Project Number Date
test_Tails_ISO_stable 6531 26 Jul 2026, 11:39

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 7:40.304 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
18.198
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.492
And I prepare Tails for memory erasure tests 0.427
When I start a process allocating 128 MiB of memory with a known pattern 2.215
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.080 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.185
Then I find very few patterns in the guest's memory after 5 seconds 6.795 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 1.027
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.846
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.560
And I prepare Tails for memory erasure tests 0.359
And I find very few patterns in the guest's memory 1.799 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.846
Then patterns cover at least 99% of the test FS size in the guest's memory 2.049 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.397
Then I find very few patterns in the guest's memory after 3 seconds 4.834 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 0.962
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.213
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.514
And I prepare Tails for memory erasure tests 0.343
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.307
Then I find very few patterns in the guest's memory 1.901 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.584
Then patterns cover at least 75% of the test FS size in the guest's memory 2.030 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.750
Then I find very few patterns in the guest's memory after 3 seconds 4.658 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.388
Then patterns cover at least 99% of the test FS size in the guest's memory 2.045 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.453
Then I find very few patterns in the guest's memory after 3 seconds 5.068 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 1.156
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.317
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.671
And I prepare Tails for memory erasure tests 0.372
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.598
Then I find very few patterns in the guest's memory 1.867 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.223
Then patterns cover at least 99% of the test FS size in the guest's memory 1.785 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.490
Then I find very few patterns in the guest's memory after 3 seconds 4.752 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 4.007
And I read the content of the test FS 0.243
Then patterns cover at least 99% of the test FS size in the guest's memory 1.851 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.403
Then I find very few patterns in the guest's memory after 3 seconds 5.049 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 1.085
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.362
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.643
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the root filesystem 27.462
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.617
Then patterns cover at least 128 MiB in the guest's memory 1.569 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.679 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 3.767
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.366
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:47.852
And I prepare Tails for memory erasure tests 0.356
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.204
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.943 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:339 3.441
After features/support/hooks.rb:108 0.015