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 X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B627C1B0F2 for ; Wed, 20 Jun 2018 12:58:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E101920846 for ; Wed, 20 Jun 2018 12:58:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="oDYgne7E" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E101920846 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; 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Wed, 20 Jun 2018 07:58:18 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Wed, 20 Jun 2018 07:58:18 -0500 Received: from dlep33.itg.ti.com (157.170.170.75) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1466.3 via Frontend Transport; Wed, 20 Jun 2018 07:58:18 -0500 Received: from [192.168.2.6] (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id w5KCwFZ9013950; Wed, 20 Jun 2018 07:58:15 -0500 Subject: Re: 4.18.0-rc1-next-20180619 boot failed on beagle board x15 To: Tony Lindgren , Naresh Kamboju , Samuel Morris , Tejun Heo CC: , Linux-Next Mailing List , open list , Arnd Bergmann , , Olof Johansson , Tero Kristo References: <20180620102904.GC112168@atomide.com> From: Roger Quadros Openpgp: preference=signencrypt Autocrypt: addr=rogerq@ti.com; 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Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <20180620102904.GC112168@atomide.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-GB Content-Transfer-Encoding: 7bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tony, On 20/06/18 13:29, Tony Lindgren wrote: > Hi, > > * Naresh Kamboju [180620 05:55]: >> Linux next (4.18.0-rc1-next-20180619) boot failed on beagle board x15. > > Bisect points to commit aece27a2f01b ("ata: ahci_platform: allow disabling of > hotplug to save power"). > > Reverting the patch makes things work again. Any ideas what > might be going wrong here? Things clearly idle but then there > seems to be some register access with clocks disabled. The commit is doing this in probe. + pm_runtime_set_active(dev); pm_runtime_enable(dev); - pm_runtime_get_sync(dev); + pm_runtime_forbid(dev); On OMAP, the device is not guaranteed to be active at probe and so we can't say pm_runtime_set_active() and get rid of pm_runtime_get_sync(). > >> Full log of trace please refer this link, >> https://lkft.validation.linaro.org/scheduler/job/291535#L946 >> >> Here is back trace, >> [ 3.561640] omap_rng 48090000.rng: Random Number Generator ver. 20 >> [ 3.611949] brd: module loaded >> [ 3.641298] loop: module loaded >> [ 3.646435] at24 0-0050: 4096 byte 24c32 EEPROM, writable, 1 bytes/write >> [ 3.658481] ------------[ cut here ]------------ >> [ 3.663196] WARNING: CPU: 0 PID: 1 at >> /srv/oe/build/tmp-rpb-glibc/work-shared/am57xx-evm/kernel-source/drivers/bus/omap_l3_noc.c:147 >> l3_interrupt_handler+0x27c/0x39c >> [ 3.678052] 44000000.ocp:L3 Custom Error: MASTER MPU TARGET L4_CFG >> (Read): Data Access in User mode during Functional access >> [ 3.689330] Modules linked in: >> [ 3.692426] CPU: 0 PID: 1 Comm: swapper/0 Not tainted >> 4.18.0-rc1-next-20180619 #1 >> [ 3.699952] Hardware name: Generic DRA74X (Flattened Device Tree) >> [ 3.706099] [] (unwind_backtrace) from [] >> (show_stack+0x20/0x24) >> [ 3.713897] [] (show_stack) from [] >> (dump_stack+0xb0/0xdc) >> [ 3.721171] [] (dump_stack) from [] (__warn+0x118/0x130) >> [ 3.728270] [] (__warn) from [] >> (warn_slowpath_fmt+0x58/0x74) >> [ 3.735808] [] (warn_slowpath_fmt) from [] >> (l3_interrupt_handler+0x27c/0x39c) >> [ 3.744742] [] (l3_interrupt_handler) from [] >> (__handle_irq_event_percpu+0x90/0x45c) >> [ 3.754286] [] (__handle_irq_event_percpu) from >> [] (handle_irq_event_percpu+0x3c/0x8c) >> [ 3.764001] [] (handle_irq_event_percpu) from >> [] (handle_irq_event+0x48/0x6c) >> [ 3.772933] [] (handle_irq_event) from [] >> (handle_fasteoi_irq+0xb0/0x164) >> [ 3.781513] [] (handle_fasteoi_irq) from [] >> (generic_handle_irq+0x34/0x44) >> [ 3.790183] [] (generic_handle_irq) from [] >> (__handle_domain_irq+0x6c/0xc4) >> [ 3.798941] [] (__handle_domain_irq) from [] >> (gic_handle_irq+0x68/0xac) >> [ 3.807347] [] (gic_handle_irq) from [] >> (__irq_svc+0x5c/0x7c) >> [ 3.814874] Exception stack(0xee179c70 to 0xee179cb8) >> [ 3.819963] 9c60: fc140000 >> ee3e2f10 ee3a9810 00000000 >> [ 3.828189] 9c80: 00000000 ee3e2f10 fc140004 fc140000 ee3a9800 >> ee3a9810 00000000 ee179cdc >> [ 3.836414] 9ca0: ee179ce0 ee179cc0 c0c3b364 c0c3b2ec 60000013 ffffffff >> [ 3.843079] [] (__irq_svc) from [] >> (ahci_enable_ahci+0x24/0x70) >> [ 3.850789] [] (ahci_enable_ahci) from [] >> (ahci_save_initial_config+0x2c/0x388) >> [ 3.859894] [] (ahci_save_initial_config) from >> [] (ahci_platform_init_host+0x9c/0x4f4) >> [ 3.869609] [] (ahci_platform_init_host) from >> [] (ahci_probe+0xa0/0xc0) >> [ 3.878018] [] (ahci_probe) from [] >> (platform_drv_probe+0x58/0xac) >> [ 3.885989] [] (platform_drv_probe) from [] >> (driver_probe_device+0x25c/0x338) >> [ 3.894915] [] (driver_probe_device) from [] >> (__driver_attach+0xf4/0xf8) >> [ 3.903411] [] (__driver_attach) from [] >> (bus_for_each_dev+0x78/0xc4) >> [ 3.911643] [] (bus_for_each_dev) from [] >> (driver_attach+0x2c/0x30) >> [ 3.919696] [] (driver_attach) from [] >> (bus_add_driver+0x114/0x220) >> [ 3.927752] [] (bus_add_driver) from [] >> (driver_register+0x88/0x11c) >> [ 3.935896] [] (driver_register) from [] >> (__platform_driver_register+0x50/0x58) >> [ 3.945003] [] (__platform_driver_register) from >> [] (ahci_driver_init+0x24/0x28) >> [ 3.954195] [] (ahci_driver_init) from [] >> (do_one_initcall+0x9c/0x434) >> [ 3.962517] [] (do_one_initcall) from [] >> (kernel_init_freeable+0x3b8/0x53c) >> [ 3.971276] [] (kernel_init_freeable) from [] >> (kernel_init+0x18/0x128) >> [ 3.979597] [] (kernel_init) from [] >> (ret_from_fork+0x14/0x28) >> [ 3.987210] Exception stack(0xee179fb0 to 0xee179ff8) >> [ 3.992298] 9fa0: 00000000 >> 00000000 00000000 00000000 >> [ 4.000524] 9fc0: 00000000 00000000 00000000 00000000 00000000 >> 00000000 00000000 00000000 >> [ 4.008750] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 >> [ 4.015405] irq event stamp: 663130 >> [ 4.018926] hardirqs last enabled at (663129): [] >> _raw_spin_unlock_irqrestore+0x40/0x6c >> [ 4.027939] hardirqs last disabled at (663130): [] >> __irq_svc+0x4c/0x7c >> [ 4.035384] softirqs last enabled at (661486): [] >> __do_softirq+0x2a8/0x5e8 >> [ 4.043262] softirqs last disabled at (661449): [] >> irq_exit+0x178/0x1a4 >> [ 4.050826] ---[ end trace 095abac70926448f ]--- >> >> Best regards >> Naresh Kamboju >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-omap" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- cheers, -roger Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. 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