Bug#746485: systemd: Failed assertion when kill'ing -9 a simple service with Type=forking

[Jerome Poulin]

Package: systemd
Version: 44-11+deb7u4
Severity: important

Systemd has an assertion failure and was unsuable after the following.
Is systemd supposed to re-execute itself after such a failure?

Create with a config file such as:
some-service.service
[Unit]
Description=Some test service

[Service]
Type=forking
ExecStart=/bin/sleep 1000
User=someuser
Group=someuser

[Install]
WantedBy=multi-user.target

Start the service and kill it with kill -9 at the right moment while it
is starting.

The following backtrace could be obtained from the core file.
#0  0x00007fc952fac475 in *__GI_raise (sig=<optimized out>, sig at entry=6)
at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1  0x000000000040bea9 in crash (sig=6) at src/main.c:123
#2  <signal handler called>
#3  0x00007fc952fac475 in *__GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#4  0x00007fc952faf6f0 in *__GI_abort () at abort.c:92
#5  0x0000000000453729 in log_assert (text=text at entry=0x473651
"s->type == SERVICE_FORKING", 
file=file at entry=0x4730bb "src/service.c", line=line at entry=2956, 
func=func at entry=0x475bf0 "service_sigchld_event", 
format=format at entry=0x49ba00 "Assertion '%s' failed at
%s:%u, function %s(). Aborting.") at src/log.c:637
#6  0x0000000000453ca0 in log_assert_failed
(text=text at entry=0x473651 "s->type == SERVICE_FORKING", 
file=file at entry=0x4730bb "src/service.c",
line=line at entry=2956, 
func=func at entry=0x475bf0
"service_sigchld_event") at src/log.c:642
#7  0x0000000000420f31 in service_sigchld_event
(u=0x10788b0, pid=2248, code=2, status=9) at
src/service.c:2956
#8  0x000000000040cd02 in
manager_dispatch_sigchld (m=m at entry=0xfe7a30) at
src/manager.c:2145
#9  0x000000000041374f in
manager_process_signal_fd (m=<optimized out>) at
src/manager.c:2376
#10 process_event (ev=0x7fff4c9149d0,
m=0xfe7a30) at src/manager.c:2401
#11 manager_loop (m=0xfe7a30) at
src/manager.c:2535
#12 0x0000000000409fc8 in main (argc=<optimized
out>, argv=<optimized out>) at src/main.c:1490


-- System Information:
Debian Release: 7.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-4-amd64 (SMP w/1 CPU core)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages systemd depends on:
ii  dpkg                 1.16.12
ii  initscripts          2.88dsf-41+deb7u1
ii  libacl1              2.2.51-8
ii  libaudit0            1:1.7.18-1.1
ii  libc6                2.13-38+deb7u1
ii  libcap2              1:2.22-1.2
ii  libcryptsetup4       2:1.4.3-4
ii  libdbus-1-3          1.6.8-1+deb7u1
ii  libkmod2             9-3
ii  liblzma5             5.1.1alpha+20120614-2
ii  libpam0g             1.1.3-7.1
ii  libselinux1          2.1.9-5
ii  libsystemd-daemon0   44-11+deb7u4
ii  libsystemd-id128-0   44-11+deb7u4
ii  libsystemd-journal0  44-11+deb7u4
ii  libsystemd-login0    44-11+deb7u4
ii  libudev0             175-7.2
ii  libwrap0             7.6.q-24
ii  udev                 175-7.2
ii  util-linux           2.20.1-5.3

Versions of packages systemd recommends:
ii  libpam-systemd  44-11+deb7u4

Versions of packages systemd suggests:
ii  python        2.7.3-4+deb7u1
pn  python-cairo  <none>
pn  python-dbus   <none>
pn  systemd-gui   <none>

-- no debconf information