Project Number Date
test_Tails_ISO_stable 6711 30 Sep 2026, 15:22

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 8:43.223 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
25.784
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 6.430
And I prepare Tails for memory erasure tests 0.332
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 5.733 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.813
Then I find very few patterns in the guest's memory after 5 seconds 10.258 
Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)
After features/support/hooks.rb:339 3.089
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
29.057
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 6.465
And I prepare Tails for memory erasure tests 0.387
And I find very few patterns in the guest's memory 4.721 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.469
Then patterns cover at least 99% of the test FS size in the guest's memory 6.064 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.323
Then I find very few patterns in the guest's memory after 3 seconds 9.626 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
After features/support/hooks.rb:339 0.713
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
53.319
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 7.001
And I prepare Tails for memory erasure tests 0.310
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.492
Then I find very few patterns in the guest's memory 4.975 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.692
Then patterns cover at least 75% of the test FS size in the guest's memory 5.569 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.632
Then I find very few patterns in the guest's memory after 3 seconds 9.504 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.681
Then patterns cover at least 99% of the test FS size in the guest's memory 5.616 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.385
Then I find very few patterns in the guest's memory after 3 seconds 10.287 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 1.135
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:24.595
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 7.468
And I prepare Tails for memory erasure tests 0.342
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.593
Then I find very few patterns in the guest's memory 4.747 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.185
Then patterns cover at least 99% of the test FS size in the guest's memory 4.852 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 8.956 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# read cache
When I mount the USB drive again 4.863
And I read the content of the test FS 2.702
Then patterns cover at least 99% of the test FS size in the guest's memory 5.283 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 3.916
Then I find very few patterns in the guest's memory after 3 seconds 8.212 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 2.662
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
46.101
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 7.103
And I prepare Tails for memory erasure tests 0.434
When I fill a 128 MiB file with a known pattern on the root filesystem 12.871
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.613
Then patterns cover at least 128 MiB in the guest's memory 2.706 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.367 
Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)
After features/support/hooks.rb:339 3.447
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:44.365
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 4:12.338
And I prepare Tails for memory erasure tests 0.276
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.227
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.517 
Pattern coverage: 0.000% (0 MiB out of 1435 MiB reference memory)
After features/support/hooks.rb:339 3.791
After features/support/hooks.rb:108 0.033