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 32CCC23F271 for ; Fri, 27 Jun 2025 09:17:20 +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=1751015841; cv=none; b=dXjk/yNoJs/Cv7/tTpr+Q+dEzy2AcEkQnyG7JAtr3eht8zHw2OB9Eq6QBWowdpvLhuQ323TD8/aNWbPkbV9Z7g9dquUQTRJIQzZtjq1ntmvDl9UFFlARdTNbEituSEaHzkJYghQrTD1CidnfdVIs8+ghrO8Jz1lewrLgcb+N3xQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751015841; c=relaxed/simple; bh=GmLWioOsEeva71hY724ASnDxN0IAExZQu7DAFkMg0VI=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=dVtRzvokTABjTS6vSEz/GLvJoWWvIt3qyk/MYqymUzkhcCty1o4HU1IphmxbpAjcKuU8zjb+nyJJyOicSMnnO1barAT9ljVWdwx5jPzi9Ov4c/CfADCqYLXl+Z0GLB7RErI3+1YLgLiab9xGn/vWjTvxQ4VNUoPBewW3E/DotHI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BNBuCNuh; 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="BNBuCNuh" Received: by smtp.kernel.org (Postfix) with ESMTPS id B129EC4CEEB for ; Fri, 27 Jun 2025 09:17:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751015840; bh=GmLWioOsEeva71hY724ASnDxN0IAExZQu7DAFkMg0VI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=BNBuCNuhYZ+rtQ3gzKMJsDW9CKQpzvwB5trlLY+pSrN1Yvww/dFBQBVO+107qsfMO /9Gqx/y4NxtaIYnSdAYr3KSMuM68ENSYQYeDHEfClmlrT0/ps21pEK7+BP1c9BQBdS 80+nOy3Gjzw7Gk3mTHdGcsKv3IrkbK+dEVawCcIwNEGaAljfpPBgxzrnkLi/CG/dc3 ei+1IsLI4nTDjI811hkatLSFSWpB+PiNyIRLUUXTHEXmo8muSIWuWun4KoV8ghyuwr LOpggqfKbuKEz90DdWeUsrtbI6lSSsEejSkf+zgCifSTgghVQy1ca9qMqMTIBFSasR nkVXW8YtA/MaQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 9B5A6C433E1; Fri, 27 Jun 2025 09:17:20 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 220272] Latent race condition in USB code unveiled with optimized memset_64.S Date: Fri, 27 Jun 2025 09:17:20 +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: m.seyfarth@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: attachments.created 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=3D220272 --- Comment #8 from Marcus Seyfarth (m.seyfarth@gmail.com) --- Created attachment 308322 --> https://bugzilla.kernel.org/attachment.cgi?id=3D308322&action=3Dedit AI Analysis of memset_64.S and xhci_setup_device in xhci.c Thanks a lot Mathias for willing to take a look. I've provided an edited version of the two Chats with Gemini 2.5 Pro and openAI O3 that guided me so far. My comments are formatted as [** ... **]. I had not much luck using echo 'module xhci_hcd =3Dp' >/sys/kernel/debug/dynamic_debug/control so far= to get any meaningful output. I'll try to get it to work. --=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.=