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 30734320A22 for ; Fri, 20 Feb 2026 09:28:05 +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=1771579685; cv=none; b=f+dd7T74VpwoMuzBD0CytaMC24J09jDxT5iGexS7Rb1NiCf7r2mUCZIXVtkKB6RljYOVNyeXp4wo+JAZzlhL36NqJBK8ZLxnC4ludNpxF05a0RyAJ9IUn4GSvyoDSwot28ByMx5tajTqO3xO04BHdDzucBGqq83xlaK4EpsrGYU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771579685; c=relaxed/simple; bh=/rDmq7tG0akQRH2SICcpdQIx0pvBz104jDkb3Be5rU8=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=Ri6xPXyxFDLvTmM7P1zaUG1EFVTDMsRG1XhTIspJ2lrWpkcFjv6ksWPr/y/pkomd+U7Jfj7nH3alEe9NoiUPkm/T0SUFO04P3J35g3h40EmCG0GWi3ScI6LDADxTAB5qLdR31Stdbdu2FS+m7ok4lLrRmzt+qa00wRqFHr8mHZM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Sza5gOK4; 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="Sza5gOK4" Received: by smtp.kernel.org (Postfix) with ESMTPS id 128D5C19424 for ; Fri, 20 Feb 2026 09:28:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771579685; bh=/rDmq7tG0akQRH2SICcpdQIx0pvBz104jDkb3Be5rU8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Sza5gOK4r7bKpcKPdjsLl0GJVxm/rwUNFUr0sP0FEdDA+El/L1L6hGZJE8Y8934G/ IS/JvbL8Ju1iISID6PWzCC0EtSHO1GUE/51hpaDZBX102XMQwHS1AbyRmCwdxrj6iH VrgKQgLyxuc3lyCLT5EgU+HwWG1sa3E4+67mCRQ2lJOmkzq7ZNbNAM2pL6EEZPTyM6 97Tx/Jl2y2w2s7lUbtTzxekUyvh/jBJdXiUbOrbSPnzGvz3BOu+Jw69Gb9gvoaVD7l FJ1ey+Dj8HPY9USiKLQRerHF6KQL9ASllxIGqF6rYK7mF6KViz1PTCGvfgTNJkzVKU DbvoHLhqtkOtg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 0B0BEC433E1; Fri, 20 Feb 2026 09:28:05 +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: Fri, 20 Feb 2026 09:28:04 +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: 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 #7 from Micha=C5=82 Pecio (michal.pecio@gmail.com) --- (In reply to Paul Alesius from comment #3) > I just tried with "dmesg -W" (follow mode so it prints messages directly) > and it didn't print anything before the system freeze, and there's nothing > in the logs, reflecting the experience of the others in the ADB bug repor= t. That's a waste of time, if the system locks up completely or panics then yo= ur dmesg will never get a chance to run again and print anything. Neither will Xorg or wayland. This needs a serial cable or netconsole (never tried it myself but AFAIK pe= ople use it for panics too) or DRM_PANIC or something like that. --=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.=