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OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=500
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Dr. Werner Fink 2014-01-30 08:59:45 +00:00 committed by Git OBS Bridge
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225
0001-core-introduce-new-KillMode-mixed-which-sends-SIGTER.patch Normal file
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@ -0,0 +1,225 @@
From 6fa7e1a944a2dbb89e794ad0f9da5d0fda5dc4a9 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 29 Jan 2014 13:38:55 +0100
Subject: [PATCH 1/3] core: introduce new KillMode=mixed which sends SIGTERM
only to the main process, but SIGKILL to all daemon processes
This should fix some race with terminating systemd --user, where the
system systemd instance might race against the user systemd instance
when sending SIGTERM.
---
man/systemd.kill.xml | 77 +++++++++++++++++++++++++++++++++-----------------
src/core/kill.c | 1 +
src/core/kill.h | 1 +
src/core/unit.c | 3 +-
units/user@.service.in | 1 +
5 files changed, 56 insertions(+), 27 deletions(-)
diff --git a/man/systemd.kill.xml b/man/systemd.kill.xml
index 1b10fba..a4009aa 100644
--- a/man/systemd.kill.xml
+++ b/man/systemd.kill.xml
@@ -44,39 +44,44 @@
<refnamediv>
<refname>systemd.kill</refname>
- <refpurpose>Kill environment configuration</refpurpose>
+ <refpurpose>Process killing procedure
+ configuration</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename><replaceable>service</replaceable>.service</filename>,
<filename><replaceable>socket</replaceable>.socket</filename>,
<filename><replaceable>mount</replaceable>.mount</filename>,
- <filename><replaceable>swap</replaceable>.swap</filename></para>
+ <filename><replaceable>swap</replaceable>.swap</filename>,
+ <filename><replaceable>scope</replaceable>.scope</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>Unit configuration files for services, sockets,
- mount points and swap devices share a subset of
- configuration options which define the process killing
- parameters of spawned processes.</para>
+ mount points, swap devices and scopes share a subset
+ of configuration options which define the
+ killing procedure of processes belonging to the unit.</para>
<para>This man page lists the configuration options
- shared by these four unit types. See
+ shared by these five unit types. See
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- for the common options of all unit configuration
- files, and
+ for the common options shared by all unit
+ configuration files, and
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- and
+ <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- for more information on the specific unit
- configuration files. The execution specific
+ and
+ <citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for more information on the configuration file options
+ specific to each unit type.</para>
+
+ <para>The kill procedure
configuration options are configured in the [Service],
- [Socket], [Mount], or [Swap] section, depending on the unit
- type.</para>
+ [Socket], [Mount] or [Swap] section, depending on the
+ unit type.</para>
</refsect1>
<refsect1>
@@ -87,32 +92,40 @@
<varlistentry>
<term><varname>KillMode=</varname></term>
<listitem><para>Specifies how
- processes of this service shall be
+ processes of this unit shall be
killed. One of
<option>control-group</option>,
<option>process</option>,
+ <option>mixed</option>,
<option>none</option>.</para>
<para>If set to
<option>control-group</option>, all
remaining processes in the control
- group of this unit will be terminated
- on unit stop (for services: after the
+ group of this unit will be killed on
+ unit stop (for services: after the
stop command is executed, as
configured with
<varname>ExecStop=</varname>). If set
to <option>process</option>, only the
main process itself is killed. If set
- to <option>none</option>, no process is
+ to <option>mixed</option> the
+ <constant>SIGTERM</constant> signal
+ (see below) is sent to the main
+ process while the subsequent
+ <constant>SIGKILL</constant> signal
+ (see below) is sent to all remaining
+ processes of the unit's control
+ group. If set to
+ <option>none</option>, no process is
killed. In this case only the stop
- command will be executed on unit
- stop, but no process be killed
+ command will be executed on unit stop,
+ but no process be killed
otherwise. Processes remaining alive
after stop are left in their control
group and the control group continues
to exist after stop unless it is
- empty. Defaults to
- <option>control-group</option>.</para>
+ empty.</para>
<para>Processes will first be
terminated via
@@ -133,14 +146,24 @@
option). See
<citerefentry><refentrytitle>kill</refentrytitle><manvolnum>2</manvolnum></citerefentry>
for more
- information.</para></listitem>
+ information.</para>
+
+ <para>Defaults to
+ <option>control-group</option>.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>KillSignal=</varname></term>
<listitem><para>Specifies which signal
- to use when killing a
- service. Defaults to <constant>SIGTERM</constant>.
+ to use when killing a service. This
+ controls the signal that is sent as
+ first step of shutting down a unit
+ (see above), and is usually followed
+ by <constant>SIGKILL</constant> (see
+ above and below). For a list of valid
+ signals, see
+ <citerefentry><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>. Defaults
+ to <constant>SIGTERM</constant>.
</para></listitem>
</varlistentry>
@@ -184,7 +207,9 @@
<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>kill</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
</refsect1>
diff --git a/src/core/kill.c b/src/core/kill.c
index ea947c2..4271346 100644
--- a/src/core/kill.c
+++ b/src/core/kill.c
@@ -52,6 +52,7 @@ void kill_context_dump(KillContext *c, FILE *f, const char *prefix) {
static const char* const kill_mode_table[_KILL_MODE_MAX] = {
[KILL_CONTROL_GROUP] = "control-group",
[KILL_PROCESS] = "process",
+ [KILL_MIXED] = "mixed",
[KILL_NONE] = "none"
};
diff --git a/src/core/kill.h b/src/core/kill.h
index 41773f0..d5f125f 100644
--- a/src/core/kill.h
+++ b/src/core/kill.h
@@ -32,6 +32,7 @@ typedef enum KillMode {
/* The kill mode is a property of a unit. */
KILL_CONTROL_GROUP = 0,
KILL_PROCESS,
+ KILL_MIXED,
KILL_NONE,
_KILL_MODE_MAX,
_KILL_MODE_INVALID = -1
diff --git a/src/core/unit.c b/src/core/unit.c
index 4b97710..0b10e57 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -3007,7 +3007,7 @@ int unit_kill_context(
}
}
- if (c->kill_mode == KILL_CONTROL_GROUP && u->cgroup_path) {
+ if ((c->kill_mode == KILL_CONTROL_GROUP || (c->kill_mode == KILL_MIXED && sigkill)) && u->cgroup_path) {
_cleanup_set_free_ Set *pid_set = NULL;
/* Exclude the main/control pids from being killed via the cgroup */
@@ -3021,6 +3021,7 @@ int unit_kill_context(
log_warning_unit(u->id, "Failed to kill control group: %s", strerror(-r));
} else if (r > 0) {
wait_for_exit = true;
+
if (c->send_sighup) {
set_free(pid_set);
diff --git a/units/user@.service.in b/units/user@.service.in
index 3718a57..3bb8696 100644
--- a/units/user@.service.in
+++ b/units/user@.service.in
@@ -17,3 +17,4 @@ Environment=SHELL=%s
ExecStart=-@rootlibexecdir@/systemd --user
Environment=DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/%I/dbus/user_bus_socket
Slice=user-%i.slice
+KillMode=mixed
--
1.8.4

