Project Number Date
test_Tails_ISO_stable 6681 17 Sep 2026, 16:23

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 8:17.967 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
22.053
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.625
And I prepare Tails for memory erasure tests 0.342
When I start a process allocating 128 MiB of memory with a known pattern 2.278
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.960 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.208
Then I find very few patterns in the guest's memory after 5 seconds 9.638 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.715
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.946
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 6.811
And I prepare Tails for memory erasure tests 0.337
And I find very few patterns in the guest's memory 2.777 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.546
Then patterns cover at least 99% of the test FS size in the guest's memory 2.868 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.373
Then I find very few patterns in the guest's memory after 3 seconds 6.230 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
After features/support/hooks.rb:339 0.871
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
40.176
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 6.773
And I prepare Tails for memory erasure tests 0.328
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.440
Then I find very few patterns in the guest's memory 5.290 
Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.655
Then patterns cover at least 75% of the test FS size in the guest's memory 3.067 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.781
Then I find very few patterns in the guest's memory after 3 seconds 5.717 
Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)
# read cache
When I mount the USB drive again 0.176
And I read the content of the test FS 0.626
Then patterns cover at least 99% of the test FS size in the guest's memory 2.793 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.617
Then I find very few patterns in the guest's memory after 3 seconds 5.905 
Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)
After features/support/hooks.rb:339 0.549
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:17.093
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 6.625
And I prepare Tails for memory erasure tests 0.330
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.916
Then I find very few patterns in the guest's memory 5.056 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.453
Then patterns cover at least 99% of the test FS size in the guest's memory 4.585 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.472
Then I find very few patterns in the guest's memory after 3 seconds 11.344 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
# read cache
When I mount the USB drive again 3.672
And I read the content of the test FS 0.341
Then patterns cover at least 99% of the test FS size in the guest's memory 4.826 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 9.039 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
After features/support/hooks.rb:339 0.721
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
47.192
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.938
And I prepare Tails for memory erasure tests 0.336
When I fill a 128 MiB file with a known pattern on the root filesystem 13.073
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.680
Then patterns cover at least 128 MiB in the guest's memory 3.979 
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 21.176 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 3.828
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:50.504
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 4:19.113
And I prepare Tails for memory erasure tests 0.347
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.747
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 21.285 
Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)
After features/support/hooks.rb:339 3.765
After features/support/hooks.rb:108 0.013