Project Number Date
test_Tails_ISO_devel 4412 23 May 2026, 11:02

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 7:8.819 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
16.832
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 6.466
And I prepare Tails for memory erasure tests 0.302
When I start a process allocating 128 MiB of memory with a known pattern 1.178
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.006 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.169
Then I find very few patterns in the guest's memory after 5 seconds 6.710 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:335 0.911
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
16.937
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 6.416
And I prepare Tails for memory erasure tests 0.323
And I find very few patterns in the guest's memory 1.712 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.609
Then patterns cover at least 99% of the test FS size in the guest's memory 1.920 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.301
Then I find very few patterns in the guest's memory after 3 seconds 4.653 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:335 0.824
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.009
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 6.382
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.170
Then I find very few patterns in the guest's memory 1.758 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.455
Then patterns cover at least 75% of the test FS size in the guest's memory 1.954 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.647
Then I find very few patterns in the guest's memory after 3 seconds 4.716 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.167
And I read the content of the test FS 0.441
Then patterns cover at least 99% of the test FS size in the guest's memory 1.817 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.366
Then I find very few patterns in the guest's memory after 3 seconds 4.726 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 0.808
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
55.854
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 6.497
And I prepare Tails for memory erasure tests 0.313
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.991
Then I find very few patterns in the guest's memory 1.791 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.472
Then patterns cover at least 99% of the test FS size in the guest's memory 1.733 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.536
Then I find very few patterns in the guest's memory after 3 seconds 4.566 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 3.783
And I read the content of the test FS 0.303
Then patterns cover at least 99% of the test FS size in the guest's memory 1.761 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.387
Then I find very few patterns in the guest's memory after 3 seconds 4.715 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:335 0.886
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
50.135
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 6.473
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the root filesystem 19.484
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.953
Then patterns cover at least 128 MiB in the guest's memory 1.444 
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 20.462 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:335 3.439
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:18.050
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:38.661
And I prepare Tails for memory erasure tests 0.321
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.248
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.812 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:335 3.729
After features/support/hooks.rb:104 0.008