Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Mon, 15 Aug 2022 17:27:56 -0700
From:   Colin Foster <colin.foster@in-advantage.com>
To:     Pavel Machek <pavel@ucw.cz>
Cc:     linux-kernel@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Len Brown <len.brown@intel.com>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        Kevin Hilman <khilman@kernel.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Saravana Kannan <saravanak@google.com>,
        Geert Uytterhoeven <geert+renesas@glider.be>
Subject: Re: boot stuck at starting kernel, due to __genpd_dev_pm_attach?
Message-ID: <YvrkjH6/FpIzyAv+@euler>
References: <Yvpd2pwUJGp7R+YE@euler>
 <20220815182307.GA4658@duo.ucw.cz>
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20220815182307.GA4658@duo.ucw.cz>
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?/7T+Icg0zc6Zsl33mXYL6qeqZ5FW5zrfoUnPFAW4Tx4mFNv8dHBHRJi/GI0t?=
 =?us-ascii?Q?7VESbkGZX6rNwHGz4aMjyntpSjlCWhHXuq2CyFUbvzm20ZWw5ChkWefDHVYA?=
 =?us-ascii?Q?/o+B48Tvi1D7oVhedXrXISPlEAQogr5QRb+h+ru0om+aDUoNN6JT9sOai/N2?=
 =?us-ascii?Q?LFZO9uiY1JffnqyTnGxv1Dv1isnKEqaqnb9vnK3DaRZJM+ChVwUmftkxrPPP?=
 =?us-ascii?Q?7kM5CG2QFdghdHX7F7uKSkIwSmIOeGNat8E1ZyoaMsFI+CJAGgEyxsGt8CBi?=
 =?us-ascii?Q?ftzFUZRPicRG8AYLMuNaEgdJFBFk021d7Lh8KMNUT06MEFxhdrIy7/ctWmmt?=
 =?us-ascii?Q?/iitWjkxktGdWmVMDaN2GN8Ha1oc+Rcld+ZafZ5BLBJ03ircJfMh7iYZ08oH?=
 =?us-ascii?Q?RMdiI9CFMiF6MwGqMJLLq24RgMbssPxP+YnkgHXOOeut1MPQ0d3hvIDf1Ujh?=
 =?us-ascii?Q?RxqA6BQWk8xiM1dqpGiJtI4RrQ7TpoV5uLbaFNKd3g2SjH9E/YyTpfADS2tG?=
 =?us-ascii?Q?qoOtllu4dAT3X2ZvExtFXL13cj1a0prRlw6RDnY3NOHB/6K+AOgqOdlIDBsr?=
 =?us-ascii?Q?B7qMn6PFMYYaidwD/l27e6foC3rmyYr1YTK0tBnZ473hMaunvx35TjXOg+U0?=
 =?us-ascii?Q?66iCTrVAS55gdBfXXJtARmpodt/U61oeThMNZECnxOsXwXljr3z2sstTN3eI?=
 =?us-ascii?Q?2WRybCHTOm0GnajsUVZRGA8rQQx6t10Tv/iq0VSsvqhS1bLdC67xBhMRaZBE?=
 =?us-ascii?Q?D5XuSnZ48y5HvJDz4OytHTAnMHCPDWNXww1/3KPl3cm8kynfTshrgPDzXEge?=
 =?us-ascii?Q?yybzu4ha5BZN7ZTY1C4VLUPXW6OWFE27kllwcTlPCh9LVhaJrvYaP6/2IW4W?=
 =?us-ascii?Q?Z5T/4yJNkpfYprTPQnpA1frjnbLwrTUqGRP8VmLlH6lwC9CKAJLbtD9ByIpq?=
 =?us-ascii?Q?Avg9A7NCAApJakvu/bGni6a1W1faeyDFkrcOeMFRJyxISRhsXFqQs5KiiuHV?=
 =?us-ascii?Q?4GdqG1ivhvoGp3FOxTUaqvn8nTji0Bn6eo9N83RZ2XwRxG6GxR6S3CS8Crjy?=
 =?us-ascii?Q?ytERGGCLcn1PUHs4hBUJYxj6Xx22hh9dt/dv0j/7HJ7MqphBTJomFttqFLls?=
 =?us-ascii?Q?byO49xb5QPqW7/+Wm+XqQjwIRTJCi4EH+qwVMqIVMfScbtZzqJdx4hikJ51I?=
 =?us-ascii?Q?e/5tUsm6VUu1KX4siFgVkvx/p21qmN88sQiMjg2aLHxtRK0z7Se0FWzs4k+y?=
 =?us-ascii?Q?yWpzNscInGnXBMPykS7ry5scWPVZqMjqz+cY2cTgTROn4jjFSzrxtBoJOetp?=
 =?us-ascii?Q?QehCLhYRPXKLB70dSuAxec380vioC3nDgS58NIQ0dO4p/Ixzt5x9Bwn/0wBj?=
 =?us-ascii?Q?NFZPf7nGHr2C4GPtKKYmux/8uQKvUZ7i1ho9srVByYz7d0KntwKk9ZRgyx1w?=
 =?us-ascii?Q?QK8hbYsI9tlcSJinNj+UjuRelu+3gnYMMToP8KVNyB0S77qWHYT1eXJRMErt?=
 =?us-ascii?Q?LOgLRkUncKkv+xXcWDhzWtTHLhxwDkCyBDIPaa6b8KHxqMhoF8+9c2TMbfO9?=
 =?us-ascii?Q?/TRA78tRxWv8JcUG7FloMx+3mlW9hcGEK2OCUOt/NVjcedBEHHl72BpLBlVc?=
 =?us-ascii?Q?8A=3D=3D?=
X-OriginatorOrg: in-advantage.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 42445d89-672a-493f-aca0-08da7f1e2c37
X-MS-Exchange-CrossTenant-AuthSource: MWHPR1001MB2351.namprd10.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Aug 2022 00:27:59.6751
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 48e842ca-fbd8-4633-a79d-0c955a7d3aae
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: baq4CnTZGWBA3NZXuwgqkrFY4KDH/5tsE57yaDAI1AbwK67aCjmkyFwALhp9bmwCcPozG8tLU9bjBsFlVgnsfat37RKmKOJkb0biR5YJojM=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR10MB2776
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,
        T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Mon, Aug 15, 2022 at 08:23:07PM +0200, Pavel Machek wrote:
> Hi!
> 
> > You might have already gotten this report, but I tried running v6.0-rc1
> > on my BeagleBone Black and it gets stuck right after "Starting kernel
> > ..." from U-Boot.
> > 
> > A bisect pointed me to commit 5a46079a9645 ("PM: domains: Delete usage
> > of driver_deferred_probe_check_state()").
> > 
> > I don't have much more detail than that, other than I'm using the
> > in-tree am335x-boneblack.dts device tree and I believe I had tested with
> > the multi-v7-defconfig for this verification. I'm happy to test anything
> > that might offer more information.
> 
> Well, standart next step is reverting 5a46079a9645 on top of v6.0-rc1,
> and if it starts working, either you get fix in your inbox, or you ask
> Linus to revert :-).

I was able to revert 5a46079a9645 and 9cbffc7a5956 and successfully boot
v6.0-rc1 on the Beaglebone Black.

I still don't know whether the root cause is the patch, or perhaps an
invalid boneblack DTS. I'll try and dig to get more info about what
might be failing. But I do think anyone using a Beaglebone will have
this issue, and I also think I'm not the only using the BBB.

> 
> Best regards,
> 								Pavel
> -- 
> People of Russia, stop Putin before his war on Ukraine escalates.