This patch adds support for TCP TCP_NODELAY socket option. This can be
configured via NoDelay conf parameter. TCP Nagle's algorithm works by
combining a number of small outgoing messages, and sending them all at
once. This controls the TCP_NODELAY socket option.
This is not certain to be likely.
Lennart says: a frequent usecase is invoking some function regularly in intervals
in such a case every single iteration we'll have to rearm
THis was accidentally broken, as we truned off LLMNR far to frequently,
where we only wanted to turn off LLMNr on IPV6 on kernels lacking
support for it.
On receiving a message, "kernel_seqnum" is set to "serial + 1". So
subtracting 1 will cause messages like "Missed 0 kernel messages",
which should be "Missed 1 kernel messages".
switch-root would only mkdir the parents of the mount move directories.
With this patch, the mount move target directory is created to make
switch-root to an empty root directory work.
i is being used incorrectly. It is used to refer to the number of
indexes calculated so far (out of k). However, it is also incremented
when a new hash key is being used. This means that the results are
inconsistent with the desired behavior described in PORTING-DBUS1
document.
The expected result is that for the default values of m and k (512, 8)
the 1st hash key should produce 4 indexes. The second hash key is used
for the next 4 and overall 8 indexes into m are calculated.
The current behavior results in 6 indexes being calculated, 4 coming
from hash key 1 and 2 others from hash key 5.
It is useful to color in the admin state both to easily spot failed links, but also to quickly
distinguish between links that are fully configured and in degraded mode (only IPv4LL) or in
degraded mode and still waiting for DHCP.
This is the state when we are waiting for udev to initialize the device, and waiting for
libudev and rtnl to be in sync. In the future we probably will also be waiting for nl80211.
At this point we do not yet have enough information to know whether or not networkd should
be handling the device.
sd-event does not allow multiple handlers for a single signal. However,
logind sets up signal handlers for each session with VT_PROCESS set (that
is, it has an active controller). Therefore, registering multiple such
controllers will fail.
Lets make the VT-handler global, as it's mostly trivial, anyway. This way,
the sessions don't have to take care of that and we can simply acknowledge
all VT-switch requests as we always did.
This causes machines without connectivity to hang where they would otherwise fail. Keep it
opt-in for now, but consider whether we sholud just drop it.
Don't exit the name-finding loop when the 'kernel' policy is detected. We should
still find a fallback name if possible in the (very likely) case that no kernel
name is set at all.
Lennart Poettering