Project Number Date
test_Tails_ISO_devel 4173 17 Jan 2026, 08:54

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 13:16.412 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
48.978
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 8.012
And I prepare Tails for memory erasure tests 0.369
When I start a process allocating 128 MiB of memory with a known pattern 1.156
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.869 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.139
Then I find very few patterns in the guest's memory after 5 seconds 23.431 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.967
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:38.977
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 8.354
And I prepare Tails for memory erasure tests 0.404
And I find very few patterns in the guest's memory 24.397 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.599
Then patterns cover at least 99% of the test FS size in the guest's memory 34.949 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.110
Then I find very few patterns in the guest's memory after 3 seconds 30.162 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.899
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:50.626
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 7.654
And I prepare Tails for memory erasure tests 0.413
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.853
Then I find very few patterns in the guest's memory 24.185 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.109
Then patterns cover at least 75% of the test FS size in the guest's memory 15.933 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.229
Then I find very few patterns in the guest's memory after 3 seconds 18.150 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.205
And I read the content of the test FS 0.503
Then patterns cover at least 99% of the test FS size in the guest's memory 16.559 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.189
Then I find very few patterns in the guest's memory after 3 seconds 18.639 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.894
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:1.031
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 8.280
And I prepare Tails for memory erasure tests 0.463
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.698
Then I find very few patterns in the guest's memory 13.289 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.377
Then patterns cover at least 99% of the test FS size in the guest's memory 14.808 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 19.984 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 2.591
And I read the content of the test FS 0.536
Then patterns cover at least 99% of the test FS size in the guest's memory 16.850 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.334
Then I find very few patterns in the guest's memory after 3 seconds 16.348 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.942
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.735
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 7.705
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the root filesystem 9.493
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.332
Then patterns cover at least 128 MiB in the guest's memory 9.973 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.814 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 3.996
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:6.062
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 5:33.521
And I prepare Tails for memory erasure tests 0.407
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.010
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 23.110 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:331 3.655
After features/support/hooks.rb:100 0.016