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Linux driver error

Time:11-12

Himself wrote a led driver, insmod loading way, but in at the time of application layer call open kernel error,
Root @ AM335X - Tronlong:/home/FTP/user#
Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [101.871694] Internal error: : 1028 # [1] PREEMPT ARM


Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [101.991922] Process leds_test (pid: 741, stack limit=0 xca958210)


Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [101.998140] Stack: (0 xca959d58 to 0 xca95a000)


Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [102.002534] 9 old d40: cf0d86d0 c02d7954


Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [102.010777] 9 the d60: cc3a6d90 cc008e40 ca959d8c ca959d78 c02d0a6c c02d7960 bf1d61e0 bf1d658c



This is how to return a responsibility, thought is the GPIO port conflict, and then change the device tree, still won't do

CodePudding user response:

refer to the original poster remote _ hope reply:
himself wrote a led driver, insmod loading way, but in at the time of application layer call open kernel error,
Root @ AM335X - Tronlong:/home/FTP/user#
Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [101.871694] Internal error: : 1028 # [1] PREEMPT ARM


Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [101.991922] Process leds_test (pid: 741, stack limit=0 xca958210)


Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [101.998140] Stack: (0 xca959d58 to 0 xca95a000)


Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [102.002534] 9 old d40: cf0d86d0 c02d7954


Broadcast message from systemd journald @ AM335X - Tronlong (Sat 10:42:17 2016-12-24 UTC) :

The kernel [485] : [102.010777] 9 the d60: cc3a6d90 cc008e40 ca959d8c ca959d78 c02d0a6c c02d7960 bf1d61e0 bf1d658c



This is how to return a responsibility, thought is the GPIO port conflict, and then change the device tree, still won't do

Access to the kernel null pointer

CodePudding user response:

Check leds_test address and call part of the Process, the kernel [485] : [101.991922] Process leds_test

CodePudding user response:

Internal error in general is not a null pointer
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