Project Number Date
test_Tails_ISO_stable 6652 09 Sep 2026, 17:33

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 8:1.943 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
21.252
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 6.832
And I prepare Tails for memory erasure tests 0.446
When I start a process allocating 128 MiB of memory with a known pattern 2.269
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.313 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.202
Then I find very few patterns in the guest's memory after 5 seconds 8.187 
Pattern coverage: 0.000% (0 MiB out of 1420 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
21.416
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 6.457
And I prepare Tails for memory erasure tests 0.353
And I find very few patterns in the guest's memory 2.870 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.417
Then patterns cover at least 99% of the test FS size in the guest's memory 3.091 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.364
Then I find very few patterns in the guest's memory after 3 seconds 6.861 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
After features/support/hooks.rb:339 0.911
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
39.537
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 6.604
And I prepare Tails for memory erasure tests 0.351
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.397
Then I find very few patterns in the guest's memory 2.851 
Pattern coverage: 0.000% (0 MiB out of 1428 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.608
Then patterns cover at least 75% of the test FS size in the guest's memory 3.592 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.779
Then I find very few patterns in the guest's memory after 3 seconds 6.382 
Pattern coverage: 0.000% (0 MiB out of 1428 MiB reference memory)
# read cache
When I mount the USB drive again 0.201
And I read the content of the test FS 0.588
Then patterns cover at least 99% of the test FS size in the guest's memory 2.954 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 6.721 
Pattern coverage: 0.000% (0 MiB out of 1428 MiB reference memory)
After features/support/hooks.rb:339 0.790
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.824
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 6.684
And I prepare Tails for memory erasure tests 0.374
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.014
Then I find very few patterns in the guest's memory 2.802 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.255
Then patterns cover at least 99% of the test FS size in the guest's memory 3.040 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.523
Then I find very few patterns in the guest's memory after 3 seconds 5.703 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
# read cache
When I mount the USB drive again 3.672
And I read the content of the test FS 0.346
Then patterns cover at least 99% of the test FS size in the guest's memory 3.267 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory after 3 seconds 5.644 
Pattern coverage: 0.000% (0 MiB out of 1410 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
43.964
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 6.315
And I prepare Tails for memory erasure tests 0.340
When I fill a 128 MiB file with a known pattern on the root filesystem 12.354
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.756
Then patterns cover at least 128 MiB in the guest's memory 2.356 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.833 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
After features/support/hooks.rb:339 3.602
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:50.948
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 4:19.632
And I prepare Tails for memory erasure tests 0.289
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.692
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.329 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 3.863
After features/support/hooks.rb:108 0.046