Project Number Date
test_Tails_ISO_stable 5693 02 Jun 2025, 14:26

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 12:12.796 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
26.695
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 8.709
And I prepare Tails for memory erasure tests 0.502
When I start a process allocating 128 MiB of memory with a known pattern 2.604
Then patterns cover at least 128 MiB in the guest's memory 4.535 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.912
Then I find very few patterns in the guest's memory after 5 seconds 9.430 
Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)
After features/support/hooks.rb:330 0.803
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
29.236
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 8.578
And I prepare Tails for memory erasure tests 0.453
And I find very few patterns in the guest's memory 3.813 
Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.022
Then patterns cover at least 99% of the test FS size in the guest's memory 4.978 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.444
Then I find very few patterns in the guest's memory after 3 seconds 8.944 
Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)
After features/support/hooks.rb:330 1.092
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.473
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 9.728
And I prepare Tails for memory erasure tests 0.455
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.370
Then I find very few patterns in the guest's memory 3.788 
Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.087
Then patterns cover at least 75% of the test FS size in the guest's memory 4.372 
Pattern coverage: 88.636% (113 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.203
Then I find very few patterns in the guest's memory after 3 seconds 7.249 
Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)
# read cache
When I mount the USB drive again 0.199
And I read the content of the test FS 0.663
Then patterns cover at least 99% of the test FS size in the guest's memory 3.950 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.562
Then I find very few patterns in the guest's memory after 3 seconds 6.842 
Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)
After features/support/hooks.rb:330 0.911
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
1:15.663
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 8.395
And I prepare Tails for memory erasure tests 0.493
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.447
Then I find very few patterns in the guest's memory 3.261 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.626
Then patterns cover at least 99% of the test FS size in the guest's memory 3.700 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.714
Then I find very few patterns in the guest's memory after 3 seconds 6.102 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
# read cache
When I mount the USB drive again 4.290
And I read the content of the test FS 0.473
Then patterns cover at least 99% of the test FS size in the guest's memory 3.467 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.545
Then I find very few patterns in the guest's memory after 3 seconds 6.143 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
After features/support/hooks.rb:330 1.021
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
51.108
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.242
And I prepare Tails for memory erasure tests 0.454
When I fill a 128 MiB file with a known pattern on the root filesystem 16.156
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.195
Then patterns cover at least 128 MiB in the guest's memory 3.188 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 20.849 
Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)
After features/support/hooks.rb:330 3.465
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:18.619
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 7:33.905
And I prepare Tails for memory erasure tests 0.554
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.743
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.403 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
After features/support/hooks.rb:330 3.635
After features/support/hooks.rb:100 0.051