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changing unit state
Unit _start() and _stop() implementations can fail with -EAGAIN to delay
execution temporarily. Thus, we should not output status messages before
invoking these calls, but after, and only when we know that the
invocation actually made a change.
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and start of list
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Commit 4e48855534 caused the .sh suffix to be stripped from the original
"filename", which caused the generated units to call the wrong init.d script.
Only use the .sh stripped file name for comparing with Provides:, not for
generating the Exec*= lines.
Spotted by sysv-generator-test.
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The help text, apart from being too long, did not describe what the options
really do.
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on the console too
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This should be useful for cases where clean rebooting doesn't work, and
the user wants to hurry up the reboot.
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the same sysv script
It's sufficient to check once if something is a regular file, hence,
let's do that.
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dispatch one of them at a time
If two start jobs for two seperate .swap device nodes are queued, which
then turns out to be referring to the same device node, refuse
dispatching more than one of them at the same time.
This should solve an issue when the same swap partition is found via GPT
auto-discovery and via /etc/fstab, where one uses a symlink path, and
the other the raw devce node. So far we might have ended up invoking
mkswap on the same node at the very same time with the two device node
names.
With this change only one mkswap should be executed at a time. THis
mkswap should have immediate effect on the other swap unit, due to the
state in /proc/swaps changing, and thus suppressing actual invocation of
the second mkswap.
http://lists.freedesktop.org/archives/systemd-devel/2015-January/027314.html
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Add a couple of exampels, at least one for each service type that
include some explanations and pointers to various relevant options.
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Add examples for (a) how to allow units to be enabled and (b)
overriding vendor settings to the man page.
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In containers without CAP_SYS_ADMIN, it is not possible to mount tmpfs
(or any filesystem for that matter) on top of /run/user/$UID.
Previously, logind just failed in such a situation.
Now, logind will resort to chown+chmod of the directory instead. This
allows logind still to work in those environments, although without the
guarantees it provides (i.e. users not being able to DOS /run or other
users' /run/user/$UID space) when CAP_SYS_ADMIN is available.
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If setup of per-user runtime dir fails, clean up afterwards by removing
the directory before returning from the function, so we don't leave the
directory behind.
If this is not done, the second time the user logs in logind would
assume that the directory is already set up, even though it isn't.
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need to install a lexically earlier .link file for it to be honoured
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Spotted by Christian Seiler:
http://lists.freedesktop.org/archives/systemd-devel/2015-January/027441.html
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Once IPv6 addresses have been acquired, assign these to the interface
with the prefix lengths taken from the ICMPv6 Router Advertisement
handling code. The preferred and valid IPv6 address lifetimes are
handed to the kernel which will clean up them if not renewed in time.
When a prefix announced via Router Advertisements expires, find all
addresses that match that prefix and update the address to have a
prefix length of 128 causing the prefix to be off-link.
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Keep the expired prefix for the duration of the prefix expiration event
and remove it afterwards.
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Add test cases that feeds an Router Advertisement to the ICMPv6 code
and verify that the correct prefix lengths are returned given an IPv6
address.
Enhance the prefix verification test by adding a shorter prefix and
check that the intended prefix lengths are now updated.
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Save each new onlink IPv6 prefix and attach an expiry timer to it.
If the prefixes overlap, take the shorter prefix and write a debug
message about the event. Once the prefix is resent in a Router
Advertisement, update the timer. Add a new event for the expiring
prefix.
Add two helper functions, one for returning a prefix length given a
Router Advertisement and the other for generic prefix matching given
an IPv6 prefix and address.
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Update MTU according to the latest value received.
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Each ICMPv6 structure has an interface index and will therefore be
associated with an IPv6 link containing a list of of prefixes.
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As the IPv6 prefixes are needed, update the ICMPv6 Router Advertisement
code to dynamically allocate a suitably sized buffer. Iterate through
the ICMPv6 options one by one returning error if the option length is
too big to fit the buffer.
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Revise the address iteration functions so that one helper function
resets the iterator to the start of the address list while the
second one fetches addresses one by one.
The test case is also updated.
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Under Python 2, sys.stdout.buffer is missing.
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We should prefer the unifont.hex file from the system, instead of our
own. Upstream has made a few releases since our version was included,
and we should follow upstream changes. But adding 2.6MB to our source
repo every time upstream releases is not nice.
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I looked over all access invocations, and I think are using access()
correctly. Accepting dangling symlinks makes sense only in special
circumstances.
So far we do not allow "flag" files like "/fastboot" to be dangling
symlinks. We could, but I don't see a reason to.
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This way timesyncd cannot be used to fork().
Note that it generally is not safe to use RLIMIT_NPROC, since it breaks
running the same daemon in multiple containers if they do not use user
namespacing. However, timesyncd is excepted from running in a container
anyway, hence it is safe in this case.
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http://lists.freedesktop.org/archives/systemd-devel/2015-January/027428.html
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The offline update mechanism is explicitly designed to work with a
separate /var. systemd-update-generator is supposed to run early,
before filesystems are mounted, so it cannot check if the
/system-update symlink actually points to anything.
The update is run *after* filesystems are mounted, so it should be
able to access the target of the symlink without trouble.
https://bugzilla.redhat.com/show_bug.cgi?id=1178978
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on aarch64
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