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glibc should place these in the locale archive. For now, let's just skip
them from our output, since they are aliases anyway.
https://bugs.freedesktop.org/show_bug.cgi?id=63389
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If the user wants the fd to stay valid he should keep a reference to the
message object or duplicate the fd.
This unifies behaviour of demarshalling data fields and unix fds.
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There were old session state files accumulating in /run/systemd/session.
They confused e.g. "reboot", which thought there were still users logged
in. The files got created like this:
session_stop(Session *s) ->
...
unlink(s->state_file);
...
seat_set_active(s->seat, NULL) ->
session_save(...); /* re-creates the state file we just
unlinked */
Fix it simply by clearing the s->started flag earlier to prevent
any further writes of the state file (session_save() checks the flag).
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cronjobs are neither interactive user session, nor lock screens, nor
login screens, hence they should get their own class.
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As it turns out if you pass a va_list to a function its state becomes
undefined after that function returns, and this actually does break on
x86-32.
Hence, let's reimplement message_read_ap() without the use of recursion.
Instead we now build our own stack of types in an array so that we can
decode the entire parameter list in a single stackframe.
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Taken from
https://code.launchpad.net/~pali/ubuntu/raring/udev/hp-elitebook-8460p/+merge/157420
Signed-off-by: Martin Pitt <martinpitt@gnome.org>
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It's only needed for static linking.
https://bugs.freedesktop.org/show_bug.cgi?id=63309
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Make "systemd-analyze dot" output only lines with units matching
given glob(7) patterns. Add --from-pattern and --to-pattern options.
Without any patterns all relationships are printed as before.
A relationship must match the follwing expression:
(isempty(from) || from[0] || from[1] || .. || from[n]) &&
(isempty(to) || to[0] || to[1] || .. || to[n]) &&
(isempty(P) || P[0] || P[1] || ... || P[n])
where from[] and to[] are lists of patterns provided with subsequent
--from-pattern and --to-pattern respectively. P[] is a list of additional
patterns provided after the "dot" subcommand.
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Avoid "sender uid=65534, message ignored" case, where no credentials can
be read on the sender side.
Seems, the server socket does not enable credential receiving fast
enough, and the message from the client (without credential) sometimes
is queued before the credential passing was active.
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cgroup directories in sync
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We only use the image name in the case we're adding a kernel
Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
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Avoid the dynamic allocation for the _UID, _GID, and _PID strings.
The maximum size of the string can be determined at compile time.
The code has only been compile tested.
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When systemd was compiled without audit support, do not collect the
audit session and loginuid in the journal. This is saving a couple of
syscalls and memory allocations per log message.
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Avoid memory allocations to construct the path for files in the
procfs. The procfs paths are way shorter than the PATH_MAX so we
can use snprintf on a string located on the stack. This shows up
as a win on x86 using the benchmark program below.
$ make libsystemd-shared.la; gcc -O2 -Isrc/systemd/ -Isrc/ \
-o simple-perf-test simple-perf-test.c \
.libs/libsystemd-shared.a -lrt
#include "shared/util.h"
void test_once(void) {
pid_t pid = getpid();
char *tmp = NULL;
get_process_comm(pid, &tmp);
free(tmp);
tmp = NULL;
get_process_cmdline(pid, 0, 1, &tmp);
free(tmp);
is_kernel_thread(pid);
tmp = NULL;
get_process_exe(pid, &tmp);
free(tmp);
}
int main(int argc, char **argv)
{
int i;
for (i = 0; i < 50000; ++i)
test_once();
}
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When switching root, i.e. LANG can be set to the locale of the initramfs
or "C", if it was unset. When systemd deserializes LANG in the real root
this would overwrite the setting previously gathered by locale_set().
To reproduce, boot with an initramfs without locale.conf or change
/etc/locale.conf to a different language than the initramfs and check a
daemon started by systemd:
$ tr "$\000" '\n' </proc/$(pidof sshd)/environ | grep LANG
LANG=C
To prevent that, serialization of environment variables is skipped, when
serializing for switching root.
https://bugzilla.redhat.com/show_bug.cgi?id=949525
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In recent glibc, many commonly-used librt functions have moved
from librt to libc. This results in dbus' configure.ac
concluding that we don't need to link in librt. However,
sd-daemon.c needs it for mq_getattr(), causing the build
to fail.
dbus doesn't use POSIX message queues, so I'd prefer to be
able to avoid "if on Linux, link librt for sd-daemon.c".
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This would break backwards skipping.
https://bugs.freedesktop.org/show_bug.cgi?id=63250
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Fix for:
b92bea5d2a9481de69bb627a7b442a9f58fca43d
Causing:
systemd-logind[265]: Assertion 'd = event.data.ptr' failed at src/shared/dbus-loop.c:233, function bus_loop_dispatch(). Aborting.
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Fixes a memleak in error path in exec_context_load_environment.
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Before, we would initialize many fields twice: first
by filling the structure with zeros, and then a second
time with the real values. We can let the compiler do
the job for us, avoiding one copy.
A downside of this patch is that text gets slightly
bigger. This is because all zero() calls are effectively
inlined:
$ size build/.libs/systemd
text data bss dec hex filename
before 897737 107300 2560 1007597 f5fed build/.libs/systemd
after 897873 107300 2560 1007733 f6075 build/.libs/systemd
… actually less than 1‰.
A few asserts that the parameter is not null had to be removed. I
don't think this changes much, because first, it is quite unlikely
for the assert to fail, and second, an immediate SEGV is almost as
good as an assert.
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A fix for ff03aed06a422.
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