62
0002-service-allow-KillMode-mixed-in-conjunction-with-PAM.patch Normal file
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@ -0,0 +1,62 @@
From 95d57e7b631a2d78b9b5d841125194052895470f Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 29 Jan 2014 13:49:54 +0100
Subject: [PATCH 2/3] service: allow KillMode=mixed in conjunction with
PAMName=
---
src/core/service.c | 20 +++++++-------------
1 file changed, 7 insertions(+), 13 deletions(-)
diff --git a/src/core/service.c b/src/core/service.c
index 6792024..e7f03e1 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1105,37 +1105,31 @@ static int service_verify(Service *s) {
return 0;
if (!s->exec_command[SERVICE_EXEC_START]) {
- log_error_unit(UNIT(s)->id,
- "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
+ log_error_unit(UNIT(s)->id, "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->type != SERVICE_ONESHOT &&
s->exec_command[SERVICE_EXEC_START]->command_next) {
- log_error_unit(UNIT(s)->id,
- "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
+ log_error_unit(UNIT(s)->id, "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) {
- log_error_unit(UNIT(s)->id,
- "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
+ log_error_unit(UNIT(s)->id, "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->type == SERVICE_DBUS && !s->bus_name) {
- log_error_unit(UNIT(s)->id,
- "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
+ log_error_unit(UNIT(s)->id, "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->bus_name && s->type != SERVICE_DBUS)
- log_warning_unit(UNIT(s)->id,
- "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
+ log_warning_unit(UNIT(s)->id, "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
- if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
- log_error_unit(UNIT(s)->id,
- "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
+ if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) {
+ log_error_unit(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing.", UNIT(s)->id);
return -EINVAL;
}
--
1.8.4

