From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) (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 5A661307ACC for ; Tue, 14 Oct 2025 12:34:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760445294; cv=none; b=XE9INPDpJ4OoOfIc4sD+pnJkTs6DqxTa+nkOQauR37aM/TlpkNgFuEw9jLe+SwuYrn+tDk5cwWGK6UNn02YL6rY4SJba/lKHV1xt6AjibkXi6MClFZbiR7FXSQbKOxlfzNpO1hZfr8FAAlB2ovHyNZ6PICwvyIYsDt42szDWLTM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760445294; c=relaxed/simple; bh=Q7ApbViSbZxT55NIMBJovMrAt1ZiztiCtjjkU0yeZPw=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=euqdM+opkwAA+KepWHSrHu6J6TVbSKJxD3gCO18stffuViS3nz129jY+PO0KRmDVjB7Oq2yB7DXQOsTWBD/PCBuTzHPuFNQN7D9nxDddsGSdoFbHG2Sn+ef+B47JsOVUgIhuFw3Zg0k9YKOIDgswMUVHF+aH/u7ZYDn81+FJgtA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 29F4EC08F4; Tue, 14 Oct 2025 12:34:49 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf10.hostedemail.com (Postfix) with ESMTPA id EB33C40; Tue, 14 Oct 2025 12:34:46 +0000 (UTC) Date: Tue, 14 Oct 2025 08:34:52 -0400 From: Steven Rostedt To: Greg KH Cc: Saravana Kannan , luogengkun@huaweicloud.com, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, runpinglai@google.com, torvalds@linux-foundation.org, wattson-external@google.com, stable@vger.kernel.org Subject: Re: FAILED: patch "[PATCH] tracing: Have trace_marker use per-cpu data to read user" failed to apply to 6.12-stable tree Message-ID: <20251014083452.10235c41@gandalf.local.home> In-Reply-To: <2025101418-buckle-morally-2eb9@gregkh> References: <2025101354-eject-groove-319c@gregkh> <2025101418-buckle-morally-2eb9@gregkh> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: EB33C40 X-Stat-Signature: nqkyn7tkaduzo8m4k836dzk65cthix65 X-Rspamd-Server: rspamout06 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/nfLCN585RQ2LkdZWsMD2YvOiU4mn/GLE= X-HE-Tag: 1760445286-665913 X-HE-Meta: U2FsdGVkX18p0qaHXp00D8LAa8D4UrYTb8S2GWGyWk7ZG718UfwkMr2NtrqZbR2mOeoCy3Ygn98TY4VH6BASX4C1rl8k4Vg94u5hCHkxCIy3iXJRLYIdQ6Wr/YqTzpLoBY0IUF7stb3ESykLHSNTge82qu8FxaD9Q5qd7drZt6rjgeOtrKBmN1upNqVSCEo56giaAJXhbmi4Z52rQq0Ik8hXcFlkhbFXPXeaatCppP/iGmE7j3Vfuic584BredKRePYjNGLBqmdOIpG0poFDfhTZldKZ/+dzC1iV+ulMKj6sZunvhIzvHLnZ9DjBl7h1eRZdzRr1m31/46BpjrYiMT7X2ZEXloxZPRQcSKDi2Zlg6RWzEVOQqtTN4A9q/lSpTAuP2gvEzZ3xt+53i2Zlyi3Bsq2M2Srn On Tue, 14 Oct 2025 07:10:48 +0200 Greg KH wrote: > > > > IIRC, this is a fix for something that went in after 6.12. So, don't > > need to backport it 6.12 or older. > > The "Fixes:" tag references a commit that is in the following releases > already: > 5.10.245 5.15.194 6.1.153 6.6.107 6.12.48 6.16.8 6.17 > so that's what triggered this message. > Correct. The bug has been there "forever", but because it required PREEMPT_NONE to trigger, and most people don't use that, it hasn't been reported. The fix to the PREEMPT_NONE issue had a regression, thus both fixes technically need to go back to the beginning. If I get time, I could work on backporting these patches. -- Steve