Issue with yum/systemd?

[Zbigniew Jędrzejewski-Szmek]

On Tue, Mar 10, 2015 at 08:15:38PM -0700, Dave Johansen wrote:
> On Tue, Mar 10, 2015 at 7:53 PM, Dave Johansen <davejohansen at gmail.com>
> wrote:
> 
> > On Tue, Mar 10, 2015 at 5:10 AM, Michal Schmidt <mschmidt at redhat.com>
> > wrote:
> >
> >> On 03/10/2015 03:13 AM, Dave Johansen wrote:
> >> > #0  0xb76debac in __kernel_vsyscall ()
> >> > #1  0xb7510d03 in __waitpid_nocancel () from /lib/libpthread.so.0
> >> > #2  0xb6fa4842 in rpmScriptRun () from /lib/librpm.so.3
> >> > #3  0xb6f83c53 in runScript () from /lib/librpm.so.3
> >> > #4  0xb6f8434f in runInstScript () from /lib/librpm.so.3
> >> > #5  0xb6f8531b in rpmpsmRun () from /lib/librpm.so.3
> >> > #6  0xb6f9a3cb in rpmteProcess () from /lib/librpm.so.3
> >> > #7  0xb6fa1714 in rpmtsRun () from /lib/librpm.so.3
> >> > [...]
> >> > It looks like yum is waiting on some process.
> >>
> >> It's waiting for a package scriptlet to finish.
> >>
> >
> > Here's the contents of the script that it's waiting on:
> > if [ $1 -eq 0 ] ; then
> >   # Package removal, not upgrade
> >   systemctl --no-reload disable minetest at default.service > /dev/null 2>&1
> > || :
> >   systemctl stop minetest at default.service > /dev/null 2>&1 || :
> > fi
> >
> 
> Sorry for the multiple emails. It's stuck on the call to stop the service.
> When I run status, I prints the following:
> . minetest at default.service - Minetest multiplayer server w/ default.conf
> server config
>    Loaded: loaded (/usr/lib/system/system/minetest at .service; disabled)
>    Active: inactive (dead)
> 
> Any recommendations on what I should do next to diagnose the source of the
> problem?

How long does it stay in this state? systemctl times out connections
after a timeout (25s ?), so even if it fails to communicate with PID1 for
any reason, rpm should still continue at some point.

pstree -ap <pid-of-rpm> should show a list of processes. If it's systemctl
that is hanging, can you post the backtrace?

Zbyszek