From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E42941DE3D6 for ; Tue, 3 Jun 2025 19:09:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748977781; cv=none; b=qRwCWdkJ578BNNpVLeHvoOx6SS5QrN7UviHcO1+1ZqIAwDy9m+kU+9BEcFuXl8rqqW7HtwKBpUzEnZ86HG0xxRQQefEugem8jgL03GPBP8IupPZAcarjCBwTflOt3WShuA0o49mYu+9DZQxqTF2WRXiQaRRzJbggNAuC3GsjEws= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748977781; c=relaxed/simple; bh=REXzQXnsRnk41CgyfOgL8lsm+oDzIEcWZmgE50ptzDg=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=XciS5xs0R5bM2QOwV/dd5zVkb2oW3deFUJgIvNJ+9ho6tm1+Jn8FxmELStz64HTf4pv0YXsva1FbA9Bm9xPKcLKgCFp/40mrr6fd4q1dvxaUJQDz8drtbNUg4/lrLcVR+Us1v7dTkIaI+rz0DxzCFc/fjDeMsO/2loPNfw4eI+c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LBdB8YCN; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LBdB8YCN" Received: by smtp.kernel.org (Postfix) with ESMTPS id 56EBFC4CEF4 for ; Tue, 3 Jun 2025 19:09:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748977780; bh=REXzQXnsRnk41CgyfOgL8lsm+oDzIEcWZmgE50ptzDg=; h=From:To:Subject:Date:In-Reply-To:References:From; b=LBdB8YCN8a1mdwLpbydtkQIhfqM09Lgx6iEHOUTGZ481mj0xO++Fe91DVBQmNCSWI JMGsA72VBu0y8769U79Eomsj2Kjs4tPhNZ8lh8L4Lo3GkN4jjm8qWB7tyVINEQUB2N xn+PAp3RzHOqYZDeAc/XWKdVe62JadvW1K4xRD9rDqFS+9BARh8n12N6iQSUAglRrb aNw0gG/ChSl7Ilb5tow4Lqk0rQXwtJeH4wTToWsEUMEJ910N/8WKIB0ME0f3S3LiS4 qJ82Hvc/e42HyZxzs7mJcwBIDXkXD4Z+2kWF4oxC03gqEAuG2HbtKbqgRobkb2Y1Yw dURYAtnQuIZww== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 4C3EAC41616; Tue, 3 Jun 2025 19:09:40 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 215740] kernel warning: DMA-API: xhci_hcd: cacheline tracking EEXIST, overlapping mappings aren't supported Date: Tue, 03 Jun 2025 19:09:39 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: stern@rowland.harvard.edu X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D215740 --- Comment #44 from Alan Stern (stern@rowland.harvard.edu) --- That seems reasonable. Some people may object, on the grounds that turning on debugging should not affect the way the kernel (memory allocation in particular) behaves -- otherwise what you're debugging isn't the same as what normally happens. B= ut given the way the DMA API debugging is set up, I don't see any alternative. Can somebody test this patch? --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=