From nobody Fri Oct 3 21:40:12 2025 Received: from out30-113.freemail.mail.aliyun.com (out30-113.freemail.mail.aliyun.com [115.124.30.113]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 851C1393DCC for ; Mon, 25 Aug 2025 03:02:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.113 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756090951; cv=none; b=Fnb/gVzlwon2pdAZkFD6yaz9gQoPP4ioViLba4f1Pawu52xELKssyAkSaFaPOLu2f51CMnq5RPE554rHx7VBvdHIWk67r8RlaLLIYqso7C9iHFR6CMoJWSLV7l76vhaYGQNFVwC/zTctVfdX9MwkQrlaXF4fA+j0GWyQkbv5tCE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756090951; c=relaxed/simple; bh=R6KmWkGVXNO5WRrr5YpP2XcZK6tqzKdp71H2IrZyk6U=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=QFhPFl4Si/OpwiBhGmggH3tfluDQB5I1iLFZJoYoL8z5LPF0z5QfKuzH8Q/Nf3pBxRAA7QoY8YwCCePrcgXh52YcpAjv/OAmCR4Kqr2Ci4qGvHIBpxC3y4LbGIsJZP8caDCaTRl7UlMS7qa82BwrR2plaA1jmcnhhil2jHNcgUA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=QjGdK763; arc=none smtp.client-ip=115.124.30.113 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="QjGdK763" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1756090941; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=tUn2iYdBZOhBQjTOKqXwBVKONJFvUr1wfQQXdvlwzF8=; b=QjGdK7638HtUuh2Hhrt1rvHGTWodfGBJx53dLFjVZ1HIcyeiLO5iZdQe6bhOOg1vdH28xk50j2ht3fQxnn+YFw+fEyx0D40A/njYHWq3tZ/0VQIs0ZWwnvum7aG7EF16HwaclQbdlSQytxQQZmARvFX1Do4jivhz3YerCcUUitY= Received: from localhost(mailfrom:feng.tang@linux.alibaba.com fp:SMTPD_---0WmPuXGx_1756090623 cluster:ay36) by smtp.aliyun-inc.com; Mon, 25 Aug 2025 10:57:04 +0800 From: Feng Tang To: Andrew Morton , Petr Mladek , Steven Rostedt , Lance Yang , Jonathan Corbet , linux-kernel@vger.kernel.org Cc: Askar Safin , paulmck@kernel.org, john.ogness@linutronix.de, Feng Tang Subject: [PATCH v2 2/4] panic: refine the document for 'panic_print' Date: Mon, 25 Aug 2025 10:56:59 +0800 Message-Id: <20250825025701.81921-3-feng.tang@linux.alibaba.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250825025701.81921-1-feng.tang@linux.alibaba.com> References: <20250825025701.81921-1-feng.tang@linux.alibaba.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" User reported current document about SYS_INFO_PANIC_CONSOLE_REPLAY is confusing, that people could expect all user space console messages to be replayed. Specify that only 'kernel' messages will be replayed to solve the confusion. Reported-by: Askar Safin Signed-off-by: Feng Tang Reviewed-by: Petr Mladek --- Documentation/admin-guide/kernel-parameters.txt | 2 +- Documentation/admin-guide/sysctl/kernel.rst | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentatio= n/admin-guide/kernel-parameters.txt index 747a55abf494..86f395f2933b 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4589,7 +4589,7 @@ bit 2: print timer info bit 3: print locks info if CONFIG_LOCKDEP is on bit 4: print ftrace buffer - bit 5: replay all messages on consoles at the end of panic + bit 5: replay all kernel messages on consoles at the end of panic bit 6: print all CPUs backtrace (if available in the arch) bit 7: print only tasks in uninterruptible (blocked) state *Be aware* that this option may print a _lot_ of lines, diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/ad= min-guide/sysctl/kernel.rst index 8b49eab937d0..f3ee807b5d8b 100644 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -890,7 +890,7 @@ bit 1 print system memory info bit 2 print timer info bit 3 print locks info if ``CONFIG_LOCKDEP`` is on bit 4 print ftrace buffer -bit 5 replay all messages on consoles at the end of panic +bit 5 replay all kernel messages on consoles at the end of panic bit 6 print all CPUs backtrace (if available in the arch) bit 7 print only tasks in uninterruptible (blocked) state =3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --=20 2.39.5 (Apple Git-154)