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 EC0D334EF09 for ; Mon, 9 Mar 2026 10:31:02 +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=1773052263; cv=none; b=Cw0MuWwo1Ym987OrJ8rpepoxpuykXy5y+nBw+KD3apkdP2Dhy2yVkKOs2po/OoqxV/Co726sUX7PBV06LVU69gcekVrFJ5KIGHW76UPN0IykYc+QxDPCtdMqglg6VuKf6ad8hTRY5IItkOSH9NLCJKdNz5QYaa0kf0RBnSU4ehA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773052263; c=relaxed/simple; bh=tDwWyZJrqAc9CGLVm3aBcFqqW7pGbRTGAnRP4oaZ5fs=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=llcxQpRT0IYJPMLArUoOM3lCu7Bl/oKCSa3GiuItcZHuPpyO11/XqK/129UNu29tD2YU+Dburaq3H4/JrFsg6lNL9d0a+tvR2l/BpSV7gliTwDbMXyVFxH9xof4MkmpbxzbSj9Eh6GcHnUZMvbhsY83ftnMM6Olkm/2jcchXvvk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DpiizBu5; 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="DpiizBu5" Received: by smtp.kernel.org (Postfix) with ESMTPS id 9107EC2BCB1 for ; Mon, 9 Mar 2026 10:31:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773052262; bh=tDwWyZJrqAc9CGLVm3aBcFqqW7pGbRTGAnRP4oaZ5fs=; h=From:To:Subject:Date:In-Reply-To:References:From; b=DpiizBu5vNhocwcV4AhypGhykYkTfvOEG1ndFD31pu7GF9Pefgtm2kxbwvR2nB6Xo tdd02KMsQG3cnNKTqRKaztBWQHDICEfFkFVxZioxbAr9oJKvUt0+HLx+zY0vIb6Dnr 2aB1kr9GvdNQTO1l3HIY882Hlf7lMeguTJCFxoDCIDDoeMXuZG/DQ/nqSAgcOq6yVS fQhMYMobPKtLnsVIhCuN2h+tNAHgRDBgG5vcKJSMYny5psEOTPt3yXnLoBrkNGu82P agXB/fflCs45Ovx3c+tYc9R1VewQ7t7pDQpPJR8W5dSLJbQ+X1bQBDWE69LX0hUN/+ 9+9Y+fUN2cjmQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 89B6AC3279F; Mon, 9 Mar 2026 10:31:02 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 221073] xHCI host controller dies on resume from s2idle on AMD Strix Halo [1022:1587] Date: Mon, 09 Mar 2026 10:31:02 +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: NEEDINFO 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=3D221073 --- Comment #34 from Micha=C5=82 Pecio (michal.pecio@gmail.com) --- Created attachment 309583 --> https://bugzilla.kernel.org/attachment.cgi?id=3D309583&action=3Dedit debug suspend/resume There are some error flags set on DevSta and changes to MSI capabilities of other functions on c4:00 device, but IDK if it means anything. Though it wo= uld be suspicious if those changes only occur during problematic resumes. Mathias suggested that CMD_INTE may be getting cleared inadvertently. I don= 't see how it could happen, but just in case here's patch which logs xHCI registers relevant to interrupts during suspend, resume and on command time= out. It also checks for pending commands on suspend (shouldn't happen, but who knows) and explicitly disables and reenables IRQ generation at xHCI layer. I gave it a quick test and it seems to be OK, but you could also try without those two blocks which manipulate CMD_EIE in xhci->op_regs->command. I also tried removing only the part which enables interrupts on resume and = got a failure similar to yours, as expected. --=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.=