Project Number Date
test_Tails_ISO_devel 4177 19 Jan 2026, 15:30

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 7:2.800 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
17.927
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.701
And I prepare Tails for memory erasure tests 0.381
When I start a process allocating 128 MiB of memory with a known pattern 2.195
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.888 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.150
Then I find very few patterns in the guest's memory after 5 seconds 6.609 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 0.792
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.118
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 6.479
And I prepare Tails for memory erasure tests 0.387
And I find very few patterns in the guest's memory 1.751 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.059
Then patterns cover at least 99% of the test FS size in the guest's memory 1.956 
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 4.734 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:331 0.599
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.729
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.017
Given I have started Tails from DVD without network and logged in 6.507
And I prepare Tails for memory erasure tests 0.352
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.137
Then I find very few patterns in the guest's memory 1.817 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.445
Then patterns cover at least 75% of the test FS size in the guest's memory 1.966 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.015
Then I find very few patterns in the guest's memory after 3 seconds 4.977 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.428
Then patterns cover at least 99% of the test FS size in the guest's memory 1.866 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.270
Then I find very few patterns in the guest's memory after 3 seconds 4.790 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 0.987
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.002
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.448
And I prepare Tails for memory erasure tests 0.339
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.943
Then I find very few patterns in the guest's memory 1.775 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.968
Then patterns cover at least 99% of the test FS size in the guest's memory 1.774 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.484
Then I find very few patterns in the guest's memory after 3 seconds 4.648 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 3.587
And I read the content of the test FS 0.281
Then patterns cover at least 99% of the test FS size in the guest's memory 1.769 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.374
Then I find very few patterns in the guest's memory after 3 seconds 4.606 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 0.734
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.810
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 6.508
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the root filesystem 13.515
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.496
Then patterns cover at least 128 MiB in the guest's memory 1.429 
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 20.491 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 3.769
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:17.211
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 3:45.799
And I prepare Tails for memory erasure tests 0.264
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.244
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.898 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 3.497
After features/support/hooks.rb:100 0.008