Project Number Date
test_Tails_ISO_stable 5654 18 May 2025, 08:56

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 11:58.228 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
25.240
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 8.615
And I prepare Tails for memory erasure tests 0.363
When I start a process allocating 128 MiB of memory with a known pattern 2.430
Then patterns cover at least 128 MiB in the guest's memory 4.287 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.841
Then I find very few patterns in the guest's memory after 5 seconds 8.700 
Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)
After features/support/hooks.rb:330 0.772
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
26.918
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 8.436
And I prepare Tails for memory erasure tests 0.425
And I find very few patterns in the guest's memory 3.744 
Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.213
Then patterns cover at least 99% of the test FS size in the guest's memory 4.021 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.587
Then I find very few patterns in the guest's memory after 3 seconds 7.490 
Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)
After features/support/hooks.rb:330 0.738
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
49.484
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 8.608
And I prepare Tails for memory erasure tests 0.410
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.169
Then I find very few patterns in the guest's memory 3.232 
Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.199
Then patterns cover at least 75% of the test FS size in the guest's memory 3.736 
Pattern coverage: 87.366% (111 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.064
Then I find very few patterns in the guest's memory after 3 seconds 6.576 
Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)
# read cache
When I mount the USB drive again 0.257
And I read the content of the test FS 0.836
Then patterns cover at least 99% of the test FS size in the guest's memory 4.018 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.857
Then I find very few patterns in the guest's memory after 3 seconds 6.517 
Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)
After features/support/hooks.rb:330 0.906
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:14.303
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 9.176
And I prepare Tails for memory erasure tests 0.711
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.084
Then I find very few patterns in the guest's memory 2.850 
Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.052
Then patterns cover at least 99% of the test FS size in the guest's memory 2.865 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.051
Then I find very few patterns in the guest's memory after 3 seconds 5.909 
Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)
# read cache
When I mount the USB drive again 4.819
And I read the content of the test FS 0.448
Then patterns cover at least 99% of the test FS size in the guest's memory 3.403 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.979
Then I find very few patterns in the guest's memory after 3 seconds 5.949 
Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)
After features/support/hooks.rb:330 1.292
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.030
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 8.292
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the root filesystem 16.045
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.796
Then patterns cover at least 128 MiB in the guest's memory 2.677 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.802 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
After features/support/hooks.rb:330 3.525
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:12.250
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:29.526
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.958
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.382 
Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)
After features/support/hooks.rb:330 3.541
After features/support/hooks.rb:100 0.014