Project Number Date
test_Tails_ISO_devel 4240 18 Feb 2026, 12:41

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 13:55.644 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
47.029
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.557
And I prepare Tails for memory erasure tests 0.428
When I start a process allocating 128 MiB of memory with a known pattern 2.270
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.863 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.218
Then I find very few patterns in the guest's memory after 5 seconds 19.689 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.922
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.308
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.287
And I prepare Tails for memory erasure tests 0.432
And I find very few patterns in the guest's memory 14.881 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.164
Then patterns cover at least 99% of the test FS size in the guest's memory 15.541 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.376
Then I find very few patterns in the guest's memory after 3 seconds 17.623 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.653
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:52.941
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 11.513
And I prepare Tails for memory erasure tests 0.670
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.213
Then I find very few patterns in the guest's memory 17.914 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.402
Then patterns cover at least 75% of the test FS size in the guest's memory 24.979 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.642
Then I find very few patterns in the guest's memory after 3 seconds 34.104 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 0.198
And I read the content of the test FS 0.753
Then patterns cover at least 99% of the test FS size in the guest's memory 39.534 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.306
Then I find very few patterns in the guest's memory after 3 seconds 28.706 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.690
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:0.517
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.420
And I prepare Tails for memory erasure tests 0.416
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.063
Then I find very few patterns in the guest's memory 13.042 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.894
Then patterns cover at least 99% of the test FS size in the guest's memory 13.320 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.628
Then I find very few patterns in the guest's memory after 3 seconds 15.560 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# read cache
When I mount the USB drive again 4.530
And I read the content of the test FS 0.477
Then patterns cover at least 99% of the test FS size in the guest's memory 15.036 
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 15.589 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 1.141
After features/support/hooks.rb:100 0.003
Tags: @product @slow @not_release_blocker
57.278
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.486
And I prepare Tails for memory erasure tests 0.406
When I fill a 128 MiB file with a known pattern on the root filesystem 12.402
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.339
Then patterns cover at least 128 MiB in the guest's memory 10.721 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 22.905 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 3.991
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:16.569
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:41.800
And I prepare Tails for memory erasure tests 0.354
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.107
When I trigger shutdown 0.046
Then I find very few patterns in the guest's memory after 20 seconds 25.259 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 3.584
After features/support/hooks.rb:100 0.045