I am also seeing this (on 15.04), it started happening a few weeks ago. As suggested above it is associated with oneconf. Immediately before the popup appears (or as it appears) data in .cache/oneconf/..../package_list_... and host are updated and after a valid pwd is entered last_sync is updated. In auth.log the following is seen after entering the pwd
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: completed password prompt for callback :1.96@/org/gnome/keyring/Prompt/p1
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: encrypting data
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: sending the secret exchange: [sx-aes-1]\npublic=[snipped]
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: calling the PromptReady method on /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: returned from the PromptReady method on /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: received PerformPrompt call from callback /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: stopping prompting for operation /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: closing the prompt
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: stopping prompting for operation /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: couldn't find the callback for prompting operation /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: stopping prompting for operation /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: couldn't find the callback for prompting operation /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: stopping prompting for operation /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: couldn't find the callback for prompting operation /org/gnome/keyring/Prompt/p1@:1.96
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: calling the PromptDone on /org/gnome/keyring/Prompt/p1@:1.96, and ignoring reply
Aug 31 07:54:50 tigger gcr-prompter[4444]: 10 second inactivity timeout, quitting
Aug 31 07:54:50 tigger gcr-prompter[4444]: Gcr: unregistering prompter
Aug 31 07:54:50 tigger gcr-prompter[4444]: Gcr: disposing prompter
Aug 31 07:54:50 tigger gcr-prompter[4444]: Gcr: finalizing prompter
I am also seeing this (on 15.04), it started happening a few weeks ago. As suggested above it is associated with oneconf. Immediately before the popup appears (or as it appears) data in .cache/ oneconf/ ..../package_ list_.. . and host are updated and after a valid pwd is entered last_sync is updated. In auth.log the following is seen after entering the pwd
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: completed password prompt for callback :1.96@/ org/gnome/ keyring/ Prompt/ p1 1]\npublic= [snipped] keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96 keyring/ Prompt/ p1@:1.96, and ignoring reply
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: encrypting data
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: sending the secret exchange: [sx-aes-
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: calling the PromptReady method on /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: returned from the PromptReady method on /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: received PerformPrompt call from callback /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: stopping prompting for operation /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: closing the prompt
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: stopping prompting for operation /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: couldn't find the callback for prompting operation /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: stopping prompting for operation /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: couldn't find the callback for prompting operation /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: stopping prompting for operation /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: couldn't find the callback for prompting operation /org/gnome/
Aug 31 07:54:40 tigger gcr-prompter[4444]: Gcr: calling the PromptDone on /org/gnome/
Aug 31 07:54:50 tigger gcr-prompter[4444]: 10 second inactivity timeout, quitting
Aug 31 07:54:50 tigger gcr-prompter[4444]: Gcr: unregistering prompter
Aug 31 07:54:50 tigger gcr-prompter[4444]: Gcr: disposing prompter
Aug 31 07:54:50 tigger gcr-prompter[4444]: Gcr: finalizing prompter