Project Number Date
test_Tails_ISO_stable 6669 15 Sep 2026, 13:51

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 7:59.609 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
20.448
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 6.699
And I prepare Tails for memory erasure tests 0.293
When I start a process allocating 128 MiB of memory with a known pattern 2.343
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.157 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.197
Then I find very few patterns in the guest's memory after 5 seconds 7.756 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.807
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.250
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 6.596
And I prepare Tails for memory erasure tests 0.426
And I find very few patterns in the guest's memory 3.106 
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 1.721
Then patterns cover at least 99% of the test FS size in the guest's memory 3.198 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.398
Then I find very few patterns in the guest's memory after 3 seconds 5.802 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
After features/support/hooks.rb:339 0.983
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.824
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 6.682
And I prepare Tails for memory erasure tests 0.341
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.510
Then I find very few patterns in the guest's memory 2.795 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.538
Then patterns cover at least 75% of the test FS size in the guest's memory 3.257 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.737
Then I find very few patterns in the guest's memory after 3 seconds 5.899 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
# read cache
When I mount the USB drive again 0.197
And I read the content of the test FS 0.618
Then patterns cover at least 99% of the test FS size in the guest's memory 3.008 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.460
Then I find very few patterns in the guest's memory after 3 seconds 5.776 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
After features/support/hooks.rb:339 1.147
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.930
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 6.637
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.325
Then I find very few patterns in the guest's memory 2.681 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.172
Then patterns cover at least 99% of the test FS size in the guest's memory 2.818 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 5.597 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
# read cache
When I mount the USB drive again 4.250
And I read the content of the test FS 0.323
Then patterns cover at least 99% of the test FS size in the guest's memory 2.721 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 6.036 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 0.910
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.476
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 19.128
And I prepare Tails for memory erasure tests 0.345
When I fill a 128 MiB file with a known pattern on the root filesystem 13.126
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.620
Then patterns cover at least 128 MiB in the guest's memory 2.214 
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 21.036 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
After features/support/hooks.rb:339 3.817
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:38.679
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 4:6.740
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 10.470
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.186 
Pattern coverage: 0.000% (0 MiB out of 1429 MiB reference memory)
After features/support/hooks.rb:339 3.538
After features/support/hooks.rb:108 0.032