** Changed in: mir/0.20
Status: Triaged => Won't Fix
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https://bugs.launchpad.net/bugs/1536662
Title:
[regression] Black screen: Mir hangs and then crashes on startup/login
due to reading from /dev/random
Status in Mir:
Fix Committed
Status in Mir 0.19 series:
Won't Fix
Status in Mir 0.20 series:
Won't Fix
Status in Mir 0.21 series:
Triaged
Status in Unity System Compositor:
Fix Committed
Status in mir package in Ubuntu:
Triaged
Status in unity-system-compositor package in Ubuntu:
Fix Released
Bug description:
cookie_factory attempts to read data from /dev/random at boot, and
blocks until it has enough random data or timesout after 30 seconds.
How I can reproduce
1. Run the Unity8 greeter as a mir server
2. Reboot
Expected behavior: Greeter is displayed as mir && USC run happily
Actual behavior: Mir throws an exception after 30 seconds
Work-around:
Before logging in, move the mouse around lots, for at least 20 seconds. And
after logging in, while you're looking at a black screen, move the mouse around
furiously. This will populate the kernel entropy pool sufficiently to avoid the
hang and crash.
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