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[2003:cb:c73a:3a00:a025:9b06:549e:c16b]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4213709a0d2sm115216505e9.26.2024.06.04.06.50.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 04 Jun 2024 06:50:42 -0700 (PDT) Message-ID: Date: Tue, 4 Jun 2024 15:50:41 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [BUG] 6.10.0-rc1: segfault at 0 when reboot with kernel config INIT_MLOCKED_ON_FREE_DEFAULT_ON=y To: David Wang <00107082@163.com>, yjnworkstation@gmail.com Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, willy@infradead.org References: <20240528151340.4282-1-00107082@163.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: <20240528151340.4282-1-00107082@163.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 1DF63140010 X-Stat-Signature: 5niuw59aj9nuycts7tzfyq4bsk833bz9 X-HE-Tag: 1717509046-893181 X-HE-Meta: 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 T0yxImju 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 28.05.24 17:13, David Wang wrote: > Hi, > > My kernel is 6.10.0-rc1 with CONFIG_INIT_MLOCKED_ON_FREE_DEFAULT_ON=y, and > I got following screen when I execute `systemctl reboot` on my system. > (The text was extracted from a console image, there may be some parse error. And my kernel was tainted mostly because of nvidia driver) > > 42.855067] watchdog: watchdog0: watchdog did not stop! > 42.905871] show_signal_msg: 14 callbacks suppressed > 42.905874) systemd-shutdow[1]: segfault at 0 ip 0000000000000000 sp 00007ffcc8af7318 error 14 likely on CPU 6 (core 4, socke 42.906017] Code: Unable to access opcode bytes at 0xffffffffffffffd6. > 42.906080] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > 42.906143] CPU: 6 PID: 1 Comm: systemd-shutdow Tainted: P OE 6.10.0-rc1-linan-0 #244 > 42.906220] Hardware name: Micro-Star International Co., Ltd. MS-7889/B450M MORTAR MAX (MS-7889), BIOS 2.80 06/10/2020 42.906308] Call Trace: > 42.906329] > 42.906346] panic+0x31d/0x350 > 42.906375) ? srso_return_thunk+0x5/0x5f > 42.906411] do_exit+0x968/0xad0 > 42.906441] do_group_exit+0x2c/0x80 > 42.906472] get_signal+0x876/0x8a0 > 42.906502] arch_do_signal_or_restart+0x2a/0x240 > 42.906544] irgentry_exit_to_user_mode+0xc2/0x160 > 42.906585] asm_exc_page_fault+0x22/0x30 > 42.906619] RIP: 0033:0x0 > 42.906640] Code: Unable to access opcode bytes at 0xfffft fffffffd6. > 42.906693] RSP: 002b:00007ffcc8af7318 EFLAGS: 00010206 > 42.906736] RAX: 0000000000000011 RBX: 000000000328adea RCX: 0000000000000005 > 42.906794] RDX: 00007ffcc8af73b0 RSI: 0000000000000ea8 RDI: 0000000000000001 > 42.906852] RBP: 00007ffcc8af73be R08: 003b459fca9238c4 R09: 0000000000000069 > 42.906910] R10: 0000000000000008 R11: 0000000000000202 R12: 00007ffcc8af7330 > 42.906968] R13: 0000000000000ea8 R14: 0000000000000000 R15: 0000000000000000 > 42.907029] > 42.907328] Kernel Offset: 0x21a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) > 43.081928) --- [ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- > > > I rebuild the kernel with `CONFIG_INIT_MLOCKED_ON_FREE_DEFAULT_ON not set`, the system can reboot normally. > My guess, some memory is zeroed unproperly when reboot? Stumbled over that as well [1], maybe because of the messed up interaction with fork().. This should be reverted. Waiting for Andrews reply on my mail before I send a patch to do that. [1] https://lkml.kernel.org/r/4da9da2f-73e4-45fd-b62f-a8a513314057@redhat.com -- Cheers, David / dhildenb