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 CF66F39DBED; Mon, 4 May 2026 13:42:45 +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=1777902165; cv=none; b=OteL7U5mLw0xBNU5LxlyX386Jprbg9hm2eNs+0pAYj1FJOOJ5+ZRmU35TEkR6JnkStCeIg+J6y4PxsXKbyiBqWzZDwWX2A7UziDXcEAPeaj/Uo+dEPC3BV/VxFVbN8JLPqigLh28cKd0TRYL7fIveh0OTfEcGpe8Jtmu0RzGxL4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777902165; c=relaxed/simple; bh=8tSxUuDeUyvAzyJEtbx33GrMXbNrQ8yGPFNRsdz/Gs8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=F3DYUDnjtWG7pWSiIkrQQPoX6faGs721Xf1sjZLPEZKleZy7eeiLCcfdn/0P6EXd06sJlTrMrLZKDXveq+W6WtHbXRelJTz1KkZb+QFeNX3R+2D9SApJxvcIx2St9i1sEZHh7+jLGjadFaDCNwlL+shUi3gUC6u8hiNumLQnQm8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Zrh5lzVf; 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="Zrh5lzVf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 59ADDC2BCB8; Mon, 4 May 2026 13:42:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777902165; bh=8tSxUuDeUyvAzyJEtbx33GrMXbNrQ8yGPFNRsdz/Gs8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Zrh5lzVfDhZEsk2qhy4yS5mwhpiYAWQXd41K5Z+bqFwH7Uzmef/Z8XTg/NHKKI0hD TVmdh+yKwg03VNygJ9vobHiCUrYkun7ThShNwwaEs1ATuiAw1F9ggDcNryy26TvPzQ gA5T2CYQE43C+HM2mzetxkuUprqZdZOHII6qR2Y0EUKQJ++T5+knqWzFmwmfMFMkEM VGuzKVCJWuVeo/lbTpKJnLxDV4pz7WDIKI4V1etF4iKaKUBqb+MH+OKHRwvJ8QDfid hQf9kmW4NYN5sJ5qqXcFu8044fZxP1wIuC5rXJ8H1dFkRJ+bif39CBxKiyOs78C8T/ DYlhXoJuklPpA== Date: Mon, 4 May 2026 16:42:41 +0300 From: Jarkko Sakkinen To: Stefan Wahren Cc: Peter Huewe , Jason Gunthorpe , linux-arm-kernel@lists.infradead.org, linux-integrity@vger.kernel.org, kernel@pengutronix.de, Frank Li , Sascha Hauer , "imx@lists.linux.dev" Subject: Re: tpm: spi: do not call blocking ops when !TASK_RUNNING; during shutdown Message-ID: References: Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Hi Stefan, On Mon, Apr 20, 2026 at 12:25:21PM +0200, Stefan Wahren wrote: > Hi, > we use a custom i.MX93 board, which based on Phytec Phycore i.MX93 with a > TPM connected via SPI. If I enable CONFIG_DEBUG_ATOMIC_SLEEP=y in our kernel > config with mainline kernel 6.18.23 and reboot our board, I will get the > following warning: Please provide results with the latest mainline kernel. > > [   43.287416] do not call blocking ops when !TASK_RUNNING; state=1 set at > [<000000005a2107f3>] prepare_to_wait_event+0x54/0x14c > [   43.299009] WARNING: CPU: 0 PID: 1 at kernel/sched/core.c:8857 > __might_sleep+0x74/0x7c > [   43.306920] Modules linked in: polyval_ce flexcan rtc_rv3028 can_dev > mse102x phy_can_transceiver fuse autofs4 > [   43.316838] CPU: 0 UID: 0 PID: 1 Comm: systemd-shutdow Not tainted > 6.18.23-00002-g626a194342f0 #2 PREEMPT > [   43.326471] Hardware name: chargebyte Charge SOM Evaluation Kit (DT) > [   43.332807] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS > BTYPE=--) > [   43.339757] pc : __might_sleep+0x74/0x7c > [   43.343675] lr : __might_sleep+0x74/0x7c > [   43.347592] sp : ffff800081aab720 > [   43.350894] x29: ffff800081aab720 x28: 0000000000000080 x27: > ffff000000235880 > [   43.358018] x26: ffff800081897000 x25: 0000000000000018 x24: > 0000000000000000 > [   43.365142] x23: ffff800081aab907 x22: 0000000000000000 x21: > 0000000000000080 > [   43.372266] x20: 000000000000010f x19: ffff80008131cd00 x18: > 0000000000000001 > [   43.379390] x17: 0000000000000000 x16: 000000000017d600 x15: > ffff00003fda4680 > [   43.386514] x14: 0000000000017e01 x13: 0000000000000209 x12: > 0000000000000000 > [   43.393638] x11: 00000000000000c0 x10: 0000000000000950 x9 : > ffff800081aab5a0 > [   43.400762] x8 : ffff0000000d89b0 x7 : ffff00003fda3f00 x6 : > 000000013417d29a > [   43.407886] x5 : 0000000000000000 x4 : 0000000000000002 x3 : > 0000000000000010 > [   43.415010] x2 : 0000000000000000 x1 : 0000000000000000 x0 : > ffff0000000d8000 > [   43.422135] Call trace: > [   43.424570]  __might_sleep+0x74/0x7c (P) > [   43.428487]  mutex_lock+0x24/0x80 > [   43.431797]  spi_bus_lock+0x20/0x50 > [   43.435281]  tpm_tis_spi_transfer_full+0x70/0x2c4 > [   43.439979]  tpm_tis_spi_read_bytes+0x3c/0x48 > [   43.444321]  tpm_tis_status+0x58/0xf8 > [   43.447978]  wait_for_tpm_stat_cond+0x30/0x90 > [   43.452329]  wait_for_tpm_stat+0x1cc/0x2e0 > [   43.456419]  tpm_tis_send_data+0xdc/0x334 > [   43.460423]  tpm_tis_send_main+0x74/0x160 > [   43.464427]  tpm_tis_send+0xd4/0x13c > [   43.467998]  tpm_transmit+0xc4/0x3c4 > [   43.471569]  tpm_transmit_cmd+0x38/0xd4 > [   43.475399]  tpm2_shutdown+0x6c/0xa4 > [   43.478970]  tpm_class_shutdown+0x60/0x88 > [   43.482974]  device_shutdown+0x130/0x25c > [   43.486891]  kernel_restart+0x44/0xa4 > [   43.490549]  __do_sys_reboot+0x114/0x254 > [   43.494466]  __arm64_sys_reboot+0x24/0x30 > [   43.498470]  invoke_syscall+0x48/0x10c > [   43.502214]  el0_svc_common.constprop.0+0x40/0xe0 > [   43.506911]  do_el0_svc+0x1c/0x28 > [   43.510222]  el0_svc+0x34/0xec > [   43.513273]  el0t_64_sync_handler+0xa0/0xe4 > [   43.517441]  el0t_64_sync+0x198/0x19c > > Best regards BR, Jarkko