Project Number Date
test_Tails_ISO_stable 5756 03 Jul 2025, 10:59

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 13:4.471 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
25.345
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 10.079
And I prepare Tails for memory erasure tests 0.558
When I start a process allocating 128 MiB of memory with a known pattern 1.680
Then patterns cover at least 128 MiB in the guest's memory 4.002 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.852
Then I find very few patterns in the guest's memory after 5 seconds 8.172 
Pattern coverage: 0.000% (0 MiB out of 871 MiB reference memory)
After features/support/hooks.rb:330 1.748
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
25.388
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 9.990
And I prepare Tails for memory erasure tests 0.547
And I find very few patterns in the guest's memory 2.658 
Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.597
Then patterns cover at least 99% of the test FS size in the guest's memory 3.532 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.496
Then I find very few patterns in the guest's memory after 3 seconds 6.565 
Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)
After features/support/hooks.rb:330 0.990
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.297
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 9.197
And I prepare Tails for memory erasure tests 0.713
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.439
Then I find very few patterns in the guest's memory 2.985 
Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.009
Then patterns cover at least 75% of the test FS size in the guest's memory 3.150 
Pattern coverage: 84.540% (107 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.793
Then I find very few patterns in the guest's memory after 3 seconds 6.286 
Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)
# read cache
When I mount the USB drive again 0.276
And I read the content of the test FS 0.644
Then patterns cover at least 99% of the test FS size in the guest's memory 3.839 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.883
Then I find very few patterns in the guest's memory after 3 seconds 6.078 
Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)
After features/support/hooks.rb:330 1.215
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:28.995
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 12.247
And I prepare Tails for memory erasure tests 1.055
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 43.836
Then I find very few patterns in the guest's memory 2.796 
Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.924
Then patterns cover at least 99% of the test FS size in the guest's memory 4.041 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.084
Then I find very few patterns in the guest's memory after 3 seconds 5.834 
Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)
# read cache
When I mount the USB drive again 5.529
And I read the content of the test FS 0.625
Then patterns cover at least 99% of the test FS size in the guest's memory 3.119 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.867
Then I find very few patterns in the guest's memory after 3 seconds 6.034 
Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)
After features/support/hooks.rb:330 2.294
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.605
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 8.862
And I prepare Tails for memory erasure tests 0.641
When I fill a 128 MiB file with a known pattern on the root filesystem 19.919
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.059
Then patterns cover at least 128 MiB in the guest's memory 3.301 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.030
Then I find very few patterns in the guest's memory after 20 seconds 20.791 
Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)
After features/support/hooks.rb:330 3.826
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:58.838
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 8:6.706
And I prepare Tails for memory erasure tests 0.750
When I fill a 128 MiB file with a known pattern on the persistent filesystem 28.331
When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 23.030 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
After features/support/hooks.rb:330 3.662
After features/support/hooks.rb:100 0.015