段错误可能的原因 段错误可能的原因
创建新系统调用时出现问题 系统调用返回“Bad Address”。为什么？ 回复：返回值 (C.H.Gopinath)
I tried to implement the system call, the way you did. That is
passing 2 strings s1, s2 and finding out their lengths. It did
give me segmentation fault.
I even tried to just print the strings within sys_print_data ()
using printk() as well as sys_write(), it did the same thing.
The message it gave was that the kernel was unable to
do paging at virtual address xxxxx..
I suppose there must be another way to pass strings to
the system call, but I don't know at this point. If I do in the
future, I will let you know.
saurabh desai。
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