System hang on shutdown when running freebsd-update

Juan Ramón Molina Menor listjm at
Wed Dec 10 13:20:55 UTC 2014

> >/  Another update. I narrowed down the issue due to /sbin/init being replaced. This might be the magic that freebsd-update does to make the crash happen. (Although there might be more situations that cause a hang.)
> />/
> />/  I can completely reliably trigger the hang on a default 10.1-RELEASE install on UFS2 in VMware Fusion with the following procedure:
> />/
> />/  # chflags noschg /sbin/init
> />/  # cp -Rp /sbin/init /sbin/init2
> />/  # rm -f /sbin/init
> />/  # mv /sbin/init2 /sbin/init
> />/  # chflags schg /sbin/init
> />/  # reboot
> />/  => Hang after "All buffers synced."
> /These commands do not trigger the issue here on a 10.1-RELEASE on VMware
> Player, but do it in a real system with the same release, both i386.
> When I last freebsd-updated this latter machine from 10.0 to
> 10.1-RELEASE, I also remember seeing the hang on shutdown.
> Hope it helps,
> Juan

The hang occurs again when running freebsd-update to install the 
security advisories of today on a 10.1-RELEASE i386. No problem under 
VMWare, same version.

Best regards,

More information about the freebsd-stable mailing list