Project Number Date
test_Tails_ISO_stable 6630 02 Sep 2026, 18:30

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 7:38.572 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
21.907
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 6.724
And I prepare Tails for memory erasure tests 0.443
When I start a process allocating 128 MiB of memory with a known pattern 2.238
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.721 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.895
Then I find very few patterns in the guest's memory after 5 seconds 7.884 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.799
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
22.076
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.635
And I prepare Tails for memory erasure tests 0.332
And I find very few patterns in the guest's memory 2.760 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.723
Then patterns cover at least 99% of the test FS size in the guest's memory 4.437 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.439
Then I find very few patterns in the guest's memory after 3 seconds 5.749 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.719
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.910
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.394
And I prepare Tails for memory erasure tests 0.313
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.274
Then I find very few patterns in the guest's memory 3.373 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.749
Then patterns cover at least 75% of the test FS size in the guest's memory 3.378 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.859
Then I find very few patterns in the guest's memory after 3 seconds 5.542 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
# read cache
When I mount the USB drive again 0.177
And I read the content of the test FS 0.737
Then patterns cover at least 99% of the test FS size in the guest's memory 3.011 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.588
Then I find very few patterns in the guest's memory after 3 seconds 6.510 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
After features/support/hooks.rb:339 0.817
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.832
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 6.484
And I prepare Tails for memory erasure tests 0.291
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.804
Then I find very few patterns in the guest's memory 2.727 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.290
Then patterns cover at least 99% of the test FS size in the guest's memory 2.957 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.658
Then I find very few patterns in the guest's memory after 3 seconds 5.653 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 3.783
And I read the content of the test FS 0.398
Then patterns cover at least 99% of the test FS size in the guest's memory 2.875 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.449
Then I find very few patterns in the guest's memory after 3 seconds 5.458 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.933
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.974
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 6.219
And I prepare Tails for memory erasure tests 0.302
When I fill a 128 MiB file with a known pattern on the root filesystem 12.843
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.610
Then patterns cover at least 128 MiB in the guest's memory 2.203 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.790 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 3.598
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:28.871
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 3:57.129
And I prepare Tails for memory erasure tests 0.293
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.072
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 21.367 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 3.384
After features/support/hooks.rb:108 0.012