Project Number Date
test_Tails_ISO_stable 5585 20 Apr 2025, 12:44

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 11:34.932 Passed
Tags: @product @slow @not_release_blocker
Feature System memory erasure on shutdown
As a Tails user when I shutdown Tails I want the system memory to be free from sensitive data.
Tags: @product @slow @not_release_blocker
26.104
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.505
And I prepare Tails for memory erasure tests 0.485
When I start a process allocating 128 MiB of memory with a known pattern 3.153
Then patterns cover at least 128 MiB in the guest's memory 4.199 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.877
Then I find very few patterns in the guest's memory after 5 seconds 8.883 
Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)
After features/support/hooks.rb:330 0.813
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
26.188
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.774
And I prepare Tails for memory erasure tests 0.516
And I find very few patterns in the guest's memory 3.771 
Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.817
Then patterns cover at least 99% of the test FS size in the guest's memory 4.087 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.442
Then I find very few patterns in the guest's memory after 3 seconds 6.778 
Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)
After features/support/hooks.rb:330 0.881
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.847
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 9.051
And I prepare Tails for memory erasure tests 0.529
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.448
Then I find very few patterns in the guest's memory 4.099 
Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.567
Then patterns cover at least 75% of the test FS size in the guest's memory 4.050 
Pattern coverage: 88.159% (112 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.116
Then I find very few patterns in the guest's memory after 3 seconds 6.776 
Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)
# read cache
When I mount the USB drive again 0.286
And I read the content of the test FS 0.569
Then patterns cover at least 99% of the test FS size in the guest's memory 4.256 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.419
Then I find very few patterns in the guest's memory after 3 seconds 6.676 
Pattern coverage: 0.001% (0 MiB out of 872 MiB reference memory)
After features/support/hooks.rb:330 0.812
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
1:25.194
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.008
Given I have started Tails from DVD without network and logged in 9.719
And I prepare Tails for memory erasure tests 0.415
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.973
Then I find very few patterns in the guest's memory 3.216 
Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.299
Then patterns cover at least 99% of the test FS size in the guest's memory 4.631 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.903
Then I find very few patterns in the guest's memory after 3 seconds 6.342 
Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)
# read cache
When I mount the USB drive again 5.133
And I read the content of the test FS 0.561
Then patterns cover at least 99% of the test FS size in the guest's memory 4.233 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.988
Then I find very few patterns in the guest's memory after 3 seconds 6.776 
Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)
After features/support/hooks.rb:330 1.923
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.102
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.584
And I prepare Tails for memory erasure tests 0.457
When I fill a 128 MiB file with a known pattern on the root filesystem 17.041
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.955
Then patterns cover at least 128 MiB in the guest's memory 3.139 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.909 
Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)
After features/support/hooks.rb:330 3.518
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:34.493
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:47.819
And I prepare Tails for memory erasure tests 0.653
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.610
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.394 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
After features/support/hooks.rb:330 3.540
After features/support/hooks.rb:100 0.011