[Bug 244250] Re: Spurious reboot notifications caused by libssl upgrades.

[Damian Yerrick]

A web server is supposed to retrieve data from database, run application
logic, write back to database if needed, write an HTML document or JSON
object to output, and wait for the next request. Ideally, it's stateless
between requests.

A desktop application, on the other hand, is more likely to have a lot
of state in RAM that isn't persisted to the file system. In particular,
you can't "simply restart" a web browser because when a browser
restarts, it retrieves the HTML document open in each tab as if the user
had navigated to it again. This incurs data loss in two ways:

1. If the user is offline, pages open in tabs for later reading will be replaced with "Cannot find server" error pages. (Chromium, for example, shows the "downasaur" minigame.) I often do this on my laptop so that I have something to read while riding the bus to work or wherever.
2. Several web applications, such as comment composition forms on Slashdot, lose DOM state if closed. When the browser navigates to the page again, the DOM is reset to what it was when the page was first opened, and the comment that the user was composing is lost. I imagine any webmail site that doesn't automatically save drafts in the background has the same problem, and even those that do save drafts will have a problem if the user is offline and the site doesn't use a Service Worker.

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https://bugs.launchpad.net/bugs/244250

Title:
  Spurious reboot notifications caused by libssl upgrades.

Status in openssl package in Ubuntu:
  Fix Released

Bug description:
  The postinst script for libssl0.9.8 currently has a bug where it sends
  a reboot notifcation whenever libssl is configured.  So reconfiguring
  libssl0.9.8 or even just installing libssl0.9.8 will result in a
  reboot notification.  Sending of the reboot notification should
  definitely be moved inside the upgrading guard.  The correct fix is
  likely to move it inside a version comparison guard for particular
  important updates like Colin suggests below -- this is what every
  other standard package using notify-reboot-required does.

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