Project Number Date
test_Tails_ISO_stable 6076 18 Jan 2026, 11:41

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 6:52.857 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
18.790
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 6.543
And I prepare Tails for memory erasure tests 0.317
When I start a process allocating 128 MiB of memory with a known pattern 2.205
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.015 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.871
Then I find very few patterns in the guest's memory after 5 seconds 6.837 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:331 0.945
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.925
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 6.441
And I prepare Tails for memory erasure tests 0.307
And I find very few patterns in the guest's memory 1.687 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.913
Then patterns cover at least 99% of the test FS size in the guest's memory 1.981 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.749
Then I find very few patterns in the guest's memory after 3 seconds 4.844 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 1.079
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.109
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 6.519
And I prepare Tails for memory erasure tests 0.283
When I plug and mount a 128 MiB USB drive with a vfat filesystem 4.869
Then I find very few patterns in the guest's memory 1.817 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.544
Then patterns cover at least 75% of the test FS size in the guest's memory 2.055 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.963
Then I find very few patterns in the guest's memory after 3 seconds 4.724 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 0.155
And I read the content of the test FS 0.448
Then patterns cover at least 99% of the test FS size in the guest's memory 1.811 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.260
Then I find very few patterns in the guest's memory after 3 seconds 4.654 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:331 0.654
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.347
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 6.421
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" 27.402
Then I find very few patterns in the guest's memory 1.611 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.927
Then patterns cover at least 99% of the test FS size in the guest's memory 1.708 
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 4.566 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 3.940
And I read the content of the test FS 0.286
Then patterns cover at least 99% of the test FS size in the guest's memory 1.657 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 4.589 
Pattern coverage: 0.000% (0 MiB out of 1476 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
43.943
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 6.419
And I prepare Tails for memory erasure tests 0.322
When I fill a 128 MiB file with a known pattern on the root filesystem 13.715
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.544
Then patterns cover at least 128 MiB in the guest's memory 1.397 
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 20.536 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:331 3.607
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:6.740
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 3:34.585
And I prepare Tails for memory erasure tests 0.280
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.037
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.832 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.448
After features/support/hooks.rb:100 0.033