From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B05A2FF885A for ; Mon, 4 May 2026 16:05:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=wThVEhDgSbCnQM85Le2LRc0qrdkqcfV+fEMFRwjnpbM=; b=SQaqEwcvqulpcHWxFX2+80bAqm 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References:From:In-Reply-To:Content-Type: Content-Transfer-Encoding:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=AR1TitMf2fH+ii5SpE/iFG1MPHUzS8Epgibt9cUr+VQslyAH8k7u2bSmMruZ12fb aVPeTgjLXYMjoB9a4YhtHG64gzXv2OKG8UPkfn7Y7mLX1pi0R2JL6hfdjAY7QI8k3 nn/BU/1hvpjHpU2xBBNsxEpJBG5JlYN54Kk6fjlIwa/nLMLjNHBIK08ReNmNCFj+i h3SEDxim5SukQ85Zjf8np1QX9NtQ7NR87FovYcM/e9ZMv//OuKq8ZMN/auUMsxQRl kky4E2m6Y1XPFtl3q3u3SZN8nHSJMNRQQ9EmBbTTnK6nmzAO1I1ibyp+sYVF2WAn8 ppATna2n8ZU4vPjFnA== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from client.hidden.invalid by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MJE2D-1w0tTh2llz-00U14Z; Mon, 04 May 2026 18:05:26 +0200 Message-ID: <6964bec7-3dbb-453b-89ef-9b990217a8b9@gmx.net> Date: Mon, 4 May 2026 18:05:25 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: tpm: spi: do not call blocking ops when !TASK_RUNNING; during shutdown To: Jarkko Sakkinen 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" References: Content-Language: en-US From: Stefan Wahren Autocrypt: addr=wahrenst@gmx.net; keydata= xjMEZ1dOJBYJKwYBBAHaRw8BAQdA7H2MMG3q8FV7kAPko5vOAeaa4UA1I0hMgga1j5iYTTvN IFN0ZWZhbiBXYWhyZW4gPHdhaHJlbnN0QGdteC5uZXQ+wo8EExYIADcWIQT3FXg+ApsOhPDN NNFuwvLLwiAwigUCZ1dOJAUJB4TOAAIbAwQLCQgHBRUICQoLBRYCAwEAAAoJEG7C8svCIDCK JQ4BAP4Y9uuHAxbAhHSQf6UZ+hl5BDznsZVBJvH8cZe2dSZ6AQCNgoc1Lxw1tvPscuC1Jd1C TZomrGfQI47OiiJ3vGktBc44BGdXTiQSCisGAQQBl1UBBQEBB0B5M0B2E2XxySUQhU6emMYx f5QR/BrEK0hs3bLT6Hb9WgMBCAfCfgQYFggAJhYhBPcVeD4Cmw6E8M000W7C8svCIDCKBQJn V04kBQkHhM4AAhsMAAoJEG7C8svCIDCKJxoA/i+kqD5bphZEucrJHw77ujnOQbiKY2rLb0pE aHMQoiECAQDVbj827W1Yai/0XEABIr8Ci6a+/qZ8Vz6MZzL5GJosAA== In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am 04.05.26 um 15:42 schrieb Jarkko Sakkinen: > 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=3Dy in our= kernel >> config with mainline kernel 6.18.23 and reboot our board, I will get th= e >> following warning: > Please provide results with the latest mainline kernel. > Here you are [=C2=A0 =C2=A069.085410] do not call blocking ops when !TASK_RUNNING; stat= e=3D1 set=20 at [<0000000090f4020f>] prepare_to_wait_event+0x54/0x14c [=C2=A0 =C2=A069.097076] WARNING: kernel/sched/core.c:9086 at=20 __might_sleep+0x74/0x7c, CPU#0: systemd-shutdow/1 [=C2=A0 =C2=A069.106026] Modules linked in: flexcan can_dev rtc_rv3028 mse= 102x=20 phy_can_transceiver fuse autofs4 [=C2=A0 =C2=A069.114991] CPU: 0 UID: 0 PID: 1 Comm: systemd-shutdow Not ta= inted=20 7.1.0-rc2-00005-g6d35786de281-dirty #45 PREEMPT [=C2=A0 =C2=A069.125405] Hardware name: chargebyte Charge SOM Evaluation K= it (DT) [=C2=A0 =C2=A069.131741] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -= SSBS=20 BTYPE=3D--) [=C2=A0 =C2=A069.138690] pc : __might_sleep+0x74/0x7c [=C2=A0 =C2=A069.142608] lr : __might_sleep+0x74/0x7c [=C2=A0 =C2=A069.146525] sp : ffff800081b7b710 [=C2=A0 =C2=A069.149827] x29: ffff800081b7b710 x28: 0000000000000080 x27:= =20 ffff000002cafe80 [=C2=A0 =C2=A069.156951] x26: ffff800081965000 x25: 0000000000000018 x24:= =20 0000000000000000 [=C2=A0 =C2=A069.164075] x23: ffff800081b7b8f7 x22: 0000000000000000 x21:= =20 0000000000000080 [=C2=A0 =C2=A069.171199] x20: 000000000000013c x19: ffff8000813e2880 x18:= =20 0000000000000000 [=C2=A0 =C2=A069.178323] x17: 003fffffffffffff x16: 000000000017d600 x15:= =20 ffff00003fda1a00 [=C2=A0 =C2=A069.185447] x14: ffff000000132c00 x13: 00000000000002ce x12:= =20 0000000000000000 [=C2=A0 =C2=A069.192571] x11: 00000000000000c0 x10: 00000000000009e0 x9 := =20 ffff800081b7b580 [=C2=A0 =C2=A069.199695] x8 : ffff0000001335c0 x7 : ffff00003fda1280 x6 := =20 0000000000000000 [=C2=A0 =C2=A069.206819] x5 : 000000001fffffff x4 : 0000000000000001 x3 := =20 0000000000000010 [=C2=A0 =C2=A069.213943] x2 : 0000000000000000 x1 : 0000000000000000 x0 := =20 ffff000000132b80 [=C2=A0 =C2=A069.221068] Call trace: [=C2=A0 =C2=A069.223503]=C2=A0 __might_sleep+0x74/0x7c (P) [=C2=A0 =C2=A069.227420]=C2=A0 mutex_lock+0x24/0x80 [=C2=A0 =C2=A069.230731]=C2=A0 spi_bus_lock+0x20/0x50 [=C2=A0 =C2=A069.234214]=C2=A0 tpm_tis_spi_transfer_full+0x70/0x2c4 [=C2=A0 =C2=A069.238912]=C2=A0 tpm_tis_spi_read_bytes+0x3c/0x48 [=C2=A0 =C2=A069.243263]=C2=A0 tpm_tis_status+0x58/0xf8 [=C2=A0 =C2=A069.246920]=C2=A0 wait_for_tpm_stat_cond+0x30/0x90 [=C2=A0 =C2=A069.251271]=C2=A0 wait_for_tpm_stat+0x1cc/0x2e0 [=C2=A0 =C2=A069.255361]=C2=A0 tpm_tis_send_data+0xdc/0x35c [=C2=A0 =C2=A069.259365]=C2=A0 tpm_tis_send_main+0x74/0x18c [=C2=A0 =C2=A069.263369]=C2=A0 tpm_tis_send+0xd4/0x13c [=C2=A0 =C2=A069.266940]=C2=A0 tpm_transmit+0xc4/0x3c4 [=C2=A0 =C2=A069.270511]=C2=A0 tpm_transmit_cmd+0x38/0xd4 [=C2=A0 =C2=A069.274341]=C2=A0 tpm2_shutdown+0x6c/0xa4 [=C2=A0 =C2=A069.277912]=C2=A0 tpm_class_shutdown+0x60/0x88 [=C2=A0 =C2=A069.281916]=C2=A0 device_shutdown+0x130/0x258 [=C2=A0 =C2=A069.285833]=C2=A0 kernel_restart+0x44/0xa4 [=C2=A0 =C2=A069.289491]=C2=A0 __do_sys_reboot+0x114/0x244 [=C2=A0 =C2=A069.293408]=C2=A0 __arm64_sys_reboot+0x24/0x30 [=C2=A0 =C2=A069.297412]=C2=A0 invoke_syscall+0x54/0x10c [=C2=A0 =C2=A069.301156]=C2=A0 el0_svc_common.constprop.0+0x40/0xe0 [=C2=A0 =C2=A069.305853]=C2=A0 do_el0_svc+0x1c/0x28 [=C2=A0 =C2=A069.309164]=C2=A0 el0_svc+0x38/0x138 [=C2=A0 =C2=A069.312301]=C2=A0 el0t_64_sync_handler+0xa0/0xe4 [=C2=A0 =C2=A069.316478]=C2=A0 el0t_64_sync+0x198/0x19c