Re: Native build...

[Johnny Billquist <bqt%softjar.se@localhost>]

Hmm, maybe all we need is a larger interrupt stack?

        Johnny

Tom Ivar Helbekkmo skrev:
> Tom Ivar Helbekkmo <tih%Hamartun.Priv.NO@localhost> writes:
>
> > I deliberatedly quit a long-running 'top', whose parent shell had been
> > swapped out.  This now caused the VAX to drop to the chevron prompt,
> > claiming an 'ISP ERR'.
>
> ...and the PC tells me that it happened in /sys/arch/vax/vax/trap.c, at
> line 125 of version 1.112 of that file:
>
> void
> trap(struct trapframe *frame)
> {
>         u_int   sig = 0, type = frame->trap, code = 0;
>         u_int   rv, addr;
>         bool trapsig = true;
>         const bool usermode = USERMODE_P(frame);;
>         struct  lwp *l;
>         struct  proc *p;
>         u_quad_t oticks = 0;
>         struct vmspace *vm;
>         struct vm_map *map;
>         vm_prot_t ftype;
>
>         l = curlwp;
>         KASSERT(l != NULL);
> ==>     p = l->l_proc;
>         KASSERT(p != NULL);
>         uvmexp.traps++;
>         if (usermode) {
>                 type |= T_USER;
>                 oticks = p->p_sticks;
>                 l->l_addr->u_pcb.framep = frame;
>                 LWP_CACHE_CREDS(l, p);
>         }
>
>         type &= ~(T_WRITE|T_PTEFETCH);
>
> -tih

--
Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: bqt%softjar.se@localhost             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol