Project Number Date
test_Tails_ISO_stable 6461 18 Jun 2026, 07:55

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 7:48.982 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
18.672
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 6.663
And I prepare Tails for memory erasure tests 0.332
When I start a process allocating 128 MiB of memory with a known pattern 2.219
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.924 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.866
Then I find very few patterns in the guest's memory after 5 seconds 6.665 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:339 0.770
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.599
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 6.835
And I prepare Tails for memory erasure tests 0.343
And I find very few patterns in the guest's memory 1.665 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.660
Then patterns cover at least 99% of the test FS size in the guest's memory 2.016 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.334
Then I find very few patterns in the guest's memory after 3 seconds 4.743 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:339 0.724
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.075
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails from DVD without network and logged in 6.937
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.503
Then I find very few patterns in the guest's memory 1.794 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.507
Then patterns cover at least 75% of the test FS size in the guest's memory 1.987 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.686
Then I find very few patterns in the guest's memory after 3 seconds 4.623 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# read cache
When I mount the USB drive again 0.154
And I read the content of the test FS 0.400
Then patterns cover at least 99% of the test FS size in the guest's memory 1.830 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.381
Then I find very few patterns in the guest's memory after 3 seconds 4.909 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:339 0.691
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
53.026
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.020
Given I have started Tails from DVD without network and logged in 7.015
And I prepare Tails for memory erasure tests 0.337
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.343
Then I find very few patterns in the guest's memory 1.693 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.406
Then patterns cover at least 99% of the test FS size in the guest's memory 1.826 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.574
Then I find very few patterns in the guest's memory after 3 seconds 4.523 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
# read cache
When I mount the USB drive again 3.275
And I read the content of the test FS 0.312
Then patterns cover at least 99% of the test FS size in the guest's memory 1.724 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.435
Then I find very few patterns in the guest's memory after 3 seconds 4.557 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:339 0.729
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
52.714
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 6.928
And I prepare Tails for memory erasure tests 0.350
When I fill a 128 MiB file with a known pattern on the root filesystem 21.421
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.984
Then patterns cover at least 128 MiB in the guest's memory 1.466 
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 20.557 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:339 3.857
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:54.894
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:16.392
And I prepare Tails for memory erasure tests 0.344
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.146
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.007 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:339 3.476
After features/support/hooks.rb:108 0.044