Project Number Date
test_Tails_ISO_devel 4085 24 Nov 2025, 12:20

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 13:22.138 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
48.384
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 7.945
And I prepare Tails for memory erasure tests 0.400
When I start a process allocating 128 MiB of memory with a known pattern 1.237
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.611 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.146
Then I find very few patterns in the guest's memory after 5 seconds 24.042 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.956
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:3.793
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 8.212
And I prepare Tails for memory erasure tests 0.396
And I find very few patterns in the guest's memory 17.083 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.664
Then patterns cover at least 99% of the test FS size in the guest's memory 20.456 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.133
Then I find very few patterns in the guest's memory after 3 seconds 16.846 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.649
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:40.581
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 8.071
And I prepare Tails for memory erasure tests 0.370
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.161
Then I find very few patterns in the guest's memory 13.793 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.030
Then patterns cover at least 75% of the test FS size in the guest's memory 15.567 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.290
Then I find very few patterns in the guest's memory after 3 seconds 23.137 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 0.177
And I read the content of the test FS 0.652
Then patterns cover at least 99% of the test FS size in the guest's memory 14.407 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.134
Then I find very few patterns in the guest's memory after 3 seconds 16.787 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.794
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:51.445
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 8.023
And I prepare Tails for memory erasure tests 0.361
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.906
Then I find very few patterns in the guest's memory 13.502 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.276
Then patterns cover at least 99% of the test FS size in the guest's memory 13.742 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.547
Then I find very few patterns in the guest's memory after 3 seconds 15.723 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 2.404
And I read the content of the test FS 0.447
Then patterns cover at least 99% of the test FS size in the guest's memory 13.914 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.377
Then I find very few patterns in the guest's memory after 3 seconds 15.218 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.962
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.144
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 8.451
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the root filesystem 9.147
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.305
Then patterns cover at least 128 MiB in the guest's memory 9.666 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 24.181 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 3.691
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:5.789
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:29.311
And I prepare Tails for memory erasure tests 0.366
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.760
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 27.340 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 4.004
After features/support/hooks.rb:100 0.018