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 8E2DA76026 for ; Mon, 27 Apr 2026 01:07:33 +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=1777252053; cv=none; b=Dc4oEBwJEjhtpY+9kbwIRjusApyQlA01sCCzaub1XjPBjQNpC98moGfmR+LSvsIQRdZ+hNbUjWDrP2oAhD1hpz9Kj39lUioCVjZgznaJv45d5shgE7TgSCxcZy/xbr0eLFT18ii3NtbWN26DPOOdVUcJnMDs96A1UNse43bHXSU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777252053; c=relaxed/simple; bh=gt31j89Ys9Ist/r0+qS4Ol3QFCzTKMbSKrPWDeBRGQg=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=JZswP9yrJ8WGnwb+WeYhWeHKLRKiRMKFRY8LXIygeLnyiwck2IGUvLxcAwlTQC1H5cbia8k2HaqNESS+VN/iqXrk+4Tc3zn+4HenPRuRYUw1297kErRsr9aUzUUDmyFt+mCgrWjLPHOCKPfUIS6nG69eKkWSh2v1/nanN0pxwkM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jrBcctA8; 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="jrBcctA8" Received: by smtp.kernel.org (Postfix) with ESMTPS id 3E23AC2BCAF for ; Mon, 27 Apr 2026 01:07:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777252053; bh=gt31j89Ys9Ist/r0+qS4Ol3QFCzTKMbSKrPWDeBRGQg=; h=From:To:Subject:Date:From; b=jrBcctA8F9cvd+bBt1y+cm9I+b3Vj3u1nTyaODWKyEmMu9oLNDMDa8ET0oEOcYtDM UNSOUd6pRjUexTJEs1U5BDYQ1pUwQOabFZKA32kMyOskv3mBAqJnfTJ5aviOwf2hRe yJGjCP8OJZMWCWZA0vWnznrPRPiEGmX9G6pLpHgaFvkpfcTTaQcz8YTpz/ozCni83T Z3RYZmqQyJMdk/fhIUScBKPeUwl+smY/JsS4QvRR31dbHT0ieKI/RtvzIyjmib3jxY sxZ0yYG/PMgamFkMS96ZGOvIPnR8IDXUWLLApSSCW+Xayd7KbYtudwYt6KtI9n5WuD 4f7nr+MEC9fRw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 2E5D0C3279F; Mon, 27 Apr 2026 01:07:33 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 221422] New: xhci_hcd host controller dies on Intel NUC8i5BEH with USB audio interfaces (POD HD500X, Mbox 2) Date: Mon, 27 Apr 2026 01:07:33 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new 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: hmoller@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: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cf_regression Message-ID: 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=3D221422 Bug ID: 221422 Summary: xhci_hcd host controller dies on Intel NUC8i5BEH with USB audio interfaces (POD HD500X, Mbox 2) Product: Drivers Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: USB Assignee: drivers_usb@kernel-bugs.kernel.org Reporter: hmoller@gmail.com Regression: No Hardware: - Intel NUC8i5BEH (Bean Canyon) - BIOS versions tested: 0092, 0095, 0098 - CPU: Intel i5-8259U Affected USB audio devices: - Line 6 POD HD500X (driver: snd_usb_podhd) - Digidesign Mbox 2 Kernel: - Reproduced on Ubuntu 24.04 kernels 6.8, 6.14, 6.17 - Same Linux kernel works correctly on another machine (ASUS Zenbook 8th gen Intel) with the same USB audio devices Problem: On this NUC, USB audio streaming eventually causes xHCI host controller failure. Sometimes it also happens on device disconnect. Typical sequence: - device enumerates correctly - driver attaches successfully - after some time with active audio, or on disconnect, I get: - timeout: still 16 active urbs.. - xhci_hcd: xHCI host controller not responding - xhci_hcd: HC died; cleaning up - USB disconnect of the audio device Important observation: This is not limited to one interface: - Line 6 POD HD500X - Digidesign Mbox 2 Both interfaces work correctly on another laptop with the same Linux kernel= , so this appears to be platform-specific to the NUC8i5BEH/xHCI implementation. What I already tested: - multiple USB cables - direct connection and hub - USB-A and USB-C ports - multiple kernels (6.8 / 6.14 / 6.17) - BIOS 0092, 0095 and 0098 - intel_iommu=3Doff - processor.max_cstate=3D1 intel_idle.max_cstate=3D1 - different audio buffer settings (larger buffer (64x3) minimice or disapear (64x5) problem) - reproduced both with active audio streaming and on disconnect Expected behavior: Even if the device/stream fails, the xHCI host controller should not die completely. Observed behavior: The host controller dies and all devices on that bus disconnect. To make them work again need to: echo -n "0000:c2:00.4" | sudo tee /sys/bus/pci/drivers/xhci_hcd/unbind echo -n "0000:c2:00.4" | sudo tee /sys/bus/pci/drivers/xhci_hcd/bind Same kernel, same USB audio devices, different hardware: works on ASUS Zenbook i5 8th gen, fails on Intel NUC8i5BEH. This may be a hardware/firmware-specific xHCI issue on the NUC platform rat= her than a generic kernel regression, but I am reporting it here because the ke= rnel might still be able to add a quirk or workaround. $uname -a Linux nuc8i5beh 6.17.0-22-generic #22~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 26 15:25:54 UTC 2 x86_64 x86_64 x86_64 GNU/Linux $ sudo dmidecode -s bios-version BECFL357.86A.0098.2026.0204.1428 $ cat /proc/cmdline BOOT_IMAGE=3D/boot/vmlinuz-6.17.0-22-generic root=3DUUID=3Db116f7d7-5bb8-44d5-a83c-527892de0889 ro quiet splash threadir= qs preempt=3Dfull vt.handoff=3D7 --=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.=