Re: ptrace + ioctl( LOOP_SET_FD ) brokeness.

[Arjan van de Ven]

On Fri, 2003-11-14 at 14:09, Bernhard Kaindl wrote:

> The reason for the process hang seems to be the way loop_set_fd calls calls
> kernel_thread():
> 
>         kernel_thread(loop_thread, lo, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
>         down(&lo->lo_sem); <- This seems to wait for loop_thread()
> 
> Since kernel_thread can fail at the moment, all places where it is
> called would need to be checked and error handling added.

kernel_thread could fail even before, after all it allocates memory.
So this code has always been buggy just harder to trigger

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