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units: let's establish the coredump socket before writting core_pattern sysctl

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It's a bit nicer if we only write the sysctl core_pattern once the
coredump socket is established, since it's the backend for the handler.

Given the systemd-coredump.socket basically has no dependencies that run
before it this should not really make things slower or so, it just
removes the tiny window where core pattern is in effect that wants to
connect to the backend socket but cannot.

The status quo isn't terrible, and not too different in effect: either
way, until the socket unit is up we won't process coredumps. It's mostly
what kind of behaviour you get then: an error due to /bin/false being
invoked, or an error because systemd-coredump can't connect to its
socket. After this patch we'll exclusively see the former.
This commit is contained in:
Lennart Poettering 2023-03-29 18:06:00 +02:00 committed by Yu Watanabe
parent c884484956
commit 62c72c60b5
1 changed files with 1 additions and 1 deletions
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units/systemd-coredump.socket
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@ -11,7 +11,7 @@
Description=Process Core Dump Socket
Documentation=man:systemd-coredump(8)
DefaultDependencies=no
Before=shutdown.target
Before=shutdown.target systemd-sysctl.service
Conflicts=shutdown.target
[Socket]