Project Number Date
test_Tails_ISO_stable 6475 29 Jun 2026, 11:38

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 7:50.914 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
17.448
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 6.740
And I prepare Tails for memory erasure tests 0.356
When I start a process allocating 128 MiB of memory with a known pattern 1.178
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.027 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.174
Then I find very few patterns in the guest's memory after 5 seconds 6.971 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:339 0.855
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.715
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 6.879
And I prepare Tails for memory erasure tests 0.341
And I find very few patterns in the guest's memory 1.695 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.463
Then patterns cover at least 99% of the test FS size in the guest's memory 2.020 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.272
Then I find very few patterns in the guest's memory after 3 seconds 5.040 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:339 1.201
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.571
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.637
And I prepare Tails for memory erasure tests 0.342
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.147
Then I find very few patterns in the guest's memory 1.737 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.423
Then patterns cover at least 75% of the test FS size in the guest's memory 2.074 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.716
Then I find very few patterns in the guest's memory after 3 seconds 4.880 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.450
Then patterns cover at least 99% of the test FS size in the guest's memory 1.944 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.320
Then I find very few patterns in the guest's memory after 3 seconds 4.725 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:339 0.773
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
55.796
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 6.712
And I prepare Tails for memory erasure tests 0.376
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.927
Then I find very few patterns in the guest's memory 1.591 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.180
Then patterns cover at least 99% of the test FS size in the guest's memory 1.767 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.477
Then I find very few patterns in the guest's memory after 3 seconds 4.839 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# read cache
When I mount the USB drive again 3.641
And I read the content of the test FS 0.322
Then patterns cover at least 99% of the test FS size in the guest's memory 1.913 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.448
Then I find very few patterns in the guest's memory after 3 seconds 4.598 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:339 0.986
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.908
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.509
And I prepare Tails for memory erasure tests 0.597
When I fill a 128 MiB file with a known pattern on the root filesystem 29.049
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.771
Then patterns cover at least 128 MiB in the guest's memory 1.481 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.489 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:339 3.662
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:48.473
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 4:1.390
And I prepare Tails for memory erasure tests 0.349
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.642
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 21.081 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:339 3.792
After features/support/hooks.rb:108 0.021