Bug#791964: this has happened to me twice this week

[Zack Weinberg]

severity 791964 serious
quit

I'm bumping the severity of this bug back to 'serious' because system
upgrades have crashed my X session twice in one week.

I'm pretty sure one of these two times it was the systemd update to
228-1 that caused the problem; the other time (just now), I don't know
what caused it. But I don't think it should matter. gdm needs to be
coded so that *under no circumstances whatsoever* can a package
upgrade cause the loss of an active login session.

zw