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 998323A1CE7 for ; Tue, 24 Feb 2026 15:42:40 +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=1771947760; cv=none; b=Ixt281U5QTb5dtTU3207D5LeMIgmdE4CyZs/MHcowYJq3/YiDzlzbADyKmwgKMHr9IHJanvP3HW3F+GjMYMBKp1nVS7RUmMyAAHcQtHz4hN0QxQ05oCLCGB2vbA2Hunoc1dCcm/XOxkUfEvd8BCdcb11i+vgwqNDhx/+8wD+TA8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771947760; c=relaxed/simple; bh=LtBuy3+ILhpd9r3A1YFEiLPyBgB9AL/bN0WxkARZHF4=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=Yk2ItFERi2q+jlhfcUhFD70umA5+De6J5XD69cWbU5UUoh2x9VpoYmLLFphHMovaZE+ZZL/lFvBU+xaSF6HIKfEkbBjZN/WVCqUKaOnPACOAniq2AeLN74BNQrqa45mj5pO/XnnWX9x2HV5+bATuSV0K/qsQEsbBNWKJjPmQI8U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KVFKOZyM; 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="KVFKOZyM" Received: by smtp.kernel.org (Postfix) with ESMTPS id 402A4C116D0 for ; Tue, 24 Feb 2026 15:42:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771947760; bh=LtBuy3+ILhpd9r3A1YFEiLPyBgB9AL/bN0WxkARZHF4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=KVFKOZyMLBYOuKIuGx9Gvg7zRCYY6SsFEHLz7X0oZOU2iSsKfvMrDoG8D6JFdS5tz vqcNeO1X7rbzOZqy9XZokaOy0n27Zut7mv1YASOMPBpVvm5Vf3aHY6B1PR8asa6EdV 7ekbax3MiRu/rMm9MhrJ4lhA4WZXCaftWuw9LJt4KEnlsLp6TuzZow4XU5knPiJZ83 YnPX2nus+pM8LEKbxx0dVMv/kKe1HZDwkCAD1+dvd6hry4j5XQAasDYxQkUo5h4nlk MvYX6EdIxsfwT+xjxpsM4qAcgoQk6BxbEL/LtuFYXKMEu58u5CcxUr+pHLRe1qbVs+ yZI8kUSXskYLQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 3AA1CCAB780; Tue, 24 Feb 2026 15:42:40 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 221103] xhci_hcd: System lockup under CPU load during usbfs polling of USB devices on AMD platforms Date: Tue, 24 Feb 2026 15:42:40 +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: stern@rowland.harvard.edu 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: 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=3D221103 --- Comment #24 from Alan Stern (stern@rowland.harvard.edu) --- In view of comment #17 plus the fact that the entire system freezes, this l= ooks more likely to be a PCI issue rather than a USB problem. A broken USB host controller isn't the sort of thing you expect to take down the whole comput= er, but a broken PCI bus or controller could easily do so. --=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.=