RrTpUPI86iCpDkML2HubWCWVywwQazMHhHzYn lhkBlP5ro/2AV58WaTGnHLIeLRYUd2pEeOAgtAJFhm/ZJBDGDOQCWndobaMxm9xxcmIW q0EHKsVwv77sgMTVlxpytOD3ADr/F7Nq8XdBFEyedOGtGcp4M4FXBwsjwjp621rQZMh6 Agy4xZE1zlUQCcsT3W3vSSuB9uhgKW93vybf+uP5+OontYNQI4i8ROKPrGXNi6ijKxnK GOdg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780420330; x=1781025130; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=W+WBHOAgBidLIxvIeyt1H7WAaxAGtw1YOgsJYRmOcw8=; b=FFM2WnqD1oo5/zUQX6biquIpFjhcgxoYdzAAlP+2PryxLMps3iDNIIPSbjjHt0cEf7 3frKWabr/zTITuHSe+HVEZhDYUaXgR0Tl93XiFICIb4tgnFlNrj+n8Tk4nRZklUfxAr5 k86BfeHkmEhowDYrv1ZvwQXqVLR/dEqfg/XmZxxFb9o1KtWZpuyNvRXSNRQomssLCnLc es5rl021IskxaUw5H2RuwMZ0a83QUAsyKj3b2roDUFwmtAVTFMhhCUXDz9Y59xH0Lq7L aAun3/Nmu5oGPSJ3gGhoxLgMJJtP4N235SO/QMqj6LB7YNzY8m3W7M6lMc4BcjONmmwM +JPA== X-Forwarded-Encrypted: i=1; AFNElJ9VfdKPXm9D2zZZdi05z7wBG6jsV2HEP2FnQQ2CztY7ud9ASfLHpA2GbclJuB7cJXoK/HBjLDdJwBWxzP3LUG4gIaU=@vger.kernel.org X-Gm-Message-State: AOJu0YzYwpG8iLVP4tXllFBT+zVDuJSpD35NQ46B+gTt2/zzf7lmZOQN G7Nb7ZnYqJaWnmCQ0cW6A6NiXwHHQUqEzDzTZuNuhkcRgVtqZ9KvMWRZHxR7Uswowuk9dz/T0fW yCX51D+yMAbkoaKVTpb9tXQ== X-Received: from wrou11.prod.google.com ([2002:adf:ed4b:0:b0:43c:fe6b:f318]) (user=vdonnefort job=prod-delivery.src-stubby-dispatcher) by 2002:a5d:4352:0:b0:460:e00:1213 with SMTP id ffacd0b85a97d-4601f62fb8bmr241409f8f.23.1780420330169; Tue, 02 Jun 2026 10:12:10 -0700 (PDT) Date: Tue, 2 Jun 2026 18:11:42 +0100 In-Reply-To: <20260602171146.2238998-1-vdonnefort@google.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260602171146.2238998-1-vdonnefort@google.com> X-Mailer: git-send-email 2.54.0.1032.g2f8565e1d1-goog Message-ID: <20260602171146.2238998-11-vdonnefort@google.com> Subject: [PATCH 10/13] tracing/remotes: selftests: Add a test for the dump_on_oops tracefs file From: Vincent Donnefort To: rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, linux-trace-kernel@vger.kernel.org Cc: kernel-team@android.com, linux-kernel@vger.kernel.org, Vincent Donnefort Content-Type: text/plain; charset="UTF-8" Exercise the newly introduced dump_on_oops tracefs file that turns on or off the trace remote buffer dump on system panic. Signed-off-by: Vincent Donnefort diff --git a/tools/testing/selftests/ftrace/test.d/remotes/00hypervisor/dump_on_oops.tc b/tools/testing/selftests/ftrace/test.d/remotes/00hypervisor/dump_on_oops.tc new file mode 100644 index 000000000000..6c3f93ab922d --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/remotes/00hypervisor/dump_on_oops.tc @@ -0,0 +1,11 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Test hypervisor trace dump_on_oops +# requires: remotes/hypervisor/write_event + +SOURCE_REMOTE_TEST=1 +. $TEST_DIR/remotes/dump_on_oops.tc + +set -e +setup_remote "hypervisor" +test_dump_on_oops diff --git a/tools/testing/selftests/ftrace/test.d/remotes/dump_on_oops.tc b/tools/testing/selftests/ftrace/test.d/remotes/dump_on_oops.tc new file mode 100644 index 000000000000..4f5f26cb3291 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/remotes/dump_on_oops.tc @@ -0,0 +1,51 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Test trace remote dump_on_oops +# requires: remotes/test + +. $TEST_DIR/remotes/functions + +test_dump_on_oops() +{ + # + # Toggle when the buffer is unloaded + # + echo 1 > dump_on_oops + echo 0 > dump_on_oops + + # + # Toggle when the buffer is loaded + # + echo 1 > tracing_on + assert_loaded + + echo 1 > dump_on_oops + echo 0 > dump_on_oops + + # + # Load and unload buffer while dump_on_oops is enabled + # + echo 0 > tracing_on + assert_unloaded + + echo 1 > dump_on_oops + echo 1 > tracing_on + echo 0 > tracing_on + + # REMOVE ME FOR A PROPER OOPS TEST + return + + echo 1 > tracing_on + + for i in $(seq 1 32); do + echo $i > write_event + done + + echo c > /proc/sysrq-trigger +} + +if [ -z "$SOURCE_REMOTE_TEST" ]; then + set -e + setup_remote_test + test_dump_on_oops +fi diff --git a/tools/testing/selftests/ftrace/test.d/remotes/functions b/tools/testing/selftests/ftrace/test.d/remotes/functions index 8dd9c961977b..887b9296d0a7 100644 --- a/tools/testing/selftests/ftrace/test.d/remotes/functions +++ b/tools/testing/selftests/ftrace/test.d/remotes/functions @@ -9,6 +9,7 @@ setup_remote() cd remotes/$name/ echo 0 > tracing_on echo 0 > printk + echo 0 > dump_on_oops clear_trace echo 7 > buffer_size_kb echo 0 > events/enable -- 2.54.0.1032.g2f8565e1d1-goog