Project Number Date
test_Tails_ISO_stable 6036 05 Jan 2026, 17:19

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 6:55.034 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
17.384
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 6.489
And I prepare Tails for memory erasure tests 0.280
When I start a process allocating 128 MiB of memory with a known pattern 1.215
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.021 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.664
Then I find very few patterns in the guest's memory after 5 seconds 6.713 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.812
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.223
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 6.329
And I prepare Tails for memory erasure tests 0.315
And I find very few patterns in the guest's memory 1.926 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.471
Then patterns cover at least 99% of the test FS size in the guest's memory 2.168 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.319
Then I find very few patterns in the guest's memory after 3 seconds 4.692 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 0.957
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.555
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 6.385
And I prepare Tails for memory erasure tests 0.298
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.157
Then I find very few patterns in the guest's memory 1.815 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.156
Then patterns cover at least 75% of the test FS size in the guest's memory 2.199 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.692
Then I find very few patterns in the guest's memory after 3 seconds 4.797 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# read cache
When I mount the USB drive again 0.157
And I read the content of the test FS 0.459
Then patterns cover at least 99% of the test FS size in the guest's memory 2.104 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.389
Then I find very few patterns in the guest's memory after 3 seconds 4.942 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 0.649
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.365
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 6.525
And I prepare Tails for memory erasure tests 0.310
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.836
Then I find very few patterns in the guest's memory 2.001 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.199
Then patterns cover at least 99% of the test FS size in the guest's memory 1.987 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory after 3 seconds 4.796 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# read cache
When I mount the USB drive again 3.725
And I read the content of the test FS 0.300
Then patterns cover at least 99% of the test FS size in the guest's memory 1.812 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 4.839 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 0.873
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.688
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 6.533
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the root filesystem 12.022
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.878
Then patterns cover at least 128 MiB in the guest's memory 1.471 
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 20.466 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 3.879
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:8.817
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 3:37.470
And I prepare Tails for memory erasure tests 0.326
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.074
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.941 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:331 3.436
After features/support/hooks.rb:100 0.009