Project Number Date
test_Tails_ISO_devel 4120 13 Dec 2025, 12:29

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 13:2.728 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
46.750
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.718
And I prepare Tails for memory erasure tests 0.391
When I start a process allocating 128 MiB of memory with a known pattern 2.310
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.915 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.243
Then I find very few patterns in the guest's memory after 5 seconds 19.171 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 0.797
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.021
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 8.588
And I prepare Tails for memory erasure tests 0.572
And I find very few patterns in the guest's memory 14.487 
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 2.321
Then patterns cover at least 99% of the test FS size in the guest's memory 14.828 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.458
Then I find very few patterns in the guest's memory after 3 seconds 18.765 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.996
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:49.567
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 9.915
And I prepare Tails for memory erasure tests 0.470
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.726
Then I find very few patterns in the guest's memory 14.329 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.816
Then patterns cover at least 75% of the test FS size in the guest's memory 16.413 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.922
Then I find very few patterns in the guest's memory after 3 seconds 17.665 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.263
And I read the content of the test FS 0.833
Then patterns cover at least 99% of the test FS size in the guest's memory 18.725 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.543
Then I find very few patterns in the guest's memory after 3 seconds 19.940 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.185
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:7.466
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 9.384
And I prepare Tails for memory erasure tests 0.410
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.408
Then I find very few patterns in the guest's memory 13.260 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.966
Then patterns cover at least 99% of the test FS size in the guest's memory 14.659 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.784
Then I find very few patterns in the guest's memory after 3 seconds 15.482 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 5.260
And I read the content of the test FS 0.679
Then patterns cover at least 99% of the test FS size in the guest's memory 14.227 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.620
Then I find very few patterns in the guest's memory after 3 seconds 16.322 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 1.230
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.013
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.542
And I prepare Tails for memory erasure tests 0.430
When I fill a 128 MiB file with a known pattern on the root filesystem 10.825
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.881
Then patterns cover at least 128 MiB in the guest's memory 10.087 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.235 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.807
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:22.908
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:47.928
And I prepare Tails for memory erasure tests 0.442
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.919
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 23.604 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 3.832
After features/support/hooks.rb:100 0.020