Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.34 as permitted sender) client-ip=23.128.96.34;
Date:   Sat, 7 Oct 2023 18:06:18 +0800
From:   Philip Li <philip.li@intel.com>
To:     Uros Bizjak <ubizjak@gmail.com>
CC:     kernel test robot <oliver.sang@intel.com>,
        <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
        <linux-kernel@vger.kernel.org>, <x86@kernel.org>,
        "Ingo Molnar" <mingo@kernel.org>, Nadav Amit <namit@vmware.com>,
        Andy Lutomirski <luto@kernel.org>,
        Brian Gerst <brgerst@gmail.com>,
        Denys Vlasenko <dvlasenk@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Josh Poimboeuf <jpoimboe@redhat.com>, <linux-mm@kvack.org>
Subject: Re: [tip:x86/percpu] [x86/percpu] ca42563486:
 BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#)
Message-ID: <ZSEtmiUERKp1+KX7@rli9-mobl>
References: <202310071301.a5113890-oliver.sang@intel.com>
 <CAFULd4bUu=wVhH8AweOPycEw2QsbFWSjP8ytr7SM6Z5WLOdWsA@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <CAFULd4bUu=wVhH8AweOPycEw2QsbFWSjP8ytr7SM6Z5WLOdWsA@mail.gmail.com>
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?K2tFUEVRd0lsQzV4dHlVVklmdWk0UHp1MjV4cWNoNlZ6Q0VROHhvaTRhaTlh?=
 =?utf-8?B?SjVrKzVzQlNRZHJZdXdpNHJqY0ZmS00xcXNmd0NwTzlJOHkvQkRsNmlhSHJG?=
 =?utf-8?B?cmxVKzhyd3ROMUVIbkF2elRmVk1UVUY1UE1ZVDN1dXY0Tk9LM0xUUzFyTHJF?=
 =?utf-8?B?S0lKSFB5bmVvY0FTenlEMGNsNGs5TklYQ2hQa2pmQktPOE95TTlnbmwzMDJx?=
 =?utf-8?B?bU9TenZoVVM4TVppQnN0Qkl3ZUdWN0FZYUtKeGFleDErUHVOZEoxK2g5aG93?=
 =?utf-8?B?REkwRTBUdjhBN1J6OW1mdkRPQXNNdXZGT0x5VnkrWVFpVHlsT25oOGRmRWUw?=
 =?utf-8?B?T1M2UXZVSWFjTk5SZUtYUXRqZE9nMmVyMktwV0pIREdFbzdBQVpZSHdMK2pE?=
 =?utf-8?B?VFRoaUhNL21VblJzS0tZWWlHR0VmaTNVL3JuM2J1STNSb245ODM3cEdYdGVW?=
 =?utf-8?B?VFZDbVplelZoK3EzaTd6NSsrSVBPUUdlc0psMDN3SWxENW0vQnZrakxzQkhE?=
 =?utf-8?B?aW5NazliSzVPSnZYYS9yb2dEaTRmbTJ5bk5lVEEzUm1UUldWQVFUSjEvZ1RU?=
 =?utf-8?B?VmVVQkZSc2VIZTltMFE1SE5od1d1VHZuOEJ2R0kyaDA2Y2xmWUk4cWs2OXNi?=
 =?utf-8?B?R1pKenlUUHN0ZFl0c3JrbTB4MmR4T1Era2ZDcUt5R0pER0xScWs0SFlvblZr?=
 =?utf-8?B?aU40NnQveTVNMEpRbjJjNk9JalVyd3dtMGMybXduN2NodE1PTHdjSmMrT3hD?=
 =?utf-8?B?dHJkY0lDZW9TQkFDUk4wREMxbFhPQlpqS2N2cXA0K05weGdkYzdSOGh3RkEz?=
 =?utf-8?B?VEN5K0VkRkd1b212YlVBN0gwNmoxelpIWk5yamg4emlyc3ZUbVV2V1ZrRDBi?=
 =?utf-8?B?bnVGUXM4eEJPVkpwTzBGSm1zVFl5VnhWTjRLcTErK1VpOHJNZVAzU2JobHpp?=
 =?utf-8?B?ZFI0RVMvUkZpaGZ0Sm43RWNDeFduZ2pjWVV4ZHZ2dEg3RXNEV3U1Z3p6Y0NN?=
 =?utf-8?B?Q0JidWhhNWRhN0xlSTJoNGlEa3NQa0JwRlV6K01iZGY2NzRUNE50b2xqcFVO?=
 =?utf-8?B?TU5XQml3ZzZpdUtFdWYxKzh2akU1YzNaNUo5bCtHckVBWTF5UDRMUTh0bXl2?=
 =?utf-8?B?MHBPNkp0eUNEUUdjQXNLRjRjUFNFZlVzUTVnTzRub2NZMldWNVltM1pOSlNy?=
 =?utf-8?B?bCtkbUhTRTNGTFlpVHVJSXl4cEpBa3M3VStMRnRVVlU3NkQ0K3M5dnZkbW54?=
 =?utf-8?B?SkNCT1RIRDR3Q3VRUDBwSk1FL0NkVnZBdkx3NW5MVDBQd2pNZWRheFc2aTQ2?=
 =?utf-8?B?TEw2RlY5ZmxEaWVpVHRpTmI4a1VlZDB3YTlEOGhvQWJVZDNDNXhwRXpNRzRK?=
 =?utf-8?B?M0U3anZ5a1pMaTFMSzZkUU1nY2xwZ2p2bFExV0luaUs1dTltS0NXaFMvYmVt?=
 =?utf-8?B?Nkg0WTBKY2U1WlVLZ2oyUWtweXQ2Qnp4NTkxK0NOSWdnc0JTSWtZbU9xZ1Vm?=
 =?utf-8?B?ejNvWXlhd25zdWVUeURYMmpCR2hXL05FbzE3aWxoTlRuM1JzN05NNHlSSmN6?=
 =?utf-8?B?ajk5T0UrbENBSW53QkpDVTUvY0Y5M2xaVTBMZ2poeXAzNHpWbEVrNzh0U2Fm?=
 =?utf-8?B?aEVvTnU5THpxMXVNVEFmd1c5bmZuUm1MQVMwd2lnYnRheW4vZXg3NHlZUnlz?=
 =?utf-8?B?cElZRW01SmpkQ2lvU09OMVh5cG1HMFlWS3ZNMjh3bWxDRHhoSzdWUGJ6bVo4?=
 =?utf-8?B?RWM0K3lyQVk3RHZ3OCtsOFpQTXJXaDdBSHIxN0RvZFZEbSttR1VCWmhUeWFY?=
 =?utf-8?B?Z1BIUU54dC9Udkhma0I5L3FpRVg5QUo2d2U0dTZQNy9HVFhMNG0rNjFDM04r?=
 =?utf-8?B?cnk0TmxaSHlEK2NHK1JOWUJwdytIK1VLU0Vadk43dTl6MkpzQVJuMVgyam9t?=
 =?utf-8?B?SXZTRUtVdFkyWEEzK1kxeU1UUkdWZDVhVjVUWkF2SmFxWHZrazZCMG4xYWFH?=
 =?utf-8?B?QXZ4SWJQVXpTWTRnQ3hEdExxZUpOK0dUTTY3WDNhVDR6NDRLR1pNYXdyaDc5?=
 =?utf-8?B?N0FQUUVTT3RNcXZ3UHJDZXhVMTAxdkUvSlczS2lSa0FFYmJVRmVNRHdnOUlV?=
 =?utf-8?Q?OW+zwScGvVG9QEqe04LZJDp5/?=
X-MS-Exchange-CrossTenant-Network-Message-Id: f8ab69b5-c8a8-4f8e-0fd6-08dbc71d1499
X-MS-Exchange-CrossTenant-AuthSource: BL0PR11MB2995.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Oct 2023 10:06:31.8510
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: n+Nh2KLyu5EZvjmuCcFf/w9StjqrMH7T6WghcLGi/pnLs+Gco0MhIT8NGBcP2+ZTmpQRlJ9OZ+ETLdzemR7X5w==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR11MB6014
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=2.7 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,
	DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,
	MAILING_LIST_MULTI,RCVD_IN_SBL_CSS,SPF_HELO_NONE,SPF_PASS autolearn=no
	autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Sat, 07 Oct 2023 03:07:03 -0700 (PDT)
X-Spam-Level: **

