Project Number Date
test_Tails_ISO_stable 6295 14 Apr 2026, 12:56

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 7:52.595 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
18.147
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 6.992
And I prepare Tails for memory erasure tests 0.430
When I start a process allocating 128 MiB of memory with a known pattern 1.224
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.254 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.278
Then I find very few patterns in the guest's memory after 5 seconds 6.967 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.960
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.201
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 7.216
And I prepare Tails for memory erasure tests 0.371
And I find very few patterns in the guest's memory 2.114 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.501
Then patterns cover at least 99% of the test FS size in the guest's memory 2.393 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.447
Then I find very few patterns in the guest's memory after 3 seconds 5.157 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.186
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.465
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 7.008
And I prepare Tails for memory erasure tests 0.399
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.841
Then I find very few patterns in the guest's memory 2.174 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.468
Then patterns cover at least 75% of the test FS size in the guest's memory 2.376 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.845
Then I find very few patterns in the guest's memory after 3 seconds 4.894 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.521
Then patterns cover at least 99% of the test FS size in the guest's memory 2.439 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.410
Then I find very few patterns in the guest's memory after 3 seconds 4.900 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.948
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.501
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 6.792
And I prepare Tails for memory erasure tests 0.328
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.546
Then I find very few patterns in the guest's memory 2.254 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.575
Then patterns cover at least 99% of the test FS size in the guest's memory 1.979 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.600
Then I find very few patterns in the guest's memory after 3 seconds 4.766 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 4.718
And I read the content of the test FS 0.353
Then patterns cover at least 99% of the test FS size in the guest's memory 1.963 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.603
Then I find very few patterns in the guest's memory after 3 seconds 5.018 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 0.994
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.477
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 6.804
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 13.702
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 5.388
Then patterns cover at least 128 MiB in the guest's memory 1.675 
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 20.500 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:331 3.762
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:45.800
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:12.884
And I prepare Tails for memory erasure tests 0.358
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.446
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.098 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 3.466
After features/support/hooks.rb:100 0.011