Project Number Date
test_Tails_ISO_devel 4229 12 Feb 2026, 11:56

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 7:17.569 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
18.617
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 6.664
And I prepare Tails for memory erasure tests 0.554
When I start a process allocating 128 MiB of memory with a known pattern 2.231
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.207 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.208
Then I find very few patterns in the guest's memory after 5 seconds 6.750 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.606
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.047
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 6.426
And I prepare Tails for memory erasure tests 0.337
And I find very few patterns in the guest's memory 2.356 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.067
Then patterns cover at least 99% of the test FS size in the guest's memory 2.244 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.656
Then I find very few patterns in the guest's memory after 3 seconds 4.958 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.721
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.557
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 6.476
And I prepare Tails for memory erasure tests 0.368
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.760
Then I find very few patterns in the guest's memory 2.005 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.728
Then patterns cover at least 75% of the test FS size in the guest's memory 1.972 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.037
Then I find very few patterns in the guest's memory after 3 seconds 4.918 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# read cache
When I mount the USB drive again 0.161
And I read the content of the test FS 0.449
Then patterns cover at least 99% of the test FS size in the guest's memory 2.266 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.275
Then I find very few patterns in the guest's memory after 3 seconds 5.136 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.880
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.540
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 6.795
And I prepare Tails for memory erasure tests 0.343
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.648
Then I find very few patterns in the guest's memory 1.765 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.065
Then patterns cover at least 99% of the test FS size in the guest's memory 1.880 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.502
Then I find very few patterns in the guest's memory after 3 seconds 4.716 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 3.296
And I read the content of the test FS 0.333
Then patterns cover at least 99% of the test FS size in the guest's memory 1.854 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 4.849 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.849
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.603
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 7.017
And I prepare Tails for memory erasure tests 0.340
When I fill a 128 MiB file with a known pattern on the root filesystem 13.251
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.828
Then patterns cover at least 128 MiB in the guest's memory 1.594 
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 20.563 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 3.487
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:26.203
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 3:55.401
And I prepare Tails for memory erasure tests 0.355
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.559
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.881 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 3.518
After features/support/hooks.rb:100 0.009