Project Number Date
test_Tails_ISO_stable 6536 27 Jul 2026, 18:54

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 8:9.636 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
20.421
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 7.755
And I prepare Tails for memory erasure tests 0.386
When I start a process allocating 128 MiB of memory with a known pattern 2.268
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.247 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.929
Then I find very few patterns in the guest's memory after 5 seconds 6.833 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.820
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.177
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 7.499
And I prepare Tails for memory erasure tests 0.481
And I find very few patterns in the guest's memory 2.256 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.773
Then patterns cover at least 99% of the test FS size in the guest's memory 1.940 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.345
Then I find very few patterns in the guest's memory after 3 seconds 4.880 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.991
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
34.470
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.023
Given I have started Tails from DVD without network and logged in 7.531
And I prepare Tails for memory erasure tests 0.455
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.458
Then I find very few patterns in the guest's memory 1.792 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.707
Then patterns cover at least 75% of the test FS size in the guest's memory 2.516 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.821
Then I find very few patterns in the guest's memory after 3 seconds 5.073 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
# read cache
When I mount the USB drive again 0.206
And I read the content of the test FS 0.529
Then patterns cover at least 99% of the test FS size in the guest's memory 2.212 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.411
Then I find very few patterns in the guest's memory after 3 seconds 4.753 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:339 0.921
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.363
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 6.885
And I prepare Tails for memory erasure tests 0.414
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.298
Then I find very few patterns in the guest's memory 1.846 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.492
Then patterns cover at least 99% of the test FS size in the guest's memory 1.753 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.607
Then I find very few patterns in the guest's memory after 3 seconds 5.301 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
# read cache
When I mount the USB drive again 5.459
And I read the content of the test FS 0.279
Then patterns cover at least 99% of the test FS size in the guest's memory 1.799 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.395
Then I find very few patterns in the guest's memory after 3 seconds 4.829 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
After features/support/hooks.rb:339 0.957
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.516
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 7.681
And I prepare Tails for memory erasure tests 0.392
When I fill a 128 MiB file with a known pattern on the root filesystem 29.453
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.658
Then patterns cover at least 128 MiB in the guest's memory 1.553 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.769 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 3.687
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:51.688
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:2.068
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the persistent filesystem 28.251
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.001 
Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)
After features/support/hooks.rb:339 3.688
After features/support/hooks.rb:108 0.018