Project Number Date
test_Tails_ISO_stable 6440 11 Jun 2026, 13:39

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 7:36.129 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
17.299
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.557
And I prepare Tails for memory erasure tests 0.410
When I start a process allocating 128 MiB of memory with a known pattern 1.120
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.122 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.211
Then I find very few patterns in the guest's memory after 5 seconds 6.876 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:335 1.001
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.768
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.600
And I prepare Tails for memory erasure tests 0.332
And I find very few patterns in the guest's memory 1.792 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.682
Then patterns cover at least 99% of the test FS size in the guest's memory 2.178 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.358
Then I find very few patterns in the guest's memory after 3 seconds 4.823 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:335 1.078
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.639
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.844
And I prepare Tails for memory erasure tests 0.356
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.360
Then I find very few patterns in the guest's memory 1.988 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.773
Then patterns cover at least 75% of the test FS size in the guest's memory 2.307 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.770
Then I find very few patterns in the guest's memory after 3 seconds 4.894 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.435
Then patterns cover at least 99% of the test FS size in the guest's memory 2.137 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 5.159 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:335 0.744
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
52.428
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.811
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.141
Then I find very few patterns in the guest's memory 1.775 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.341
Then patterns cover at least 99% of the test FS size in the guest's memory 1.956 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.507
Then I find very few patterns in the guest's memory after 3 seconds 4.761 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 3.386
And I read the content of the test FS 0.334
Then patterns cover at least 99% of the test FS size in the guest's memory 1.939 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.463
Then I find very few patterns in the guest's memory after 3 seconds 4.653 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:335 0.903
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.231
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.925
And I prepare Tails for memory erasure tests 0.368
When I fill a 128 MiB file with a known pattern on the root filesystem 24.979
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.974
Then patterns cover at least 128 MiB in the guest's memory 1.473 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.503 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:335 3.828
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:38.762
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.009
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:59.659
And I prepare Tails for memory erasure tests 0.428
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.750
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.918 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:335 3.586
After features/support/hooks.rb:104 0.011