sensarliar
commented
5 months ago 1、add this code， not working。 2369 error(WARNING, 2370 "xxxxa: fp: %lx sp: %lx pc: %lx\n", 2371 stkptr, STACK_OFFSET_TYPE(stkptr), STACKSIZE()); 2372 error(WARNING, 2373 "xxxx22: fp: %lx sp: %lx pc: %lx\n", 2374 bt->stacktop, bt->stackbase, 0); 2375 if (stkptr > STACKSIZE() && !INSTACK(stkptr, bt)) { 2376 if (CRASHDEBUG(1)) 2377 error(WARNING, "stkptr: %lx is outside the kernel stack range\n", stkptr); 2378 return FALSE; 2379 }
bt PID: 64 TASK: ffffffc24c0b5b80 CPU: 6 COMMAND: "khungtaskd" bt: WARNING: xxxxarm64_unwind_frame: switch stacks: fp: ffffff8008003de0 sp: ffffffffff693de0 pc: 4000 bt: WARNING: xxxx22arm64_unwind_frame: switch stacks: fp: ffffff8008974000 sp: ffffff8008970000 pc: 0
0 [ffffff8008003f10] ipi_cpu_stop at ffffff9096a2a310
Segmentation fault (core dumped)
2、 add fatal error print，it works
2369 error(FATAL, 2370 "xxxxa: fp: %lx sp: %lx pc: %lx\n", 2371 stkptr, STACK_OFFSET_TYPE(stkptr), STACKSIZE());
uran0sH
when I use crash-7-branch code to parse the MTK arm64 dump, bt command got a coredump. log is here: 1、 crash ./symbols/vmlinux SYS_COREDUMP
crash 7.3.2 Copyright (C) 2002-2022 Red Hat, Inc. Copyright (C) 2004, 2005, 2006, 2010 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006, 2011, 2012 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005, 2011, 2020-2022 NEC Corporation Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc. Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc. This program is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Enter "help copying" to see the conditions. This program has absolutely no warranty. Enter "help warranty" for details.
BFD: ./symbols/vmlinux: don't know how to handle section
.relr.dyn' [0x 13] BFD: ./symbols/vmlinux: don't know how to handle section.relr.dyn' [0x 13] GNU gdb (GDB) 7.6 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "--host=x86_64-unknown-linux-gnu --target=aarch64-elf-linux"... BFD: /mnt/disk/code/dumpdump/20231231080842-00691540-fulldump/symbols/vmlinux: don't know how to handle section `.relr.dyn' [0x 13]WARNING: kernel relocated [104616MB]: patching 183134 gdb minimal_symbol values
WARNING: cpu 0: cannot find NT_PRSTATUS note WARNING: cpu 1: cannot find NT_PRSTATUS note WARNING: cpu 2: cannot find NT_PRSTATUS note WARNING: cpu 3: cannot find NT_PRSTATUS note WARNING: cpu 4: cannot find NT_PRSTATUS note WARNING: cpu 6: cannot find NT_PRSTATUS note WARNING: cpu 7: cannot find NT_PRSTATUS note KERNEL: ./symbols/vmlinux [TAINTED] DUMPFILE: SYS_COREDUMP CPUS: 8 [OFFLINE: 7] DATE: Sun Dec 31 16:02:42 CST 2023 UPTIME: 1 days, 22:05:37 LOAD AVERAGE: 80.90, 68.00, 44.75 TASKS: 551 NODENAME: localhost RELEASE: 4.19.191+ VERSION: #1 SMP PREEMPT Thu Dec 7 11:32:01 CST 2023 MACHINE: aarch64 (unknown Mhz) MEMORY: 7.7 GB PANIC: "-(5)[75:khungtaskd]Kernel panic - not syncing: hungtask: blocked tasks" PID: 75 COMMAND: "khungtaskd" TASK: ffffffcd92d349c0 [THREAD_INFO: ffffffcd92d349c0] CPU: 5 STATE: TASK_RUNNING (PANIC)
crash> bt PID: 75 TASK: ffffffcd92d349c0 CPU: 5 COMMAND: "khungtaskd" Segmentation fault (core dumped)
2、 gdb ~/code/github/crash22/crash/crash ./core-crash-28039-11-1705478417 GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1 Copyright (C) 2022 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: https://www.gnu.org/software/gdb/bugs/. Find the GDB manual and other documentation resources online at: http://www.gnu.org/software/gdb/documentation/.
For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /mnt/disk/code/github/crash22/crash/crash... [New LWP 28039] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/mnt/disk/code/github/crash22/crash/crash ./symbols/vmlinux SYS_CORED'. Program terminated with signal SIGSEGV, Segmentation fault.
0 arm64_is_kernel_exception_frame (bt=bt@entry=0x7fff65db1f60, stkptr=stkptr@entry=18446743524087971344) at arm64.c:2370
2370 if (INSTACK(regs->sp, bt) && INSTACK(regs->regs[29], bt) && (gdb) q