On Sat, Oct 07, 2023 at 11:36:26AM +0200, Uros Bizjak wrote:
> On Sat, Oct 7, 2023 at 8:16 AM kernel test robot <oliver.sang@intel.com> wrote:
> >
> >
> >
> > Hello,
> >
> > kernel test robot noticed "BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#)" on:
> >
> > commit: ca4256348660cb2162668ec3d13d1f921d05374a ("x86/percpu: Use C for percpu read/write accessors")
> > https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git x86/percpu
> >
> > [test failed on linux-next/master 0f0fe5040de5e5fd9b040672e37725b046e312f0]
> >
> > in testcase: boot
> >
> > compiler: gcc-12
> > test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
> >
> > (please refer to attached dmesg/kmsg for entire log/backtrace)
> >
> >
> > +--------------------------------------------------------------------------------------+------------+------------+
> > |                                                                                      | 9a462b9eaf | ca42563486 |
> > +--------------------------------------------------------------------------------------+------------+------------+
> > | boot_successes                                                                       | 13         | 0          |
> > | boot_failures                                                                        | 0          | 13         |
> > | BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#) | 0          | 13         |
> > +--------------------------------------------------------------------------------------+------------+------------+
> 
> Since this is a randconfig (x86_64-randconfig-006-20231006), does it
> mean that all other configs worked OK:

