内核启动卡死问题定位通用方法讨论

零一

kernel启动过程中卡死，有无一些通用的方法能够快速定位卡死在哪里？

零一

zyk 发表于 2021-8-11 11:39
一般看log找问题

自己做的板子，按原理图修改好了dts，但是烧录进去后。卡死在kernel启动过程。同样的烧录到aioj板子，也可以启动Android。对比了 log

自己的板子

1. [    3.641029] I : [File] : drivers/gpu/arm/mali400/mali/linux/mali_kernel_linux.c; [Line] : 417; [Func] : mali_module_init(); svn_rev_string_from_arm of this mali_ko is '', rk_ko_ver is '5', built at '14:53:48', on 'Aug 10 2021'.
   
2. [    3.641236] Mali:
   
3. [    3.641238] Mali device driver loaded
   
4. [    3.641256] rkcif rkcif_mipi_lvds: clear unready subdev num: 1
   
5. [    3.641265] rkcif_mipi_lvds: Async subdev notifier completed
   
6. [    3.641276] rkisp rkisp-vir0: clear unready subdev num: 1
   
7. [    3.641527] rkisp0: update sensor failed
   

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卡死

aioj开发板

1. [    3.652232] I : [File] : drivers/gpu/arm/mali400/mali/linux/mali_kernel_linux.c; [Line] : 417; [Func] : mali_module_init(); svn_rev_string_from_arm of this mali_ko is '', rk_ko_ver is '5', built at '14:53:48', on 'Aug 10 2021'.
   
2. [    3.652897] Mali:
   
3. [    3.652901] Mali device driver loaded
   
4. [    3.652965] rkcif rkcif_mipi_lvds: clear unready subdev num: 1
   
5. [    3.652997] rkcif_mipi_lvds: Async subdev notifier completed
   
6. [    3.653032] rkisp rkisp-vir0: clear unready subdev num: 1
   
7. [    3.653740] rkisp0: update sensor failed
   
8. [    3.659380] ret 1024 0
   
9. [    3.660081] ALSA device list:
   
10. [    3.660120]   #0: rockchip,hdmi
    
11. [    3.660135]   #1: rockchip,rk809-codec
    
12. [    3.663559] Freeing unused kernel memory: 4096K
    
13. [    3.663782] Run /init as init process
    
14. [    3.669645] rockchip-dmc dmc: cpu3 policy NULL
    
15. [    3.733320] init: init first stage started!
    
16. [    3.733680] init: Unable to open /lib/modules, skipping module loading.
    
17. [    3.733815] init: First stage mount skipped (recovery mode)
    
18. [    3.734583] init: [libfs_mgr]ReadFstabFromDt(): failed to read fstab from dt
    
19. [    3.736057] init: Using Android DT directory /proc/device-tree/firmware/android/

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往下继续正常