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man: explicitly note that units surviving soft-reboot should not pin resources
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@ -119,7 +119,9 @@
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processes running during a soft-reboot operation requires disconnecting the service comprehensively from
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processes running during a soft-reboot operation requires disconnecting the service comprehensively from
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the rest of the OS, i.e. minimizing IPC and reducing sharing of resources with the rest of the OS. A
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the rest of the OS, i.e. minimizing IPC and reducing sharing of resources with the rest of the OS. A
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possible mechanism to achieve this is the concept of <ulink
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possible mechanism to achieve this is the concept of <ulink
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url="https://systemd.io/PORTABLE_SERVICES">Portable Services</ulink>.</para>
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url="https://systemd.io/PORTABLE_SERVICES">Portable Services</ulink>, but make sure no resource from
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the host's root filesystem is pinned via <varname>BindPaths=</varname> or similar unit settings,
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otherwise the old root filesystem will be kept in memory as long as the unit is running.</para>
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<para>If units shall be left running until the very end of shutdown during a soft reboot operation, but
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<para>If units shall be left running until the very end of shutdown during a soft reboot operation, but
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shall be terminated regularly during other forms of shutdown, it's recommended to set
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shall be terminated regularly during other forms of shutdown, it's recommended to set
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