Project Number Date
test_Tails_ISO_stable 6418 02 Jun 2026, 18:22

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 7:31.312 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
16.873
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.429
And I prepare Tails for memory erasure tests 0.370
When I start a process allocating 128 MiB of memory with a known pattern 1.233
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.003 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.165
Then I find very few patterns in the guest's memory after 5 seconds 6.669 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:335 0.817
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.223
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.375
And I prepare Tails for memory erasure tests 0.327
And I find very few patterns in the guest's memory 1.840 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.645
Then patterns cover at least 99% of the test FS size in the guest's memory 1.979 
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 4.681 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:335 0.984
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.295
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.356
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.231
Then I find very few patterns in the guest's memory 1.875 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.406
Then patterns cover at least 75% of the test FS size in the guest's memory 1.965 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.721
Then I find very few patterns in the guest's memory after 3 seconds 4.681 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 0.147
And I read the content of the test FS 0.381
Then patterns cover at least 99% of the test FS size in the guest's memory 1.887 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.400
Then I find very few patterns in the guest's memory after 3 seconds 4.881 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:335 0.944
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.548
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.601
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.638
Then I find very few patterns in the guest's memory 1.652 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.456
Then patterns cover at least 99% of the test FS size in the guest's memory 1.853 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.524
Then I find very few patterns in the guest's memory after 3 seconds 4.618 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 3.758
And I read the content of the test FS 0.289
Then patterns cover at least 99% of the test FS size in the guest's memory 1.798 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 4.534 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:335 0.803
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.885
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.548
And I prepare Tails for memory erasure tests 0.315
When I fill a 128 MiB file with a known pattern on the root filesystem 26.220
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.893
Then patterns cover at least 128 MiB in the guest's memory 1.413 
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 20.486 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:335 3.705
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:32.485
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.091
And I prepare Tails for memory erasure tests 0.279
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.258
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.851 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:335 3.764
After features/support/hooks.rb:104 0.018