Project Number Date
test_Tails_ISO_stable 6176 27 Feb 2026, 07:59

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 7:17.865 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
19.773
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.602
And I prepare Tails for memory erasure tests 0.330
When I start a process allocating 128 MiB of memory with a known pattern 3.692
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.087 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.332
Then I find very few patterns in the guest's memory after 5 seconds 6.728 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:331 1.142
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.006
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.513
And I prepare Tails for memory erasure tests 0.374
And I find very few patterns in the guest's memory 1.788 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.682
Then patterns cover at least 99% of the test FS size in the guest's memory 2.012 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.847
Then I find very few patterns in the guest's memory after 3 seconds 4.788 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:331 0.908
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.569
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.411
And I prepare Tails for memory erasure tests 0.365
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.188
Then I find very few patterns in the guest's memory 1.843 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.010
Then patterns cover at least 75% of the test FS size in the guest's memory 2.031 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.055
Then I find very few patterns in the guest's memory after 3 seconds 4.671 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.377
Then patterns cover at least 99% of the test FS size in the guest's memory 1.893 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.571
Then I find very few patterns in the guest's memory after 3 seconds 4.991 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 0.727
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:11.714
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.522
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.782
Then I find very few patterns in the guest's memory 1.704 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.892
Then patterns cover at least 99% of the test FS size in the guest's memory 1.859 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.659
Then I find very few patterns in the guest's memory after 3 seconds 4.573 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
# read cache
When I mount the USB drive again 15.158
And I read the content of the test FS 0.299
Then patterns cover at least 99% of the test FS size in the guest's memory 1.774 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.498
Then I find very few patterns in the guest's memory after 3 seconds 4.596 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:331 0.949
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.770
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.441
And I prepare Tails for memory erasure tests 0.310
When I fill a 128 MiB file with a known pattern on the root filesystem 13.519
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.636
Then patterns cover at least 128 MiB in the guest's memory 1.388 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.468 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:331 3.850
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:11.030
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:39.768
And I prepare Tails for memory erasure tests 0.306
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.031
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.917 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 3.689
After features/support/hooks.rb:100 0.008