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Shutemov" CC: Bagas Sanjaya , Borislav Petkov , Linux Kernel Mailing List , Linux Regressions Subject: Re: kexec reboot failed due to commit 75d090fd167ac Message-ID: <20230908060230.GA283801@ziqianlu-dell> References: <20230829114816.GA508985@ziqianlu-dell> <20230829125134.GA509331@ziqianlu-dell> <20230829125939.bcg2r6hwqf45npko@box.shutemov.name> <20230829140451.GA509854@ziqianlu-dell> <20230907131409.masxz42ik6u456qp@box.shutemov.name> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20230907131409.masxz42ik6u456qp@box.shutemov.name> X-ClientProxiedBy: SG2PR06CA0193.apcprd06.prod.outlook.com (2603:1096:4:1::25) To BYAPR11MB3062.namprd11.prod.outlook.com (2603:10b6:a03:92::18) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BYAPR11MB3062:EE_|IA1PR11MB8173:EE_ X-MS-Office365-Filtering-Correlation-Id: 658c3c2b-accb-4d6e-7291-08dbb0313606 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?s+xDB/1ld5DBP2XB4e9jvCPL0Br4/o6q/JC0SiBQbw0yDN+Rzfv/G7fpkvle?= =?us-ascii?Q?ZlJRu1fuBgmEpSYbQiwg9XaxH0yJH66NIpVwqiAlZ69X4i7g+mJ3HmqJnmAW?= =?us-ascii?Q?CO2LL1fOQ+qyg652Bqy92GqVcnxm/ZS6pNbAShXRx2MstHp+vXJ9025OPTdT?= =?us-ascii?Q?Tjkfeed763JX6MBE1n4YFSr/1uaaOANcUpxyPkv5lBuGYSsx/PR3nqMmFHkS?= =?us-ascii?Q?xY6SAp4ZamKkYF1WTC0Z88lqI1ebC3EJ6Lo80E/RXUtcILENSz1OwJvEjNMl?= =?us-ascii?Q?qQCuvQ8PnBh0+grI+jLYpm3feT3G9ZgB+zblApxu/yx7x5jfqM1p3vIKq3qe?= =?us-ascii?Q?wCAANrXFckjrJItOX7hPA18Ieatt7ofFcRd+uCqszuigTNOMQB4qsnRC0qCg?= =?us-ascii?Q?KsQ/uI+/zEajGqqiMse24E9VJbnBhlQDgTCuhjtDJ+dqoUXDiaauby8uKtFg?= =?us-ascii?Q?R05JMrY3vWrc/OKzbRirY3OSK8f71Y/DVu02jxFpz9qbG4nM2kJAdzDntaaq?= =?us-ascii?Q?aBWa/8qISUKAtVBK4yXwgh+nRBgkGImw/kCNz7PUt1CC+YbXYzofQfCb80e8?= =?us-ascii?Q?WqFNtHAIp0W8EvuJStk/1S6NA/p9lXZTqyTxZfcFpjRyVomGaHmZDtXfdk9x?= =?us-ascii?Q?94YN8mrp9NOaPdkpPrBPN0wPCKbZr3JFFoEcKPnSA0Ey16vvzoPYZnr020+I?= =?us-ascii?Q?PnxZsQanETltuNgZ6KLCgre7tyWUzwSgRgN+S3EbHhnJxj70fraCrOFOn2J0?= =?us-ascii?Q?LwaM1QxEfGpsD80VJNQCivD3FwwDBqJuQR1JSjH6Rkb8wWAtypQWMUfR3Kdo?= =?us-ascii?Q?N346hawiUK8ZwLl42o9DdkQLUp57fcwSEr6ROxa3UxCde9qLjChPR9XbfR0t?= =?us-ascii?Q?WBbjwkruNGwn7GNurIXEQpO8+a7NiKsAAQ3hpJeRQWLMQWpvP8gWoTWg4g0j?= =?us-ascii?Q?zt7gRJ13J9+yidf8VNFF0IOICBS63e5fsZLeo89rWHako9+F+Ex90MZzAnFf?= =?us-ascii?Q?KQFiYpESk0KCbx0nzaTTPVAiSv/CbyANiTZrL86s6PD3TksxW6EjSzkWvmO0?= =?us-ascii?Q?pCQE/algt+7MS34MPp0iZk6tdxDU5WQiWtwkGPidVdV9bOrlRrAFZA2PV1C3?= =?us-ascii?Q?1PSoFOVLWlaafzHSw+D8WOhSwxXPQS7G4KrWhn3R4Lut+IeumsVHQefn6J2z?= =?us-ascii?Q?WsVr2ySHoh3bOw5PF4l7bqqJ/oYy+AMmRnLUui4gk3bSV/0anyq2hTkvd6Pv?= =?us-ascii?Q?kU3+J4+GZLKmXx3/U1qE/m5ZSxsZkHyZsqH944291GYC1s7aZt12Q2KGWR5S?= =?us-ascii?Q?Mv2ShE1hg8z51DOmEZiRVgSF9Lb6q9Aoe0Z3WboviyjZyuFJGetD6WWSkqrt?= =?us-ascii?Q?2c54pzZdmeV3ptKIVWODeOfe70zvedhoKZvYFFonjS9Zhn7ByfXdvTU7E26+?= =?us-ascii?Q?FqfEUAX2q4n2nCZhYZTLlLftkNnHP3un/bCnRmBrxeAEA+HHJJjs6dUzUg6l?= =?us-ascii?Q?gBIwRFOJhUtj3ZL7R/2pCdQVsYCfZvp6H+HyOfJvlYJK7PiYJq7S3OkP44qx?= =?us-ascii?Q?U1TIzkRWtFaqqBSLMxQWVf6T5RptdBNW02LzjLJP?= X-MS-Exchange-CrossTenant-Network-Message-Id: 658c3c2b-accb-4d6e-7291-08dbb0313606 X-MS-Exchange-CrossTenant-AuthSource: BYAPR11MB3062.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Sep 2023 06:02:41.1657 (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: YdgLgCkqjDwSNmUw5W5GNyNoOeJ3wtjelgj3dZWIZzBRidMxCSQBD3einb+gHL7aJsSkQqqDLwFp0z3hKo0p6w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR11MB8173 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 07, 2023 at 04:14:09PM +0300, Kirill A. Shutemov wrote: > On Tue, Aug 29, 2023 at 10:04:51PM +0800, Aaron Lu wrote: > > > Could you show dmesg of the first kernel before kexec? > > > > Attached. > > > > BTW, kexec is invoked like this: > > kver=6.4.0-rc5-00009-g75d090fd167a > > kdir=$HOME/kernels/$kver > > sudo kexec -l $kdir/vmlinuz-$kver --initrd=$kdir/initramfs-$kver.img --append="root=UUID=4381321e-e01e-455a-9d46-5e8c4c5b2d02 ro net.ifnames=0 acpi_rsdp=0x728e8014 no_hash_pointers sched_verbose selinux=0" > > I don't understand why it happens. > > Could you check if this patch changes anything: > > diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c > index 94b7abcf624b..172c476ff6f3 100644 > --- a/arch/x86/boot/compressed/misc.c > +++ b/arch/x86/boot/compressed/misc.c > @@ -456,10 +456,12 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap, > > debug_putstr("\nDecompressing Linux... "); > > +#if 0 > if (init_unaccepted_memory()) { > debug_putstr("Accepting memory... "); > accept_memory(__pa(output), __pa(output) + needed_size); > } > +#endif > > __decompress(input_data, input_len, NULL, NULL, output, output_len, > NULL, error); > -- It solved the problem.