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 EA1AE440C for ; Wed, 26 Mar 2025 08:52:40 +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=1742979162; cv=none; b=DrGbFxgZgDviwyrlOj4J3iluWM7PrzWJvKf6jVB/V6vallwGg5zL5bz1aCX+La8apqHITayW84YPO4H91lR6lhCNUXwiWGtA1MUXkHf3I5G71/+5EiYvIZWhE4FmIJLwutnxy4G8Rk6W9Uc6JiW0dCpXv8MSKYa12lOKcX0qaBk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742979162; c=relaxed/simple; bh=+D1SyzbQt9GPJns5S+w3NNOcEwAT4cn4vnhDRDBgwC8=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=hCkUJOSgoM6n/foRjGBBzY8ci71rY2Uf5Q+njU7fmuYR0bxQsg/HtO8qZsRhhWpL+EIM/1IE8ZEjL/HiZQ7Couw4tcGo6r/+GVnhUvYrv7lpfJd5rJ3SOXlVtRptxktthC3kmPvevLS4KUaRWNskFk9aSbDIdfY5J0D3aq3lk18= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=pUPcxHwf; 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="pUPcxHwf" Received: by smtp.kernel.org (Postfix) with ESMTPS id 7E253C4CEEA for ; Wed, 26 Mar 2025 08:52:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742979160; bh=+D1SyzbQt9GPJns5S+w3NNOcEwAT4cn4vnhDRDBgwC8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=pUPcxHwfrAx3sK3uf0sV3uifejczTezO8595lZF7Gvho3Yo9Q5l2LfgT0WbQzlVlq DcYtE3vX1D0sIC4DpGBytYEUG1q612/dTurpQjspGcfvtsj1JMENKPFyxE/Kx82JcY kRdWjqWNysg5CCmnlGdu5Dqhv6ukRO9qImDge8qgCzW64YvpcSw0inqXHUnt7nMFd1 9bB2cFdynOCqTSUXyHraYW5fo9hYt4G7E3UgGN5us+4/ATZLQVC2wUwTEcT6R1Zs4O 0ZQ0ezQ2nBMvnztwCEp6Lkbsx8mnzG65eMreCwZQkCKke5/zow6gHnMVsafpILVPMM hQ9kkO1BXf1Bg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 6D1BDC41613; Wed, 26 Mar 2025 08:52:40 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 219924] xhci_hcd TRB DMA error and device lockup with AKLOT 2i2 USB audio interface Date: Wed, 26 Mar 2025 08:52:40 +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: michal.pecio@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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=3D219924 Micha=C5=82 Pecio (michal.pecio@gmail.com) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |michal.pecio@gmail.com --- Comment #1 from Micha=C5=82 Pecio (michal.pecio@gmail.com) --- > [Mar25 21:35] usb 3-5: USB disconnect, device number 7 > [ +0.000005] usb 3-5.1: USB disconnect, device number 8 > [ +0.001183] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not > part of current TD ep_index 1 comp_code 1 > [ +0.000006] xhci_hcd 0000:00:14.0: Looking for event-dma 00000000ffa879= 30 > trb-start 00000000ffa87940 trb-end 00000000ffa87940 seg-start > 00000000ffa87000 seg-end 00000000ffa87ff0 > [ +0.000153] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not > part of current TD ep_index 1 comp_code 1 > [ +0.000001] xhci_hcd 0000:00:14.0: Looking for event-dma 00000000ffa879= 40 > trb-start 00000000ffa87950 trb-end 00000000ffa87950 seg-start > 00000000ffa87000 seg-end 00000000ffa87ff0 > [ +0.000119] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not > part of current TD ep_index 1 comp_code 1 > [ +0.000002] xhci_hcd 0000:00:14.0: Looking for event-dma 00000000ffa879= 50 > trb-start 00000000ffa87960 trb-end 00000000ffa87960 seg-start > 00000000ffa87000 seg-end 00000000ffa87ff0 This looks like we get transfer events normally each microframe but for some reason TDs are consistently dropped from the driver's internal list one step too early. Very bizarre. Are you able to test a newer kernel like 6.14 or 6.13.x, or at least the 6.= 12 LTS series? The 6.8 series is frankly no longer supported here, and TBH we can't be sure if it's not a bug unique to Ubuntu 6.8 kernel due to a botched backport of some changes from newer releases. --=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.=