Thanks Uros. The previous report you receive are for build/compling test,
which means for these tested kconfigs, the kernel are built successfully.

For this report, we have found a possible boot issue on the reported kconfig
as compared to the parent commit. You can kindly do a check.

Thanks

> 
> i386                             allmodconfig   gcc
> i386                              allnoconfig   gcc
> i386                             allyesconfig   gcc
> i386         buildonly-randconfig-001-20231005   gcc
> i386         buildonly-randconfig-002-20231005   gcc
> i386         buildonly-randconfig-003-20231005   gcc
> i386         buildonly-randconfig-004-20231005   gcc
> i386         buildonly-randconfig-005-20231005   gcc
> i386         buildonly-randconfig-006-20231005   gcc
> i386                              debian-10.3   gcc
> i386                                defconfig   gcc
> i386                  randconfig-001-20231005   gcc
> i386                  randconfig-002-20231005   gcc
> i386                  randconfig-003-20231005   gcc
> i386                  randconfig-004-20231005   gcc
> i386                  randconfig-005-20231005   gcc
> i386                  randconfig-006-20231005   gcc
> 
> and
> 
> x86_64                            allnoconfig   gcc
> x86_64                           allyesconfig   gcc
> x86_64                              defconfig   gcc
> x86_64                randconfig-001-20231005   gcc
> x86_64                randconfig-002-20231005   gcc
> x86_64                randconfig-003-20231005   gcc
> x86_64                randconfig-004-20231005   gcc
> x86_64                randconfig-005-20231005   gcc
> x86_64                randconfig-006-20231005   gcc
> x86_64                          rhel-8.3-rust   clang
> x86_64                               rhel-8.3   gcc
> 
> are of interest to me. Assuming they are built with gcc-12, I wouldn't
> immediately blame the compiler for the failure. Due to the nature of
> the change, perhaps a weakness in the kernel has been found with some
> obscure config setting. As said, my default Fedora 39 kernel (6.5.5),
> built with gcc-13 works without any problems.
> 
> Also, does a successful report from yesterday [1] mean everything was OK?
> 
> [1] https://lore.kernel.org/lkml/202310060322.yeZgaj6Q-lkp@intel.com/
> 
> Uros.
>