Project Number Date
test_Tails_ISO_devel 4422 30 May 2026, 11:09

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 7:45.909 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
17.248
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 6.633
And I prepare Tails for memory erasure tests 0.358
When I start a process allocating 128 MiB of memory with a known pattern 1.182
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.987 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.186
Then I find very few patterns in the guest's memory after 5 seconds 6.899 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:335 1.027
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.784
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.860
And I prepare Tails for memory erasure tests 0.318
And I find very few patterns in the guest's memory 1.665 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.615
Then patterns cover at least 99% of the test FS size in the guest's memory 1.872 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.352
Then I find very few patterns in the guest's memory after 3 seconds 5.100 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:335 0.982
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.796
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 6.699
And I prepare Tails for memory erasure tests 0.441
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.372
Then I find very few patterns in the guest's memory 1.848 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.671
Then patterns cover at least 75% of the test FS size in the guest's memory 2.500 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.743
Then I find very few patterns in the guest's memory after 3 seconds 4.777 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
# read cache
When I mount the USB drive again 0.208
And I read the content of the test FS 0.460
Then patterns cover at least 99% of the test FS size in the guest's memory 2.024 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.334
Then I find very few patterns in the guest's memory after 3 seconds 4.713 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:335 0.937
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.762
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 6.514
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.225
Then I find very few patterns in the guest's memory 1.651 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.381
Then patterns cover at least 99% of the test FS size in the guest's memory 1.836 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.574
Then I find very few patterns in the guest's memory after 3 seconds 4.797 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
# read cache
When I mount the USB drive again 4.172
And I read the content of the test FS 0.356
Then patterns cover at least 99% of the test FS size in the guest's memory 1.857 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 4.590 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:335 0.940
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
53.640
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.004
Given I have started Tails from DVD without network and logged in 6.646
And I prepare Tails for memory erasure tests 0.413
When I fill a 128 MiB file with a known pattern on the root filesystem 22.666
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.848
Then patterns cover at least 128 MiB in the guest's memory 1.543 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.515 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:335 3.431
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:46.676
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:6.101
And I prepare Tails for memory erasure tests 0.346
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.246
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.976 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:335 3.645
After features/support/hooks.rb:104 0.009