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 9588F38F930 for ; Sat, 27 Jun 2026 08:53:36 +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=1782550416; cv=none; b=iOaJTGbgFjaV7L0sp5+nVnt8WyFEGTr13+zrNE6URReetMnKPXiO4h5WgcgFqzIMRrAp+2lPw+0Ab7ayFopddrwS592VDoP6AMXkO8b1YrP/vh5xN4pIC1Rjz73Ai5It5JJsIVF6zSl/WHL0pJolhH3RQd9g2FVAM/DADSJOPrY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782550416; c=relaxed/simple; bh=szgWyB0YyXpTWQuSpXZykEEquEPheePI6vJnXd9a7b0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=rUHcmBm1k4mx+oom90Lsz9O/XwhyBgxu1Q3FAJfMzIEgRRoiu+XJKjQ8WS6qP8Fm2i49e1/gBZTgUy0XyKcMSRQwjZXw/Von+vbVdOh9GcpzWruYgk9ip4+OZtFan+bnh2q6g+CL37YiO4gZS27vAQpZhbIwgTyJHZ2U711/bJw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LyzTcnul; 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="LyzTcnul" Received: by smtp.kernel.org (Postfix) with ESMTPS id 49552C2BCB3 for ; Sat, 27 Jun 2026 08:53:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1782550416; bh=szgWyB0YyXpTWQuSpXZykEEquEPheePI6vJnXd9a7b0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=LyzTcnulgGWgE13Dcg5T4WKOXtTbadA9Be3+c5WPzkn/pUef80RYQBc4fAg9eceKQ 8a+Xd9EJLKvVwn53p42O4LzMsb6g5GVeQ50m7yFcLSdKgcywJfz5PLnQZXb0cmLMSQ L4KBNYAb6seNdZXUuzSZBDfMPlmbTx3l56mBNheohsF3h3QpZP2zBvSqZbiemEDXRf pmalrU7HC9v2NNi2tdcrD3W7W42ZWkETbtO+8ticeL7dPmiQlUyFMT3HWw2ClS85pm PtKkrzJXaUQt1aLXhL09Vx5jayA9dGwYawZeSE7gjtB+amQHEJQMjEVxOyMTCtsTW3 Db6YSG1LCetWA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 2B85DC3279F; Sat, 27 Jun 2026 08:53:36 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 221694] [regression v7.0->v7.1] AMD Strix Point (Ryzen AI 9 HX 370) intermittently hangs on resume from s2idle Date: Sat, 27 Jun 2026 08:53:36 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Platform_x86 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: hongri.cui@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_platform_x86@kernel-bugs.osdl.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: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D221694 --- Comment #1 from Hongri Cui (hongri.cui@gmail.com) --- Follow-up on 7.1.1 with amd_pmc.dyndbg=3D+p enabled. 1) amd_pmc SMU mailbox trace (good cycles) =E2=80=94 attached: amd_pmc-dynd= bg-7.1.1.txt A clean suspend/resume shows the PMC<->SMU mailbox completing on every mess= age: suspend: AMD_PMC_REGISTER_MESSAGE 7/6/3 -> each AMD_PMC_REGISTER_RESPONS= E:1 (OK) amd_pmc: SMU idlemask s0i3: 0x7fff1afd resume: AMD_PMC_REGISTER_MESSAGE 3/8 -> each AMD_PMC_REGISTER_RESPONS= E:1 (OK) On every cycle that resumes, all PMC->SMU messages get RESPONSE:1. A wedged cycle leaves no trace (journald frozen at suspend entry; box never resumes). 2) amd_pmc unbind test (cf. bug 221664) echo AMDI000A:00 > /sys/bus/platform/drivers/amd_pmc/unbind # then 30x: rtcwake -m mem -s 30 Result: STILL wedges (cycle 14/30, same silent signature). amd_pmc was confirmed out of the path -- zero AMD_PMC_REGISTER_*/SMU traffic after the unbind. So, unlike bug 221664 (where the same unbind made suspend succeed), this wedge is NOT gated by amd_pmc. Caveat: with amd_pmc unbound, /sys/power/suspend_stats/last_hw_sleep stopped updating (stale) -- the platform was no longer entering deep s0i3 (shallow s2idle) -- and it st= ill wedged. That points away from the s0i3 firmware handshake and toward the generic suspend/resume path. Next: I'll run git bisect v7.0..v7.1 (clean A/B anchors: 7.0.13 is 30/30; 7= .1.0 and 7.1.1 both wedge ~10-40%/cycle). Happy to add no_console_suspend + netconsole to captu= re the exact hang point first if that's more useful. Advice on which welcome. Attach /var/log/amd_pmc-dyndbg-7.1.1.txt to the comment. --=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.=