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 35A0D2374A for ; Fri, 24 Nov 2023 12:02:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ohYPfb1P" Received: by smtp.kernel.org (Postfix) with ESMTPS id 9F9A1C433CC for ; Fri, 24 Nov 2023 12:02:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1700827326; bh=emVDzqg5q4/67zNB2dFd+ngKIViEXXMXZdwEgp+nyTo=; h=From:To:Subject:Date:In-Reply-To:References:From; b=ohYPfb1P+ZCX1h1KmeCRKXmAz9ArG01cx9O4YY1/Q+OeXntZgddgp2CJ5IAiD+Ihw KFB7qyQXklHvSkPl9g2GRlHbbN13vc9fezj0zVt3HVeHxXHaW37Na/LFafO/nrz2DE sJOaZCKXoyyI133ZKEfzvrdJ0b09YbWXVMXdwkU9O25HqU1h64QvLYXjZeUAcXcdYL mWQwFw4OHmw+N9gnQObJaZ0QQMhh7jOtQ9JxZUqOmlVyLaWKMsw3oVU+bSvmZH36dX Mj2iYS4u2jLzsbU2KQGe5qzKoP0vtobMSIWzjgmvvoZLj2lb829ZdRk0Kqa6/c1L7y 8eE4jMEByYcRA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 90256C53BD2; Fri, 24 Nov 2023 12:02:06 +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: Fri, 24 Nov 2023 12:02:06 +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: andy.shevchenko@gmail.com 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 #21 from Andy Shevchenko (andy.shevchenko@gmail.com) --- Looks like read mapping is bigger than 8, I think it might have a cache line alignment requirement. But I have knowledge of USB core code, I believe Alan knows much better what's going on there. Btw, I don't see USB using https://elixir.bootlin.com/linux/v6.7-rc2/C/ident/dma_get_cache_alignment A= PI (except the only DWC2 case). --=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.=