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Always use our own macros, and name all our own macros the same style.
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each invocation
We can determine the list entry type via the typeof() gcc construct, and
so we should to make the macros much shorter to use.
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Emacs C indenting really gets confused by these lines if they carry no
trailing semicolon, hence let's make this nicer for good old emacs. The
other macros which define functions already do this too, so let's copy
the scheme here.
Also, let's use an uppercase name for the macro. So far our rough rule
was that macros that are totally not function-like (like this ones,
which define a function) are uppercase. (Well, admittedly it is a rough
rule only, for example function and variable decorators are all
lower-case SINCE THE CONSTANT YELLING IN THE SOURCES WOULD SUCK, and
also they at least got underscore prefixes.) Also, the macros that
define functions that we already have are all uppercase, so let's do the
same here...
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Since the invention of read-only memory, write-only memory has been
considered deprecated. Where appropriate, either make use of the
value, or avoid writing it, to make it clear that it is not used.
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This extends 62678ded 'efi: never call qsort on potentially
NULL arrays' to all other places where qsort is used and it
is not obvious that the count is non-zero.
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Always cache the results, and bypass low-level security calls when the
respective subsystem is not enabled.
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Before, when the user journal file was rotated, journal_file_rotate
could close the old file and fail to open the new file. In that
case, we would leave the old (deallocated) file in the hashmap.
On subsequent accesses, we could retrieve this stale entry, leading
to a segfault.
When journal_file_rotate fails with the file pointer set to 0,
old file is certainly gone, and cannot be used anymore.
https://bugzilla.redhat.com/show_bug.cgi?id=890463
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We already shew lines in full when using a pager or not on a
tty. The commit disables ellipsization in the sole remaining case,
namely when --follow is used.
This has been a popular request for a long time, and indeed, full
output seems much more useful. Old behaviour can still be requested by
using --no-full. Old options retain their behaviour for compatiblity,
but aren't advertised as much. This change applies only to jornalctl,
not to systemctl, when ellipsization is useful to keep the layout.
https://bugzilla.redhat.com/show_bug.cgi?id=984758
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Also print out unexpected epoll events explictly.
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clang FTW!
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In order to avoid a deadlock between journald looking up the
"systemd-journal" group name, and nscd (or anyother NSS backing daemon)
logging something back to the journal avoid all NSS in journald the same
way as we avoid it from PID 1.
With this change we rely on the kernel file system logic to adjust the
group of created journal files via the SETGID bit on the journal
directory. To ensure that it is always set, even after the user created
it with a simply "mkdir" on the shell we fix it up via tmpfiles on boot.
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Can help since the journal requires /etc/machine-id to exists in order to start,
and will simply silently exit when it does not.
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Vacuuming behaviour is a bit confusing, and/or we have some bugs,
so those additional messages should help to find out what's going
on. Also, rotation of journal files shouldn't be happening too
often, so the level of the messages is bumped to info, so that
they'll be logged under normal operation.
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Make a best-effort attempt to store information about crashes during
failure, currently if these are encountered the crash is completely
silenced.
ideally coredumpctl would show if a coredump is available.
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Currently this check happens when the coredump has been collected in
it's entirety and being received by journald. this is not ideal
behaviour when the crashing process is consuming significant percentage
of physical memory such as a large instance of firefox or a java
application.
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Before my previous patch, journal_file_empty wasn't be called with the
correct filename. Now that it's being called with the correct filename
it leaks file descriptors. This patch closes the file descriptors before
returning.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
[Edit harald@redhat.com: make use of _cleanup_close_ instead]
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d_name is modified on line 227 so if the entire journal name is needed
again p must be used. Before this change when journal_file_empty was called
on archived journals it would always return with -2.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
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* Introduce a macro to conditionally execute tests. This avoids
skipping the entire test if some parts require systemd
* Skip the journal tests when no /etc/machine-id is present
* Change test-catalog to load the catalog from the source directory
of systemd.
* /proc/PID/comm got introduced in v2.6.33 but travis is still
using v2.6.32.
* Enable make check and make distcheck on the travis build
* Use -D"CATALOG_DIR=STR($(abs_top_srcdir)/catalog)" as a STRINGIY
would result in the path '/home/ich/source/linux' to be expanded
to '/home/ich/source/1' as linux is defined to 1.
