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 E986B26FD81; Fri, 28 Feb 2025 14:35:52 +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=1740753354; cv=none; b=F9AuDWKCrMb6JFRDs5FKlA1HrjlDqRRc0DVOOkeU8jfvk4qcihoVAPIz5ndesRvw3Pj0i2oP9xMoWwPR9tDGd+p7hG+s6SMk3qx4MEJwXwcB8v2WPT+oeMDrF9Aw0kvloUQM/+5sILa2UhPICD1HW62eOF1g0GUdTLh4NEZBWTo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740753354; c=relaxed/simple; bh=w65gw6pcvn4/IhADuzAEL+BMY22nnW1RgyNEgJj8uoc=; h=Message-ID:Date:MIME-Version:To:From:Subject:Cc:Content-Type; b=olZDVrRtGkG4/a9unPTHh64rjKL3q1ncBiXIFulxx5e06UjEwgDpDRG2eLw7o1XUxZZmDHD09jIPFaR2n/XFArVd+mQds9yPPqGmgWCUkhAzFBHF1lOHfAV6yoUI34LhshZYs9s6LH+KUYjVfVo6IkfyxSMHMbMQLg1YxS2J2kQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Gw0wMCyY; 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="Gw0wMCyY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58990C4CED6; Fri, 28 Feb 2025 14:35:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740753352; bh=w65gw6pcvn4/IhADuzAEL+BMY22nnW1RgyNEgJj8uoc=; h=Date:To:From:Subject:Cc:From; b=Gw0wMCyYVC8+hSmdc6N8qzDOvQew99S7FsW3OSpycOffsvcKtKFwGwn+LPItQlIsz TGjN2vC1fgYtSSOwSUf52s9QzCT53rWZNT8JJK4I5c3yGQNztpArRE9hwrIJri268u JIM0bHImGQHWK21KEO+0ySC02REZTUU9eJzBdq9EHlv1Tg9il/zGVFY+BrAIgKvxOT chaMR07cIGvlPAKwPjIo8uKjPbpDmC56GGeSJftbG+ecn1PwmYPzV/jHd/ow3h6Nvy keBtv1oVERvPJ3zehHmf+fFRmRpIXtikaf1jYIitLyqVL5RD/DV7o4tFkra0W0nIvs Wt6LKNAt3ySuw== Message-ID: <45ddbb23-bf92-4d46-84b6-6c80886d4278@kernel.org> Date: Fri, 28 Feb 2025 15:35:48 +0100 Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: Basavaraj Natikar From: Jesper Dangaard Brouer Subject: Kernel module ae4dma caused my system to not boot Cc: Vinod Koul , dmaengine@vger.kernel.org, LKML , kernel-team Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Basavaraj, When rebasing my devel kernel to v6.14 (6.14.0-rc3-traits-009-bench+), my AMD testlab system didn't boot due to the kernel module: ae4dma. I disabled the kernel module via CONFIG_AMD_AE4DMA so I can boot my system again. CPU: AMD EPYC 9684X 96-Core Processor As a help for you to debug here are the kernel console messages that seems relevant: [ 13.853689] ae4dma 0000:85:00.1: enabling device (0000 -> 0002) [ 13.861287] genirq: Flags mismatch irq 0. 00000000 (0000:85:00.1) vs. 00215a00 (timer) [ 13.870123] CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.14.0-rc3-traits-009-bench+ #32 [ 13.870125] Hardware name: Lenovo HR355M-V3-G12/HR355M_V3_HPM, BIOS HR355M_V3.G.026 10/13/2023 [ 13.870126] Workqueue: events work_for_cpu_fn [ 13.870132] Call Trace: [ 13.870134] [ 13.870136] dump_stack_lvl+0x64/0x80 [ 13.870141] __setup_irq+0x522/0x6d0 [ 13.870145] request_threaded_irq+0x10d/0x180 [ 13.870146] devm_request_threaded_irq+0x71/0xd0 [ 13.870149] ? __pfx_ae4_core_irq_handler+0x10/0x10 [ae4dma] [ 13.870153] ae4_core_init+0x8f/0x2f0 [ae4dma] [ 13.870155] ae4_pci_probe+0x1f3/0x270 [ae4dma] [ 13.870156] local_pci_probe+0x42/0xa0 [ 13.870161] work_for_cpu_fn+0x17/0x30 [ 13.870162] process_one_work+0x181/0x3a0 [ 13.870165] worker_thread+0x251/0x360 [ 13.870166] ? __pfx_worker_thread+0x10/0x10 [ 13.870168] kthread+0xee/0x240 [ 13.870170] ? finish_task_switch.isra.0+0x88/0x2d0 [ 13.870173] ? __pfx_kthread+0x10/0x10 [ 13.870174] ret_from_fork+0x31/0x50 [ 13.870177] ? __pfx_kthread+0x10/0x10 [ 13.870178] ret_from_fork_asm+0x1a/0x30 [ 13.870182] [ 14.010326] ccp 0000:03:00.5: SEV firmware updated from 1.55.32 to 1.55.37 [ 16.565527] ae4dma 0000:85:00.1: probe with driver ae4dma failed with error -16 [ 16.574958] ae4dma 0000:c1:00.1: enabling device (0000 -> 0002) Let me know if you need other data, --Jesper