Project Number Date
test_Tails_ISO_devel 4375 05 May 2026, 11:00

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 7:18.915 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
17.162
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 6.682
And I prepare Tails for memory erasure tests 0.364
When I start a process allocating 128 MiB of memory with a known pattern 1.163
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.962 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.204
Then I find very few patterns in the guest's memory after 5 seconds 6.785 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.593
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.315
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 6.547
And I prepare Tails for memory erasure tests 0.343
And I find very few patterns in the guest's memory 1.719 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.575
Then patterns cover at least 99% of the test FS size in the guest's memory 1.914 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.312
Then I find very few patterns in the guest's memory after 3 seconds 4.901 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.928
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.769
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 6.675
And I prepare Tails for memory erasure tests 0.377
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.289
Then I find very few patterns in the guest's memory 1.769 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.567
Then patterns cover at least 75% of the test FS size in the guest's memory 2.043 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.672
Then I find very few patterns in the guest's memory after 3 seconds 4.668 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 0.185
And I read the content of the test FS 0.452
Then patterns cover at least 99% of the test FS size in the guest's memory 2.040 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.353
Then I find very few patterns in the guest's memory after 3 seconds 4.672 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.961
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.158
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 6.451
And I prepare Tails for memory erasure tests 0.303
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.878
Then I find very few patterns in the guest's memory 1.687 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.361
Then patterns cover at least 99% of the test FS size in the guest's memory 1.832 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 4.649 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 4.213
And I read the content of the test FS 0.288
Then patterns cover at least 99% of the test FS size in the guest's memory 1.903 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.431
Then I find very few patterns in the guest's memory after 3 seconds 4.656 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.602
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.833
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 6.470
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the root filesystem 21.142
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.853
Then patterns cover at least 128 MiB in the guest's memory 1.522 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.500 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 3.744
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:23.675
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 3:46.478
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the persistent filesystem 15.899
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.984 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:331 3.563
After features/support/hooks.rb:100 0.009