Re: sparc64 panics - ctx_free: context xxxx still active

On Mon, Apr 13, 2026 at 02:20:32PM +0200, Jeremie Courreges-Anglas wrote:
> On Sat, Apr 11, 2026 at 08:43:57PM +0200, Mark Kettenis wrote:
> [...]
> > Lightly tested by building some kernels and libc with make -j24.  I've
> > never been able to trigger the db_enter() on my t5120, so I don't
> > expect to ever hit this code myself.
> > 
> > ok?
> 
> A bit late to the party, yes, LGTM.
> 
> I'm restarting an experiment with your latest version and moving the
> mtx_enter() call before the for loop.  The previous run didn't trigger
> since Fri 10, 1pm, running perl subprocesses and building libc in a
> loop.

mtx_enter before the for loop magically works around it.  Feels like
we're missing memory barriers somewhere.

-- 
jca