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Also, always show us timestamps in verbose mode.
https://bugzilla.redhat.com/show_bug.cgi?id=991678
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In 49998b383 (journald: do not overwrite syslog facility when
parsing priority) journald started ignoring facility part when
reading service stderr to convert to syslog messages. In this
case it is fine, because only the priority is allowed.
But the same codepath is used for syslog messages, where the
facility should be used. Split the two codepaths by explicitly
specyfing whether the facility should be ignored or not.
https://bugzilla.redhat.com/show_bug.cgi?id=988814
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Since the journal can handle multiple lines just well natively,
and rsyslog can be configured to handle them as well, there is no need
to truncate messages from syslog() after the first newline.
Reproducer:
1. Add following four lines to /etc/rsyslog.conf
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$EscapeControlCharactersOnReceive off
$ActionFileDefaultTemplate RSYSLOG_SysklogdFileFormat
$SpaceLFOnReceive on
$DropTrailingLFOnReception off
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3. Restart rsyslog
# service rsyslog restart
4. Compile and run the following program
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#include <stdio.h>
#include <syslog.h>
int main()
{
syslog(LOG_INFO, "aaa%caaa", '\n');
return 0;
}
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Actual results:
Below message appears in /var/log/messages.
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Sep 7 19:19:39 localhost test2: aaa
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Expected results:
Below message, which worked prior to systemd-journald
appears in /var/log/messages.
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Sep 7 19:19:39 localhost test2: aaa aaa
https://bugzilla.redhat.com/show_bug.cgi?id=855313
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This make systemd-delta follow the behaviour of systemctl
and journalctl.
https://bugs.freedesktop.org/show_bug.cgi?id=67656
[zj: unify color query methods between those three programs.]
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hashmap_free() wasn't being called on m->contexts and m->fds resulting
in a leak.
To reproduce do:
while(1) {
sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY);
sd_journal_close(j);
}
Memory usage will increase until OOM.
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Basically wraps an example provided by George McCollister.
Should help with leaks in the future.
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It can be quite useful when somebody confuses _PID with COREDUMP_PID :).
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In case of scripts, _EXE is set to the interpreter name, and
_COMM is set based on the file name. Add a match for _COMM,
and _EXE if the interpreter is not a link (e.g. for yum,
the interpreter is /usr/bin/python, but it is a link to
/usr/bin/python2, which in turn is a link to /usr/bin/python2.7,
at least on Fedora, so we end up with _EXE=/usr/bin/python2.7).
I don't think that such link chasing makes sense, because
the final _EXE name is more likely to change.
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message
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units at the same time
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When using Storage=none there is no point in collecting all the
information just to throw them away. After this change journald
consumes a lot less CPU time when only forwarding messages.
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Example:
2013-07-18T10:10:01+0200 sandworm CROND[20957]: (root) CMD (/usr/lib64/sa/sa1 1 1)
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Instead of :-0, :1, :5, etc., use -0, 1 or +1, 5, etc. For BOOT_ID+OFFSET,
use BOOT_ID+offset or BOOT_ID-offset (either + or - is required).
Also make error handling a bit more robust and verbose.
Modify the man page to describe the most common case (-b) first,
and the second most common case (-b -1) second.
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Two options are added: --show-cursor to print the cursor at the end,
and --after-cursor to resume logs on the next line after the previous one.
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A few asserts are replaced with 'return -EINVAL'. I think that
assert should not be used to check argument in public functions.
Fields in struct sd_journal are rearranged to make it less
swiss-cheesy.
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Hi,
I redid the boot ID look up to use enumerate_unique.
This is quite fast if the cache is warm but painfully slow if
it isn't. It has a slight chance of returning the wrong order if
realtime clock jumps around.
This one has to do n searches for every boot ID there is plus
a sort, so it depends heavily on cache hotness. This is in contrast
to the other way of look-up through filtering by a MESSAGE_ID,
which only needs about 1 seek + whatever amount of relative IDs
you want to walk.
I also have a linked-list + (in-place) mergesort version of this
patch, which has pretty much the same runtime. But since this one
is using libc sorting and armortized allocation, I prefer this
one.
To summarize: The MESSAGE_ID way is a *lot* faster but can be
incomplete due to rotation, while the enumerate+sort will find
every boot ID out there but will be painfully slow for large
journals and cold caches.
You choose :P
Jan
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I think this is the most important of the capabilities bitmasks to log.
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