128
0003-core-make-sure-to-always-go-through-both-SIGTERM-and.patch Normal file
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@ -0,0 +1,128 @@
From b2ffdc8da536cd88a305f97517f356e2c5383a52 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 29 Jan 2014 14:58:04 +0100
Subject: [PATCH 3/3] core: make sure to always go through both SIGTERM and
SIGKILL states of units
Given that we now have KillMode=mixed where SIGTERM might kill a smaller
set than SIGKILL we need to make sure to always go explicitly throught
the SIGKILL state to get the right end result.
---
src/core/mount.c | 8 +++++++-
src/core/scope.c | 4 +++-
src/core/service.c | 10 +++++++---
src/core/socket.c | 6 +++++-
src/core/swap.c | 6 +++++-
5 files changed, 27 insertions(+), 7 deletions(-)
diff --git a/src/core/mount.c b/src/core/mount.c
index 3d46557..e418d09 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -854,8 +854,14 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
goto fail;
mount_set_state(m, state);
- } else if (state == MOUNT_REMOUNTING_SIGTERM || state == MOUNT_REMOUNTING_SIGKILL)
+ } else if (state == MOUNT_REMOUNTING_SIGTERM)
+ mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, MOUNT_SUCCESS);
+ else if (state == MOUNT_REMOUNTING_SIGKILL)
mount_enter_mounted(m, MOUNT_SUCCESS);
+ else if (state == MOUNT_MOUNTING_SIGTERM)
+ mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, MOUNT_SUCCESS);
+ else if (state == MOUNT_UNMOUNTING_SIGTERM)
+ mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, MOUNT_SUCCESS);
else
mount_enter_dead(m, MOUNT_SUCCESS);
diff --git a/src/core/scope.c b/src/core/scope.c
index 50e5dba..3a5c95e 100644
--- a/src/core/scope.c
+++ b/src/core/scope.c
@@ -221,7 +221,9 @@ static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
}
scope_set_state(s, state);
- } else
+ } else if (state == SCOPE_STOP_SIGTERM)
+ scope_enter_signal(s, SCOPE_STOP_SIGKILL, SCOPE_SUCCESS);
+ else
scope_enter_dead(s, SCOPE_SUCCESS);
return;
diff --git a/src/core/service.c b/src/core/service.c
index e7f03e1..4b481c2 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1964,10 +1964,9 @@ static void service_enter_stop_post(Service *s, ServiceResult f) {
if (r < 0)
goto fail;
-
service_set_state(s, SERVICE_STOP_POST);
} else
- service_enter_dead(s, SERVICE_SUCCESS, true);
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
return;
@@ -1993,6 +1992,7 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
s->main_pid,
s->control_pid,
s->main_pid_alien);
+
if (r < 0)
goto fail;
@@ -2005,8 +2005,12 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
}
service_set_state(s, state);
- } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
+ } else if (state == SERVICE_STOP_SIGTERM)
+ service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS);
+ else if (state == SERVICE_STOP_SIGKILL)
service_enter_stop_post(s, SERVICE_SUCCESS);
+ else if (state == SERVICE_FINAL_SIGTERM)
+ service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS);
else
service_enter_dead(s, SERVICE_SUCCESS, true);
diff --git a/src/core/socket.c b/src/core/socket.c
index 6c0ac1a..831876f 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -1298,8 +1298,12 @@ static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) {
goto fail;
socket_set_state(s, state);
- } else if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
+ } else if (state == SOCKET_STOP_PRE_SIGTERM)
+ socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_SUCCESS);
+ else if (state == SOCKET_STOP_PRE_SIGKILL)
socket_enter_stop_post(s, SOCKET_SUCCESS);
+ else if (state == SOCKET_FINAL_SIGTERM)
+ socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_SUCCESS);
else
socket_enter_dead(s, SOCKET_SUCCESS);
diff --git a/src/core/swap.c b/src/core/swap.c
index a68ab7c..8886fe8 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -655,7 +655,11 @@ static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) {
goto fail;
swap_set_state(s, state);
- } else
+ } else if (state == SWAP_ACTIVATING_SIGTERM)
+ swap_enter_signal(s, SWAP_ACTIVATING_SIGKILL, SWAP_SUCCESS);
+ else if (state == SWAP_DEACTIVATING_SIGTERM)
+ swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_SUCCESS);
+ else
swap_enter_dead(s, SWAP_SUCCESS);
return;
--
1.8.4

8
systemd-mini.changes
View File

@ -4,6 +4,14 @@ Thu Jan 30 08:29:00 UTC 2014 - werner@suse.de
- Change patch 0001-add-hdflush-for-reboot-or-hddown-for-poweroff.patch
to skip already by the kernel managed devices
-------------------------------------------------------------------
Wed Jan 29 18:03:39 UTC 2014 - arvidjaar@gmail.com
- fix timeout stopping user@.service (bnc#841544)
* 0001-core-introduce-new-KillMode-mixed-which-sends-SIGTER.patch
* 0002-service-allow-KillMode-mixed-in-conjunction-with-PAM.patch
* 0003-core-make-sure-to-always-go-through-both-SIGTERM-and.patch
-------------------------------------------------------------------
Tue Jan 28 12:44:07 UTC 2014 - werner@suse.de

9
systemd-mini.spec
View File

@ -265,6 +265,12 @@ Patch84: make-emergency.service-conflict-with-syslog.socket.patch
Patch85: 0001-upstream-systemctl-halt-reboot-error-handling.patch
# PATCH-FIX-SUSE 0001-add-hdflush-for-reboot-or-hddown-for-poweroff.patch
Patch86: 0001-add-hdflush-for-reboot-or-hddown-for-poweroff.patch
# PATCH-FIX-UPSTREAM 0001-core-introduce-new-KillMode-mixed-which-sends-SIGTER.patch -- Allow sending SIGTERM to main PID only (bnc#841544)
Patch87: 0001-core-introduce-new-KillMode-mixed-which-sends-SIGTER.patch
# PATCH-FIX-UPSTREAM 0002-service-allow-KillMode-mixed-in-conjunction-with-PAM.patch -- Allow using it with PAM enabled services (bnc#841544)
Patch88: 0002-service-allow-KillMode-mixed-in-conjunction-with-PAM.patch
# PATCH-FIX-UPSTREAM 0003-core-make-sure-to-always-go-through-both-SIGTERM-and.patch -- Make sure final SIGKILL actually kills everything (bnc#841544)
Patch89: 0003-core-make-sure-to-always-go-through-both-SIGTERM-and.patch
# udev patches
# PATCH-FIX-OPENSUSE 1001-re-enable-by_path-links-for-ata-devices.patch
@ -571,6 +577,9 @@ cp %{SOURCE7} m4/
%patch84 -p1
%patch85 -p1
%patch86 -p1
%patch87 -p1
%patch88 -p1
%patch89 -p1
# udev patches
%patch1001 -p1

8
systemd.changes
View File

@ -4,6 +4,14 @@ Thu Jan 30 08:29:00 UTC 2014 - werner@suse.de
- Change patch 0001-add-hdflush-for-reboot-or-hddown-for-poweroff.patch
to skip already by the kernel managed devices
-------------------------------------------------------------------
Wed Jan 29 18:03:39 UTC 2014 - arvidjaar@gmail.com
- fix timeout stopping user@.service (bnc#841544)
* 0001-core-introduce-new-KillMode-mixed-which-sends-SIGTER.patch
* 0002-service-allow-KillMode-mixed-in-conjunction-with-PAM.patch
* 0003-core-make-sure-to-always-go-through-both-SIGTERM-and.patch
-------------------------------------------------------------------
Tue Jan 28 12:44:07 UTC 2014 - werner@suse.de

9
systemd.spec
View File

@ -260,6 +260,12 @@ Patch84: make-emergency.service-conflict-with-syslog.socket.patch
Patch85: 0001-upstream-systemctl-halt-reboot-error-handling.patch
# PATCH-FIX-SUSE 0001-add-hdflush-for-reboot-or-hddown-for-poweroff.patch
Patch86: 0001-add-hdflush-for-reboot-or-hddown-for-poweroff.patch
# PATCH-FIX-UPSTREAM 0001-core-introduce-new-KillMode-mixed-which-sends-SIGTER.patch -- Allow sending SIGTERM to main PID only (bnc#841544)
Patch87: 0001-core-introduce-new-KillMode-mixed-which-sends-SIGTER.patch
# PATCH-FIX-UPSTREAM 0002-service-allow-KillMode-mixed-in-conjunction-with-PAM.patch -- Allow using it with PAM enabled services (bnc#841544)
Patch88: 0002-service-allow-KillMode-mixed-in-conjunction-with-PAM.patch
# PATCH-FIX-UPSTREAM 0003-core-make-sure-to-always-go-through-both-SIGTERM-and.patch -- Make sure final SIGKILL actually kills everything (bnc#841544)
Patch89: 0003-core-make-sure-to-always-go-through-both-SIGTERM-and.patch
# udev patches
# PATCH-FIX-OPENSUSE 1001-re-enable-by_path-links-for-ata-devices.patch
@ -566,6 +572,9 @@ cp %{SOURCE7} m4/
%patch84 -p1
%patch85 -p1
%patch86 -p1
%patch87 -p1
%patch88 -p1
%patch89 -p1
# udev patches
%patch1001 -p1