Project Number Date
test_Tails_ISO_devel 4469 26 Jun 2026, 11:20

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 8:1.586 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
17.427
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 6.748
And I prepare Tails for memory erasure tests 0.393
When I start a process allocating 128 MiB of memory with a known pattern 1.155
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.970 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.188
Then I find very few patterns in the guest's memory after 5 seconds 6.969 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:339 0.779
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.568
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 6.612
And I prepare Tails for memory erasure tests 0.424
And I find very few patterns in the guest's memory 1.753 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.593
Then patterns cover at least 99% of the test FS size in the guest's memory 1.983 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.343
Then I find very few patterns in the guest's memory after 3 seconds 4.856 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:339 0.956
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.401
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 6.797
And I prepare Tails for memory erasure tests 0.399
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.359
Then I find very few patterns in the guest's memory 1.741 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.624
Then patterns cover at least 75% of the test FS size in the guest's memory 2.071 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.787
Then I find very few patterns in the guest's memory after 3 seconds 4.884 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
# read cache
When I mount the USB drive again 0.133
And I read the content of the test FS 0.467
Then patterns cover at least 99% of the test FS size in the guest's memory 2.032 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.368
Then I find very few patterns in the guest's memory after 3 seconds 4.733 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:339 0.894
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.418
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 6.619
And I prepare Tails for memory erasure tests 0.466
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.545
Then I find very few patterns in the guest's memory 1.853 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.182
Then patterns cover at least 99% of the test FS size in the guest's memory 1.810 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.509
Then I find very few patterns in the guest's memory after 3 seconds 4.653 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# read cache
When I mount the USB drive again 4.360
And I read the content of the test FS 0.364
Then patterns cover at least 99% of the test FS size in the guest's memory 1.834 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.536
Then I find very few patterns in the guest's memory after 3 seconds 4.682 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:339 0.910
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.575
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 6.586
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the root filesystem 32.561
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.948
Then patterns cover at least 128 MiB in the guest's memory 1.521 
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 20.580 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:339 3.538
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:53.195
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 4:6.484
And I prepare Tails for memory erasure tests 0.365
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.455
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.884 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:339 3.577
After features/support/hooks.rb:108 0.010