Project Number Date
test_Tails_ISO_stable 6117 04 Feb 2026, 08:03

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 7:35.842 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
18.626
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 6.763
And I prepare Tails for memory erasure tests 0.524
When I start a process allocating 128 MiB of memory with a known pattern 2.340
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.998 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.287
Then I find very few patterns in the guest's memory after 5 seconds 6.711 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.621
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.853
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 6.466
And I prepare Tails for memory erasure tests 0.817
And I find very few patterns in the guest's memory 1.886 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.050
Then patterns cover at least 99% of the test FS size in the guest's memory 2.097 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.828
Then I find very few patterns in the guest's memory after 3 seconds 4.706 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 1.000
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
47.165
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 18.942
And I prepare Tails for memory erasure tests 0.427
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.114
Then I find very few patterns in the guest's memory 1.876 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.942
Then patterns cover at least 75% of the test FS size in the guest's memory 2.226 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 3.095
Then I find very few patterns in the guest's memory after 3 seconds 4.711 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.255
And I read the content of the test FS 0.418
Then patterns cover at least 99% of the test FS size in the guest's memory 1.886 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.263
Then I find very few patterns in the guest's memory after 3 seconds 5.003 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.324
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
58.775
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 6.795
And I prepare Tails for memory erasure tests 0.496
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.488
Then I find very few patterns in the guest's memory 1.685 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.328
Then patterns cover at least 99% of the test FS size in the guest's memory 1.862 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.685
Then I find very few patterns in the guest's memory after 3 seconds 4.817 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 8.225
And I read the content of the test FS 0.259
Then patterns cover at least 99% of the test FS size in the guest's memory 1.787 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.457
Then I find very few patterns in the guest's memory after 3 seconds 4.886 
Pattern coverage: 0.000% (0 MiB out of 1486 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
44.890
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 6.880
And I prepare Tails for memory erasure tests 0.494
When I fill a 128 MiB file with a known pattern on the root filesystem 13.387
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.958
Then patterns cover at least 128 MiB in the guest's memory 1.630 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.533 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 3.699
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:27.529
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 3:56.128
And I prepare Tails for memory erasure tests 0.364
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.097
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.934 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 3.833
After features/support/hooks.rb:100 0.010