Project Number Date
test_Tails_ISO_stable 6696 28 Sep 2026, 12:14

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 7:42.845 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
20.586
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 6.438
And I prepare Tails for memory erasure tests 0.377
When I start a process allocating 128 MiB of memory with a known pattern 2.291
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.951 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.826
Then I find very few patterns in the guest's memory after 5 seconds 7.702 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.671
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.462
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 6.634
And I prepare Tails for memory erasure tests 0.405
And I find very few patterns in the guest's memory 2.464 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.609
Then patterns cover at least 99% of the test FS size in the guest's memory 3.033 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.429
Then I find very few patterns in the guest's memory after 3 seconds 5.884 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
After features/support/hooks.rb:339 0.803
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.527
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 6.516
And I prepare Tails for memory erasure tests 0.421
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.579
Then I find very few patterns in the guest's memory 2.789 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.580
Then patterns cover at least 75% of the test FS size in the guest's memory 3.027 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.675
Then I find very few patterns in the guest's memory after 3 seconds 5.979 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# read cache
When I mount the USB drive again 0.228
And I read the content of the test FS 0.549
Then patterns cover at least 99% of the test FS size in the guest's memory 3.121 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.425
Then I find very few patterns in the guest's memory after 3 seconds 5.631 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 0.771
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.656
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 6.523
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.692
Then I find very few patterns in the guest's memory 2.573 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.108
Then patterns cover at least 99% of the test FS size in the guest's memory 2.871 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 5.729 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
# read cache
When I mount the USB drive again 3.849
And I read the content of the test FS 0.357
Then patterns cover at least 99% of the test FS size in the guest's memory 3.880 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.458
Then I find very few patterns in the guest's memory after 3 seconds 5.705 
Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)
After features/support/hooks.rb:339 0.636
After features/support/hooks.rb:108 0.007
Tags: @product @slow @not_release_blocker
45.010
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.015
Given I have started Tails from DVD without network and logged in 6.744
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the root filesystem 12.906
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.720
Then patterns cover at least 128 MiB in the guest's memory 2.372 
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 20.866 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 3.574
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.600
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:3.500
And I prepare Tails for memory erasure tests 0.272
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.583
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.238 
Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)
After features/support/hooks.rb:339 3.716
After features/support/hooks.rb:108 0.013