On Wed, 2006-06-28 at 09:51 +0200, Jan Kiszka wrote:
> Philippe Gerum wrote:
> > On Mon, 2006-06-26 at 19:21 +0200, [EMAIL PROTECTED] wrote:
> >> plain text document attachment (enhance-kernel-fault-report.patch)
> >> Introduce xnarch_fault_um() to test if a fault happened in user-mode and
> >> applies the new feature to report core and driver crashes more verbosely.
> >
> >> if (xnpod_shadow_p()) {
> >> #ifdef CONFIG_XENO_OPT_DEBUG
> >> - if (xnarch_fault_notify(fltinfo)) /* Don't report debug
> >> traps */
> >> + if (!xnarch_fault_um(fltinfo)) {
> >> + xnarch_trace_panic_freeze();
> >
> > KGDB breakpoint issue?
>
> Sorry, please switch on verbose mode, didn't get yet what you mean.
Oops, sorry. I meant: what if a KGDB breakpoint is hit from kernel space
while running a shadow thread? The way I read the modified test sequence
above, such bp trap is going to trigger a panic, instead of being
silently passed to Linux.
>
> >
> >> + xnprintf
> >> + ("Switching %s to secondary mode after exception
> >> #%u in "
> >> + "kernel-space at 0x%lx (pid %d)\n", thread->name,
> >> + xnarch_fault_trap(fltinfo),
> >> + xnarch_fault_pc(fltinfo),
> >> + xnthread_user_pid(thread));
> >> + xnarch_trace_panic_dump();
> >> + } else if (xnarch_fault_notify(fltinfo)) /* Don't report debug
> >> traps */
> >
>
> Jan
>
--
Philippe.
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