On Sat, Jun 27, 2026 at 11:00:56PM +0200, Mark Kettenis wrote:
> > Date: Sat, 27 Jun 2026 21:10:33 +0200
> > From: Anton Lindqvist <[email protected]>
> >
> > On Thu, Jun 25, 2026 at 02:14:20AM -0600, Mark Kettenis wrote:
> > > CVSROOT: /cvs
> > > Module name: src
> > > Changes by: [email protected] 2026/06/25 02:14:20
> > >
> > > Modified files:
> > > sys/kern : kern_exit.c
> > >
> > > Log message:
> > > Always untrace traced children even when they're exiting. But do skip
> > > sending them a SIGKILL. This prevents triggering a KASSERT in a
> > > convuluted
> > > scenario reported by Yuxiang Yang.
> > >
> > > "looks right" deraadt@
> > > ok claudio@
> >
> > This commit introduced a regression, the following command now hangs.
> >
> > make -C /home/src/regress/sys/ptrace | cat
>
> My tree is checked out under /usr/src, but I can't reproduce this here with:
>
> make -C /usr/src/regress/sys/ptrace | cat
I suspect this being timing sensitive. Always happens on my slow Haswell
amd64-regresss host. A ktrace can be found here, note I eventually
terminate by hitting Ctrl-C.
https://www.basename.se/tmp/ptrace-ktrace.out
