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Spotted by uau in #systemd.
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message
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Previously, the logging sockets were asynchronous and if clogged we'd
lose messages. We did this to be extra careful given that PID 1 might
need to spawn the logging daemon as response to PID 1's own log messages
and we really should avoid a deadlock in that case.
As it turns out this causes loss of too many messages, hence make the
socket blocking again, however put a time limit on it to avoid unbounded
deadlocks in the unlikely case they happen.
https://bugs.freedesktop.org/show_bug.cgi?id=66664
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No sense in keeping this around if support for reading RD_TIMESTAMP has
been removed.
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units at the same time
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--dump-configuration-items" shows
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Based-on-a-patch-by: Ian Stakenvicius <axs@gentoo.org>
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Commit 2e996f4d4b642c5682c608c9692ad2ffae398ab2 added an include
of linux/netlink.h
This kernel header is not self contained in the linux 2.6 kernel
which breaks compilation with an unknown type sa_family_t
A workaround is to include linux/netlink.h after sys/socket.h
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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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This allows to show only units with specified LOAD or SUB or ACTIVE state.
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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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sphinx, oh sphinx, why do you require manual ficksups all the time?
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$ systemctl --user status hoohoo
hoohoo.service
Loaded: loaded (/home/zbyszek/.config/systemd/user/hoohoo.service; static)
Active: inactive (dead)
start condition failed at Tue 2013-06-25 18:08:42 EDT; 1s ago
ConditionPathExists=/tmp/hoo was not met
Full information is exported over D-Bus:
[(condition, trigger, negate, param, state),...]
where state is one of "failed" (<0), "untested" (0), "OK" (>0).
I've decided to use 0 for "untested", because it might be useful to
differentiate different types of failure later on, without breaking
compatibility.
systemctl shows the failing condition, if there was a non-trigger
failing condition, or says "none of the trigger conditions were met",
because there're often many trigger conditions, and they must all
fail for the condition to fail, so printing them all would consume
a lot of space, and bring unnecessary attention to something that is
quite low-level.
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ConditionPathExists=/tmp/nosuchpath failed for nosuchpath.service.
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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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Also export missing flags.
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Back in 6a58bf4135 raising stop iteration was removed from the C
code, but wasn't added in the Python counterpart.
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"not-found" is a recently added load state and was previously just a
special case of "error". Since it also indicates a load error we should
also highlight it red, the same way as "error" was treated before.
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process is defined
It won't help if the main process is still there and there is no new
process to kill.
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If you want timing information from the initramfs, use systemd in the
initramfs.
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dracut uses systemd in the initramfs and does not write these files
anymore.
The state of the root fsck is serialized.
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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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If we pass a variable to open()'s flags parameter it really wants a mode
parameter too, otherwise some gcc version whine. Hence, pass 0 in that
case.
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Simplify by using FOREACH_DIRENT and _cleanup_closedir_ macros.
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Based on a patch by Kay Sievers.
When a dead device nodes is tagged with "uaccess" using the static_node mechanism,
it's ACL's are managed by logind in the same way as "live" device nodes.
This allows in particular /dev/snd/{seq,timer} to cause modules to be loaded
on-demand when accessed by a non-privileged user.
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Based on a patch by Kay Sievers.
A tag is exported at boot as a symlinks to the device node in the folder
/run/udev/static_node-tags/<tagname>/, if the device node exists.
These tags are cleaned up by udevadm info --cleanup-db, but are otherwise
never removed.
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If you have a ASCII only terminal, there is no way to set the charmap to
ANSI_X3.4-1968, other than using LC_CTYPE=C.
We don't want to assume a UTF-8 capable terminal in this case and only
do so, if LANG, LC_ALL and LC_CTYPE are unset.
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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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Jan: test-tables fails on my system. The one it's failing on is:
syscall: 222 → (null) → -1
... and indeed, our own tables should not have holes, but syscall
tables certainly might.
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LANG does not have to be set and setting it to default to the default
does not add any value.
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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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In a User-Mode Linux session:
$ systemd-detect-virt
none
Although it is possible to reliably detect virtualization:
$ cat /proc/cpuinfo
processor : 0
vendor_id : User Mode Linux
model name : UML
mode : skas
host : Linux kytes 3.11.0-rc1-00009-ge5fd680 (...)
bogomips : 7007.43
So, grep for the string "\nvendor_id\t: User Mode Linux\n" in
/proc/cpuinfo, and say "uml" when asked.
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