在真正的nexus 6p上进行内核调试并接收SIGTRAP

Question

每个人。我通过这篇文章在实际设备上调试nexus 6p内核 On real nexus 6p

问题在于，一切正常，我可以使用此补丁进行单步操作， single step patch

但是，当我编写gdb脚本以使其在系统调用时自动停止并更改参数表时，我在脚本中使用了“ continue”。 gdb会给我这个错误。

Breakpoint 1, __copy_from_user () at 
arch/arm64/lib/copy_from_user.S:32
32      subs    x2, x2, #8
[Switching to Thread 1104]

Breakpoint 1, __copy_from_user () at 
arch/arm64/lib/copy_from_user.S:32
32      subs    x2, x2, #8
[Switching to Thread 1425]

Breakpoint 1, __copy_from_user () at 
arch/arm64/lib/copy_from_user.S:32
32      subs    x2, x2, #8
[Switching to Thread 671]

Breakpoint 1, __copy_from_user () at 
arch/arm64/lib/copy_from_user.S:32
32      subs    x2, x2, #8
[Switching to Thread 965]

Breakpoint 1, __copy_from_user () at 
arch/arm64/lib/copy_from_user.S:32
32      subs    x2, x2, #8
[Switching to Thread 673]

Breakpoint 1, __copy_from_user () at 
arch/arm64/lib/copy_from_user.S:32
32      subs    x2, x2, #8
[Switching to Thread 965]

Breakpoint 1, __copy_from_user () at 
arch/arm64/lib/copy_from_user.S:32
32      subs    x2, x2, #8
[Switching to Thread 4769]

Breakpoint 1, __copy_from_user () at 
arch/arm64/lib/copy_from_user.S:32
32      subs    x2, x2, #8

Program received signal SIGTRAP, Trace/breakpoint trap.
[Switching to Thread 965]
__copy_from_user () at arch/arm64/lib/copy_from_user.S:33
33      b.mi    2f

有人说这是多线程问题。我不知道为什么，因为将断点应用于所有线程，而在调试一个线程时，其他线程却停止了。谁能给我一些建议？