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 EB7102C235A for ; Wed, 3 Sep 2025 21:13:16 +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=1756933997; cv=none; b=e7ZbB5TG7XV3tufRkrCmm+z8cMbzdz0wuoTrynU5yIHptJFbDoXrRi39cRODM+HdXFAvY3FkDMMqr/CSvQx7feyVcQZa9ZQY67sXKFI/BGRlmZrjZjTBVZAycwigF+6C2FtKHulTxwNSMQ8ykw2EQJhhAUXHV7+9u/qbXGaza9o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756933997; c=relaxed/simple; bh=uJZaBQz9xELvoH9hbGZnge05Xq/MCcY/URbrXXIxGF8=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=c0+epg1qF4WZWhISAzOyTsGCJKSKh/6wpfHR29V7LZQQV4GQxT/QlIZuKEQf6jT1YyNMrLSVn5O6GMRXHCuqlKWryKr0Dh04a6n5uWg/6Wpebwd1ni6bH/eFpPwfxEIdoihlz0GiPUlN/ttFyijLFwRMd/hMxVt425Jz/6K7rEI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qSB84Pp9; 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="qSB84Pp9" Received: by smtp.kernel.org (Postfix) with ESMTPS id BF9A5C4CEF5 for ; Wed, 3 Sep 2025 21:13:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756933996; bh=uJZaBQz9xELvoH9hbGZnge05Xq/MCcY/URbrXXIxGF8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=qSB84Pp9FY2EKgLtbxs+62umHdbJOHD7mDENyD812mEeieiXzCfZLKy2XbiucqK5v tM2t+/T3E70IxDGCsJQy1rnf2GFyYvNSP6RnCzPNxvyainy+7Ng/q4TC7OLVxSMJyn ONTKz2uni99m2m9NC+msBhVcQSC2t7gZjDa2mIiyfz52FynqKHgBaQxNkAr05Ee6aP wsNTDK3va+DxDxoQO6lD40X3bN5hU4r3/ZqPAI5DXBY5uABIzu/1MVmC6m80fFeDwd gsA/6O54ILdo8nOwcb6rVLXGMQvBardRviCThJ8Eourc0OBQGXF6qXiOhsxg2tjRY9 vPWHdtMDbmGMg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id B0F78C433E1; Wed, 3 Sep 2025 21:13:16 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 220491] usb_storage connected SD card disconnects/reconnects on resume from suspend Date: Wed, 03 Sep 2025 21:13:16 +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: paula@alumni.cse.ucsc.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=3D220491 --- Comment #32 from Paul Ausbeck (paula@alumni.cse.ucsc.edu) --- I thought it might be useful to gather data on what an actual physical disconnect looks like during suspend/resume. I've run a test where I physic= ally remove the USB storage device while the machine is suspended and then trigg= er resume. The trace data looks somewhat similar to the software simulated disconnect but without any device communication attempts and without any subsequent reconnect. The attached test data relates to the emb-qm77 MB. --=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.=