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Tue, 28 May 2024 23:13:45 +0800 (CST) From: David Wang <00107082@163.com> To: yjnworkstation@gmail.com Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, willy@infradead.org Subject: [BUG] 6.10.0-rc1: segfault at 0 when reboot with kernel config INIT_MLOCKED_ON_FREE_DEFAULT_ON=y Date: Tue, 28 May 2024 23:13:40 +0800 Message-Id: <20240528151340.4282-1-00107082@163.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wDXj7ek9FVmILt8Ag--.50944S4 X-Coremail-Antispam: 1Uf129KBjvJXoW7tF4fXF45GF4Utw18Cr4UArb_yoW8Kr4fpr 1j9F15Cr4vg34UAF18Jr43tF18t3yqka47Xr4DGryDXF1q9F15Jw17K3y5trWDGF45u3W7 J3WkXa18Kr1UXaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07joGQDUUUUU= X-Originating-IP: [111.35.185.173] X-CM-SenderInfo: qqqrilqqysqiywtou0bp/xtbB0g3sqmWXyBCpagAAsw X-Rspamd-Queue-Id: 3FE2220002 X-Stat-Signature: m61nd4tbsmgnpbi33bpmc5r7tr7h7qwi X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1716909248-196110 X-HE-Meta: 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 1yPsAwyC 9BsITZmeXZtLevLoFQnWwaf2JnYUB6rb7xipNt840bnlefOHfSGRuoBEYaQ+dMjBs4i50lVnohgaKZLKQCOiuTirEM9psDVHiIR/sfrdMxC3PItgPjn9kyXRt1+uZ4I1Fg1Rj3Dy49b22fnAQ0IsfXMa688OBoimkqo3ve0MLPZ8jijcGnEv8TtoYfU68GyQBgHhRkrZ7zymWtF3EFUhE3F/ajMe6xZzXy0Y1KzPAKYE5VirctgTRyveLQV89LXfgdLstMfMhhDa+rl4Q0xLIwdacXXwIdJB9cpBhNGMEhycYDbXWPN9BN0nqfNyke2yK0zW9VlWTLnSJ5y0Y8kh/bdrud70Ro1mKvgPKOGs+5Y4ys/eB6ccDq743tEFy4BfL7S4dt2j6mi6HTvgBiPmCREL16w== 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: 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? David