Project Number Date
test_Tails_ISO_21472-circumvention-settings-2 11 06 Apr 2026, 02:34

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 8:5.365 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
21.112
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 6.946
And I prepare Tails for memory erasure tests 0.306
When I start a process allocating 128 MiB of memory with a known pattern 4.469
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.134 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.514
Then I find very few patterns in the guest's memory after 5 seconds 6.740 
Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)
After features/support/hooks.rb:331 0.765
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
29.696
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 19.147
And I prepare Tails for memory erasure tests 0.376
And I find very few patterns in the guest's memory 1.695 
Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.425
Then patterns cover at least 99% of the test FS size in the guest's memory 1.931 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.392
Then I find very few patterns in the guest's memory after 3 seconds 4.727 
Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)
After features/support/hooks.rb:331 1.179
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.645
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 7.461
And I prepare Tails for memory erasure tests 0.399
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.302
Then I find very few patterns in the guest's memory 1.807 
Pattern coverage: 0.000% (0 MiB out of 1448 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.110
Then patterns cover at least 75% of the test FS size in the guest's memory 2.024 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.866
Then I find very few patterns in the guest's memory after 3 seconds 4.810 
Pattern coverage: 0.000% (0 MiB out of 1448 MiB reference memory)
# read cache
When I mount the USB drive again 0.151
And I read the content of the test FS 0.480
Then patterns cover at least 99% of the test FS size in the guest's memory 2.014 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.568
Then I find very few patterns in the guest's memory after 3 seconds 4.647 
Pattern coverage: 0.000% (0 MiB out of 1448 MiB reference memory)
After features/support/hooks.rb:331 0.728
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:15.642
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 7.445
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.875
Then I find very few patterns in the guest's memory 1.754 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.735
Then patterns cover at least 99% of the test FS size in the guest's memory 1.779 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.876
Then I find very few patterns in the guest's memory after 3 seconds 4.514 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
# read cache
When I mount the USB drive again 8.964
And I read the content of the test FS 0.268
Then patterns cover at least 99% of the test FS size in the guest's memory 1.817 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.646
Then I find very few patterns in the guest's memory after 3 seconds 4.635 
Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)
After features/support/hooks.rb:331 0.704
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:11.929
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 19.514
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the root filesystem 12.417
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 17.686
Then patterns cover at least 128 MiB in the guest's memory 1.439 
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 20.479 
Pattern coverage: 0.000% (0 MiB out of 1447 MiB reference memory)
After features/support/hooks.rb:331 3.787
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:13.337
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 3:42.057
And I prepare Tails for memory erasure tests 0.374
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.070
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.830 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 3.388
After features/support/hooks.rb:100 0.026