Fix launching pkexec applications#248
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When launching mintsources, timeshift or an app which Exec field (in the desktop file) starts with pkexec, nothing happens and the output states: "Refusing to render service to dead parents." For some reason this does not happen on fresh LMDE 4 and Mint 19.3 installations, but it happens on LMDE 3 -> LMDE 4 and 19.1 -> 19.3 upgrades. Similar bugs were fixed in nemo and cinnamon. Pkexec is known to cause issues depending on how it's launched. Specifying DO_NOT_REAP_CHILD in the spawn flags helps here. Afaik it makes it so we're the parent of the pkexec process during launch. Pkexec fails to launch otherwise. gather_pid_callback() does nothing, it's just there to ack the pid callback. Afaik this helps preventing zombie [defunct] processes when they terminate.
clefebvre
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Mar 31, 2020
When launching mintsources, timeshift or an app which Exec field (in the desktop file) starts with pkexec, nothing happens and the output states: "Refusing to render service to dead parents." For some reason this does not happen on fresh LMDE 4 and Mint 19.3 installations, but it happens on LMDE 3 -> LMDE 4 and 19.1 -> 19.3 upgrades. Similar bugs were fixed in nemo and cinnamon. Pkexec is known to cause issues depending on how it's launched. Specifying DO_NOT_REAP_CHILD in the spawn flags helps here. Afaik it makes it so we're the parent of the pkexec process during launch. Pkexec fails to launch otherwise. gather_pid_callback() does nothing, it's just there to ack the pid callback. Afaik this helps preventing zombie [defunct] processes when they terminate.
clefebvre
added a commit
that referenced
this pull request
Mar 31, 2020
When launching mintsources, timeshift or an app which Exec field (in the desktop file) starts with pkexec, nothing happens and the output states: "Refusing to render service to dead parents." For some reason this does not happen on fresh LMDE 4 and Mint 19.3 installations, but it happens on LMDE 3 -> LMDE 4 and 19.1 -> 19.3 upgrades. Similar bugs were fixed in nemo and cinnamon. Pkexec is known to cause issues depending on how it's launched. Specifying DO_NOT_REAP_CHILD in the spawn flags helps here. Afaik it makes it so we're the parent of the pkexec process during launch. Pkexec fails to launch otherwise. gather_pid_callback() does nothing, it's just there to ack the pid callback. Afaik this helps preventing zombie [defunct] processes when they terminate.
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When launching mintsources, timeshift or an app which Exec field (in the desktop file)
starts with pkexec, nothing happens and the output states:
"Refusing to render service to dead parents."
For some reason this does not happen on fresh LMDE 4 and Mint 19.3 installations,
but it happens on LMDE 3 -> LMDE 4 and 19.1 -> 19.3 upgrades.
Similar bugs were fixed in nemo and cinnamon. Pkexec is known to cause issues
depending on how it's launched.
Specifying DO_NOT_REAP_CHILD in the spawn flags helps here. Afaik it makes it so
we're the parent of the pkexec process during launch. Pkexec fails to launch
otherwise.
gather_pid_callback() does nothing, it's just there to ack the pid callback. Afaik
this helps preventing zombie [defunct] processes when they terminate.