On 02-Jun-2002 kai ouyang wrote: > Based on the explain of the thread: struct proc *td_proc; /* Associated process. */ >in the struct > thread. > and refer to the CCD code. > I modify this function as following: > int raidlookup(path, td, vpp) > char *path; > struct thread *td; > struct vnode **vpp; /* result */ > { > struct nameidata nd; > struct vnode *vp; > struct vattr va; > struct proc *p; > int error, flags; > /* Sanity check the p_fd fields. This is really just a hack */ > p = td->td_proc;
So it dies here? > Now the system will be crash , when it excutes the "p = td->td_proc". > the system Information is : > kernel: type 12 trap, code=0 > Stopped at raidlookup+0x19: movl 0(%eax),%ebx Hmm, can you get the 'faulting va (virtual address)' error message that it prints out? Add a line to the beginning of the function as a sanity check that does: KASSERT(td != NULL, "thread is null"); and compile your kernel with invariants and see if it panics with "thread is null". -- John Baldwin <[EMAIL PROTECTED]> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message