Project Number Date
test_Tails_ISO_stable 5762 08 Jul 2025, 12:02

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 23:40.887 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
54.708
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 24.683
And I prepare Tails for memory erasure tests 0.680
When I start a process allocating 128 MiB of memory with a known pattern 5.634
Then patterns cover at least 128 MiB in the guest's memory 7.742 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.795
Then I find very few patterns in the guest's memory after 5 seconds 15.172 
Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)
After features/support/hooks.rb:330 1.647
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
39.336
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 9.051
And I prepare Tails for memory erasure tests 0.583
And I find very few patterns in the guest's memory 11.271 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.979
Then patterns cover at least 99% of the test FS size in the guest's memory 3.175 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.470
Then I find very few patterns in the guest's memory after 3 seconds 12.805 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
After features/support/hooks.rb:330 2.090
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:21.576
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 8.710
And I prepare Tails for memory erasure tests 4.292
When I plug and mount a 128 MiB USB drive with a vfat filesystem 16.277
Then I find very few patterns in the guest's memory 11.439 
Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 4.247
Then patterns cover at least 75% of the test FS size in the guest's memory 13.100 
Pattern coverage: 94.251% (120 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.331
Then I find very few patterns in the guest's memory after 3 seconds 6.042 
Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)
# read cache
When I mount the USB drive again 0.240
And I read the content of the test FS 0.865
Then patterns cover at least 99% of the test FS size in the guest's memory 7.893 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.695
Then I find very few patterns in the guest's memory after 3 seconds 6.437 
Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)
After features/support/hooks.rb:330 1.113
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:0.251
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 11.906
And I prepare Tails for memory erasure tests 0.799
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 57.318
Then I find very few patterns in the guest's memory 7.819 
Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.817
Then patterns cover at least 99% of the test FS size in the guest's memory 3.111 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.107
Then I find very few patterns in the guest's memory after 3 seconds 11.589 
Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)
# read cache
When I mount the USB drive again 9.245
And I read the content of the test FS 0.467
Then patterns cover at least 99% of the test FS size in the guest's memory 8.811 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.881
Then I find very few patterns in the guest's memory after 3 seconds 5.375 
Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)
After features/support/hooks.rb:330 1.217
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.589
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 14.511
And I prepare Tails for memory erasure tests 0.840
When I fill a 128 MiB file with a known pattern on the root filesystem 18.039
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.822
Then patterns cover at least 128 MiB in the guest's memory 2.518 
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 20.844 
Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)
After features/support/hooks.rb:330 3.695
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17:45.425
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 16:43.666
And I prepare Tails for memory erasure tests 2.460
When I fill a 128 MiB file with a known pattern on the persistent filesystem 33.943
When I trigger shutdown 0.041
Then I find very few patterns in the guest's memory after 20 seconds 25.312 
Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)
After features/support/hooks.rb:330 6.395
After features/support/hooks.rb:100 0.121